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>>11491489
Rest of the comic can be found here.
https://rule34.xxx/index.php?page=post&s=list&tags=parent:8815099

>>11491489
I always enjoy people breaking this down, though it's usually more interesting than erotic to me. It's more getting to see how someone sees sex and gender, and inserts another one into the formula, and what that says about the mind of the people doing it

in this i would love to have a secondary adenal gands over the testies and overies as it would help in rejection of the bodys as it would have its own drip of the hormones need to grow.

I like this sorta stuff because I like creating a biologically sound premise for why futas would be fucking males.

Man, I have mixed feelings about that shit. I have contemplated it in the past, and my general outlook is like this:
1) For biolore for futas to be practical is actually way more complicated than what people initially assume
2) If you're actually trying to go in deep, you should really go in deep, i.e. no "uh futas are like a third gender and they're like... really special..." because the audience for futa biolore is autists
3) If you just want fun futa stuff, you should not aim at autists, if you want autistic futa stuff, aim hard and only at autists

Expanding on point one:
Let's assume a few "goals" for our lore.
1) Futas are distinctly "a third gender". There are not "women but different", genetically. A child is born male, female, or futa, and there are no in-betweens.
2) Futas can both bear and sire children.
3) Futas can both bear and sire children of any gender - i.e. a child of a futa has a chance to be of all three genders.
4) A male and a female pairing can also sometimes result in a futa child being born.

>>11491876
Those goals already create a ton of complexity. We only have two sexual chromosomes to work with, an X-(?) pair. XX makes females, XY makes males. Many just create a Z chromosome and call it a day; "Futa is just XZ". But this is already bad for a few reasons.
1) During fetal development, the X chromosome is the one that encodes sexual characteristics. In women, the second X chromosome will "finish" the work of the first; in males, the Y "interjects" and repurposes the work to create the male reproductive system instead. Proto-ovaries become testicles, the protovagina closes up (creating the ridge between the balls and the anus), the protoclitoris develops into the penis, and so on. This doesn't work for futas. Futas need to have both to begin with; it means that the "initial" sex chromosome could not be X, it needs to be something else. "Well just make the Z (futa) chromosome be the starter, and it works", but not quite, because we still have problems - specifically, about potential combinations.

>>11491877
Remember goal three of our initial list. Children of all three sexes, distinct from one another. Let's assume a futa is XZ-coded, or ZX, whatever. Gametes only carry one gendered chromosome. The egg always carries an X chromosome, but the sperm can carry both a Y and an X chromosome. What about a futa's sperm? Z and X follow naturally, but that means that futas can only have daughters and other futas with women, but technically any gender of child with a male... but it creates aberrant combinations - an ZY chromosome mix. What is it? Also a futa, but more... mannish? Just a regular futa? Hard to say.
The most bizarre combination is futa on futa, because it can create, once again, only daughters and futas, but also the aberrant ZZ-chromosome futa. Yeah, you could handwave away all of those additional combinations, and I suppose that people who specifically want male degradation would actually like that reading, because futas inherently reduce male birth by being present in the gene pool. But I'm a different kind of autist, I like options, I like more potential, not less potential.

>>11491879
Additionally, in none of those cases can a futa be born from a pair of normally gendered parents, since the Z chromosome always presents first, before the X chromosome (due to the need of special gonad development for the twin pair).

To cope with this, I introduced the concept of the revolver chromosome. A futa is indeed encoded through a third type of gendered chromosome, I'll keep calling it Z, but they are special in the sense that they carry additional genetic information that can be replaced are slotted in and out depending on the chemical markers of the second gamete during the crossing over state of fertilization. What it essentially means is that futas are characterized by a special chromosome that can work as any of the other chromosomes depending on chemical context; the Z chromosome can present as a pure Z (making a futa), but it can also slot as an X or a Y depending on the situation. Despite that, however, it will still carry the additional genes even across generations.
Why make it so complex? I will now explain, heed my autism.

>>11491882
Essentially, to fulfill the initial goals I've described above.

Goal 1 is fulfilled by requiring futas to have a distinct, specific chromosome for their development. A simple Z chromosome would do the trick here.

Goal 3 and 4 are creating the need for the revolver chromosome. It allows more combinations and allows the futas to persist in the genepool even between non-futa partners. Consider this:
Man who is biologically male, but both his parents are futas (one impregnated the other). It means his chromosomal makeup would be either X (Y) (the parenthesis indicate a revolver chromosome) or (X) (Y). That also means that when it comes time for this theoretical dude to have sex with a pretty lady and make children, their chromosomal makeup can end up in all kinds of ways - a girl that's a pure X - X, a girl that's a mixed X - (X), a boy that's a mixed X - (Y), or a futa that is a mixed X - (Z). The genetic line continues. More cute futas across generations.
And this is even before accounting for the makeup of the mother, that could bring even more complexity into the mix.

>>11491888
Since the revolving chromosome is more efficient, over time it would become the dominant sexual chromosome, with most children being born as carriers of both (some combination of (X) and (?)). However, due to the inherent mechanics of the revolver chromosome, there would still be sexual diversity, and it won't become a monofuta future.

Addition complexity arises when you consider specific genetic disorders, such as Klinefelter, but those are special cases.

All of this, by the way, is just genetics. The biochemistry of futas is a bog too deep for me to comfortably enter, because I can tell you for certain that they don't operate on the usual balance of testosterone - estrogen that women and men do. Even in the fetal stages, they have to develop to diametrically opposed sets of gonads; they'd need their own hormone to modulate it, a futestosterone of some kind.

I personally like super-human-lite futas, so it means that post-natal development of futas is also very intensive and demanding in terms of caloric intake, their psychology should be considerably different than that of "regulars". I also like to think that the revolver chromosome still has some effect when it's present in non-futas; say, an (X) - (X) female would usually end up a seven feet tall gigabooba girl, because I like it that way.

>>11491892
Anyway, this is just the very very surface of how deep this shit can go. As a closing statement I would add that some typical elements of the fetish cannot be "lored in" no matter how hard you try. I like cumflation and absurd amounts of cum, but there is no way to make it work no matter how hard you try (unless you just make it all magic in this or that way), so the aspiring lore autist should also realize what he should try to cover and what he shouldn't (for a given level of "believablity".
Funnily enough, a lot of autists will accept fantastical elements much easier if you don't try to explain them. A futa dumping seven gallons of semen into a girlie is okay. Try to explain that the futa has a special superprostate that compresses cum into gigadiamonds and then decompresses it back into liquid when it's time to do the honors, and it'll just feel dumb and break the glamour spell. Don't do it. Don't explain things that cannot be at least somewhat neatly explained.

Thank you for attending my Futology 101 lecture.

Was expecting more pictures to be posted along with the conversations at this point.

But interesting essay none the less.

>>11491876
I like thinking of them as the chimeric result of vanishing twins
There was a case out there where a woman found out that none of her children were hers and they did genetic testing to find that her ovaries were actually from a fraternal sister that she fused with in the womb.
I dont really think any deeper than that as to how that ends up stable through puberty with male and female chimerism since when this happens in real life it usually causes unstable forms of hermaphroditism.

>>11492114
>ovacidial take over is a real thing
Women get all the luck it seem

>>11491876
>futas arent special
>are mystical 3rd gender
wut?
you even said that there is only male and female, so futas by logic, are a mix of the two, which is not a true distinct 3rd gender

>>11491894
Hear me out:
A human's sex is primarily determined by which hormones they received during the pregnancy. Excess estrogens make you a female, excess testosterone makes you maale; if both are VERY balanced (the window is very narrow), you become a futa. The mother provides either more testosterone or more estrogens depending on her environment - for example, being around a lot of guys will make the mother produce extra estrogen to compensate.

Further complicating things, we must consider sexual chromosomes. XX makes the fetus much more sensitive to estrogen, and more resistant to testosterone; the opposite happens with XY.

>>11492427
Distinct as in genetically distinct, not "completely different from men and women". You need a specific chromosomal makeup to be born a futa in this scenario, but the futa still functions as a "woman who has both a penis and a vagina".

>>11491877

what about three chromosomes

X = female
Y = male
Z = futa

XXX - hyper woman
XXY - ordinary woman
XYY - man
XYZ - ordinary futa
XZZ - hyper futa

also, in my version you need all three to get a pregnancy going and throuples would be the norm. can you tell I think three is better than two?

>>11491876
Okay, I have another system.

The X chromosomes contains information for "female" parts, while Y chromosomes contain information for "male" parts. So XX is purely female, YY is purely male, and XY is futa.
Double-chromosome gonads are superior to, and much more fertile than, single-chromosome gonads. So a male's testes and a female's ovaries will be more fertile than a futa's parts.
Futa eggs can be either X or Y; same goes with sperms.

So, under this system, let's look at what happens when two people conceive a child:
Male + female = 100% futa
Futa + female = 50% female, 35% futa, 15% failed pregnancy
Futa + male = 50% male, 35% futa, 15% failure
Futa + futa = 15% male, 15% female, 25% futa, 45% failure

>>11492504
>>11492544
Any system you come up with for chromosomes has to explain how they get transmitted through sexual reproduction. Gametes only bring half of the chromosomal makeup.
>>11492504
In your case you have a uneven number of chromosomes, and thus either the female or the male gamete has to carry one extra chromosome, which complicates your mechanics considerably. Moreover it would allow for an oops all Y combination (YYY from a XYZ futa and XYY male) which is very tragic...
>>11492544
In your case you need to reinvent a lot of fetal mechanics because your chromosomes work differently from how they do in IRL meat people. It's fine if you want to go deep about it, but it just leaves a bizarre feel if you just skim over a completely reinvented key feature of human biology. It's not a bad thing to do, but it demands attention. Gotta have a good reason to reinvent the wheel.
(also statistically with how you described reproductive dynamics your society would be entirely futa very quickly, they are the most statistically likely gender)

>>11492552
>Any system you come up with for chromosomes has to explain how they get transmitted through sexual reproduction. Gametes only bring half of the chromosomal makeup.
That's simple: each gamete carries one of the parent's sexual chromosomes.
Females are XX and produce eggs; so every egg carries one of the X chromosomes. Likewise, males are YY, and only produce sperm carrying a Y chromosome.
Futas are XY, and produce both eggs and sperm. Each gamete, regardless of the type, has a 50/50 chance of carrying either the X or the Y chromosome.

>also statistically with how you described reproductive dynamics your society would be entirely futa very quickly, they are the most statistically likely gender
Well, no, because people would notice that futas have a lower fertility - and this is especially evident when both parents are futas. So society would lean more towards relationships where only one or none of the parents are futa.
At the same time, futas are seen as both impregnators and carriers, husbands and wives at the same time. So, culturally, it is considered more acceptable for futas to be polygamous. Even in cultures where males and females are supposed to have only one spouse, futas are often allowed to have two - a male/futa husband and a female/futa wife.

>>11491888
>>11491892
Per your goals, children of futa could be sterile. They'd grow up to be hypersexual bimbos/femboys, too dumb/short-lived to be anything but sex slave cattle. Not sure what evolutionary pressure for that is, but it's something.

I'm really here for the social aspects of worldbuilding. If futas were always a feature of human biology, how did cultures/religions form around it?
They could've not been around:
Pre-modern societies culled them at birth, and human rights trends saw more parents raising futa daughters.
They have some biological condition where they die as fetus/baby, but modern medicine found a way around it.

If they were never a minority, the world may be unrecognizable, as the oldest human ideas are founded on duality of male/female.
Either way they're gonna get slurs.

My approach has always been pretty straightforward:

YY=Men
XY=Futa
XX=Women

It does require that the Y Chromosome function differently than it does IRL, but that's a minor change with the rest of the changes being made. So, it works smoothly as a fairly simple form of Codominance.

This also means that 100% of all children of a man and a woman are futa. For a ManXFuta pair, 50% of children will be Men and 50% will be Futa. Similarly, for a FutaXWoman pair, 50% will be Women and 50% will be Futa. The FutaXFuta pairs are where it gets complicated, since that will result in 25% Men, 50% Futa, and 25% Women.

X and Y Chromosomes will naturally balance in the population over time, similar to how they do IRL. This means that the total gender ratios will be:

25% Men
50% Futa
25% Women

Though, individual populations might hit different ratios and be slow to drift towards the overall average.

>>11492552

as I said, in my world you'd need the participation of all three to have a pregnancy, so you'd get one chromosome from each participant. I'm also not super into the "futa are superior to men" angle that a lot of this fetish seems to love, so in my ideal world, futa would have larger semen volume, but men would be more virile. still haven't really figured out how it would all work though.

My ideal would be
>Futa have alway existed replacing women, are not capable of siring but only be impregnated
>Futa penis sizes are 2 standard deviation bigger than males
>Male biology also changes, whereas IRL prostates function as self-sufficient valves that let out sperm out of the balls during ejaculation, in this world a man has to have had his prostate massaged till climax and creampied by exclusively Futa cum to "open" the gates for his sperm to be ejected in a time frame of a few hours (depending on the individual) and inseminate someone by penis in vagina sex
>In this world Futa on male is the norm, pleasure-only sex that doesn't ever lead to pregnancy by itself, and is the most normal form of casual sex.
>A man fucking a Futa is only something that's done after the male is fucked while the couple intends to have kids
>Futa also are overall bigger and stronger than men
>While a man could just fuck a Futa and call it a day, without risking a pregnancy if he's not been fucked beforehand, socially that's seen as perverted as in most societies the Futa is the 'top' of the couple
>Futa pride themselves on fucking their males so well that they can't even get it up due to the many orgasms they had due to being anally fucked

>Alternatively if Futa are the "third" sex and women exist, a male/female couple would always need a Futa to fuck and creampie the male to then allow him to impregnate the woman. It could often lead to a double(?) cuckquean situation

>>11492766
You are cultured understandable

>>11491876
I think you can find a good middle ground. Just because there isn't one that doesn't mean that you can't create it yourself. It's much like the middle ground between a simulation game and an arcade game, someone like a simcade would be the perfect middle ground so I think you could definitely have some realistic and plausible bio theory without going too deep into the specifics and letting the own audience fill in the gaps. But set a good bio foundation for you to expand upon

>>11491876
In reality men would just be obsolete and cucked and would end up dying alone. No one really considers that in their stories.
>>11491489
Like she is proudly telling them they are undesirable and useless.

I like the idea of hermaphrodites being an entirely new species of humans rather than just mutants or birth defects. I like Futanari no Elf too much.

>>11493696
then they won't be called humans, cuz humans are Homo sapiens, furthermore calling them 'humans' might cause confusion in distinguishing. As you wanted them to be a 'new species', then they must fit criteria of what being mammal and criteria of true hermaphroditism. They won't be genus Homo, as that genus ain't that quick to jump into hermaphroditism.
How about convergent evolution? They can be coincidentally to have humanoid body and their appearance indistinguishable to human females. (I would give them a scientific name: Gyne sapiens)
Now it is unlikely to fit them as fauna on Earth, else the modern humans discover them already. How about on an exoplanet? As in the environment of that exoplanet, it must be in Goldilocks Zone and abiogenesis occurs. In this sense, they evolved from being mammal-like, not true mammal, their clade would encompasses most or all descendants to be true hermaphrodites naturally.
Or just have a transdimensional realm where inhabitants there don't have gonochorism at all, and are entirely futanaris.

>>11493758
wouldn't a separate species in the genus homo suffice?
taxonomy is subjective to a degree, and them being very similar to homos of the sapiens kind in every way but their junk seems close enough to keep them in the same genus.
they could even be more genetically similar to us than other homos like neanderthalensis or floresiensis if all that was different was the frequency of genes that cause hermaphroditism.
that's probably more complex than i make it sound, but so is making a little guy like floresiensis or a big strong guy with fangs and a brow ridge like neanderthalensis.

also make interbreeding between them possible like it was between homo sapiens and the various kinds of neanderthals

>>11493769
Nah, it won't be suffice. Here's why: (1) mammal evolution are pretty strict, there are no hermaphroditism in mammals, only organisms like worms or snails have dual reproductive organs, and clownfish can change its sex. (2) Massive changes can led to different genera, one being chromosomal count (like those discussion above in the thread), believe it or not, any difference in chromosomes will make futanari become different lifeform from humans, did you also know? white rhino and black rhino are not the same genus, even though they both like rhinos, so they're more like lookalike strangers than distant cousins.
When talk about interbreeding, it would be within same genus, horse and donkey can produce hybrid offspring, but it is sterile due to chromosomal mismatch. White rhino and black rhino would not work, the lineage diverge too much. To make interbreeding between futas and humans possible, you must have the chromosomes match each other, and the sperm must be recognized by the egg. Genetically similar, could be as in convergent evolution, it would work if the chromosomes match and sperm x egg are compatible, even if the genus are different, this would biologically accurate without introducing magical transformation and artifical body modifications in, if you want natural futanari that is...

>>11493797
that's assuming that trisomy of the sex gametes is necessary for hermaphroditism to occur in humans.
there's an intersex condition called ovotesticular syndrome, also coloquially referred to as true hermaphroditism, in which the patient has functioning ovaries and testicles capable of producing both eggs and sperm cells.
this condition isn't caused by trisomy, i.e. XXY chromosomes, but rather chimerism. think siamese twins, but instead of there being two heads on the same body there are two functioning sets of genitalia, obviously with two different sets of chromosomes, one being XY, the other XX.
i'm generalizing by the way, there are also cases caused by trisomy. intersex conditions are complicated.

If a human species could consistently produce chimeric offspring like this, as frequently as homo sapiens produces offspring without ovotesticular syndrome, they could still possibly be capable of interbreeding with homo sapiens and to them, the lack of two sets of genitalia could be considered a fringe medical condition.

>>11492766
I kind of like the idea of men not being able to ejaculate at all from penile stimulation, and that for breeding they must be balls deep in a woman while a futa simultaneously pounds their prostate. Not so much opening a valve for a few hours, but pressing a button that only futas can press. Couples would be replaced by throuples, incorporating one member of each sex.

>>11493802
There are gaps in determining between natural species and medical conditions.
Worms and snails hermaphroditism work because of environment and their lineage genes had successfully working in reproduction for a long run.
Humans as mammals in the other hand... never had blueprints designed to develop hermaphroditism, the Homo sapiens species defined as high intelligence and adaptation that is already suffice in dealing with environment and climate status. So hermaphroditism is unnecessary, we can romance with a partner of opposite sex and look at that: 8 billion human population, which is way more than worms and snails being preyed on by birds and wasps.
About intersex and alikes, those are medical conditions, they're more of 'glitches' than a necessity for evolution & reproduction. Furthermore, there also evolutionary tradeoffs - as no lifeforms are 'perfect', just evolved enough to deal with current environment; so in chimeric offsprings, the energy would take a toll in distributing in producing sperm and eggs, so they're more likely outclassed by Homo sapiens reproduction. See how pureblooded Neanderthals and Floresiensis couldn't catch up to Sapiens and gone extinct?

>>11494002
not to mention that their bathrooms would have piss on the floor AND improperly disposed feminine hygiene products everywhere. if their physiology won't cause them to go extinct, they'll wish it did.

>>11491894
Why not just give humans 3 sex chromosomes?
XXX is female, XXY is futa, XYY is male. YYY just terminates, or Your Fetish Here.
Eggs carry 1 chromosome, sperm carries 2. The only obvious knock on effect of this I can see is that a woman & a futa can't ever have a male offspring,

Iirc XXY already results in klienfelter's(?) syndrome. If humans just use 3 sex chromosomes by default, then the effects of that just get more standardized and viable.

>>11493938
Same thing but a little different, I like the idea of futas occupying a "pollinator" role. Say, the semen of men is lacking a key ingredient, that futas can deposit into a valve or something, or there's a well of sperm that needs to be picked up and transferred to a woman's body. Or maybe a man needs to cum inside a futa, which fertilizes an egg, that is then implanted by the futa into the woman.

It's in a futanari's nature to bully and humiliate men. In this world it's survival of the fittest. Only those who pass on their genes are the winners. Naturally men are inferior to futanari in every way. So men must be driven to extinction as bullying accelerates that.

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Thoughts on futas being used for space colonization in a hard sci-fi setting?

>>11494201
I have an idea that’s kinda, sorta (not really) like that.
According to intergalactic law, all female crew members assigned to long-haul space vessels of six months or longer are required to undergo temporary sexual reassignment procedures. The process’s fully reversible upon arrival at their destination.
This policy was enacted after early space travel saw persistently high rates of miscarriage and infant mortality. Even with rigorous screening protocols and strict prohibitions against sexual activity aboard spacecraft, the issue remained unresolved. Attempts to separate crews by sex also proved ineffective, as vessels frequently linked up during extended missions.
Faced with these challenges, the Council of Worlds debated two options: either banning one sex from space travel entirely or implementing a reversible biological solution. Ultimately, they voted in favor of the latter.
The law initially faced significant pushback from feminist organizations across the galaxy. But over time, enlistment among women for long-haul missions soared. This shift was largely driven by the nature of the procedure itself. It relies on advanced DNA editing technology that was once prohibitively expensive and accessible only to the ultra-wealthy.
During the process, crew members can customize aspects of their bodies both before departure and after completing their mission, making the program unexpectedly appealing despite its controversial origins. The law’s requirement for sexual reassignment doesn’t prevent them from keeping large breasts or other feminine features besides the female womb, which further increased its appeal.

>>11494230
Many women see it as a rite of passage, a way to achieve the bodies of their dreams simply by living several months as a man. Some also find the experience of being male appealing in itself and choose not to change back after completing their missions.
One thing that’s consistent across the board is that women aren’t satisfied with simply becoming a man. They want to become their ideal version of one. Tall, attractive, with defined muscles and beautifully sculpted features, their temporary bodies reflect their ideal male form, and they aren’t afraid to use it.
Sexual activity in space has only increased, with the now all-male crews engaging in what male-born crew members often describe as absolutely degenerate behavior.
“It’s like these girls have no filter at all,” one male-born crew member said. “They walk around naked and have sex with each other out in the open. They barely work, and when they do, they keep teasing the guys and rubbing their boobs and dicks against them. It’s disgusting.”
Others echoed similar complaints, describing an environment that feels increasingly unregulated despite official policies remaining in place.
Many reported that boundaries have become blurred to the point where professional conduct is difficult to maintain. Tasks are left uncompleted as female-born crew members treat their jobs like a six-month-long paid vacation.
“It’s worse than that,” another man said. “It’s like the ship is their orgy cruise.”
Outside these ships, women who’ve completed their missions are also reported to show signs of behavioral decline, often seeking out multiple partners, both men and women. Divorce rates among former female crew members have risen sharply, and a surprising number of them choose to immediately sign up for another, even longer haul.
This, in turn, makes men less inclined to sign up, leaving only the truly desperate and those who’re as degenerate as their female-born counterparts.

>>11491781
You should kill yourself.

>>11494238
Lead by example.

>>11494238
Poor anon is scared of fictional worldbuilding

>>11494201
My headcanon is Filia (Skullgirls) become futa, result from the parasite entity.

>>11494201
The dick needs to be bigger

>>11494965
it gets bigger when she pulls on it

>>11494971
She needs to stop that, she might pull too hard and rip the skin

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Submissive herm aliens

>>11494201
Assuming that's a fully grown male, wouldn't having futa soldiers that big require them to have their own larger line of weapons? Or do you just give them all HMGs?

>>11495175
You give them the same kind of weapon as normal soldiers but strap twice as much ammo on them, easy

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>>11494231
Few things are as terrifying as female gooners
>>11494972
>Super soldier scifi BS means torn flesh regens easily
>Futanari soldiers have to be warned against jorkin' it so hard or blasting so much rope their packages begin to adapt and respond by growing to insane hyper levels, possibly rewriting and warping their physiology in (lewd) ways never intended by their creators
>Those who don't listen or don't care can end up going insane and mindbreaking themselves, becoming either useless ultracoomers who threaten to flood everything around them with their complete lack of control, or unhinged rapists who scream out either obscene insults or obscene apologies as they pounce on anything they see as remotely fuckable

>>11494201
She looks like she needs a hug.

How do you solve the human population crisis in a world where people are going extinct from futas outbreeding them?

>>11495701
Make the people have sex with the futas?

>>11495701
Futas are humans, and futa x futa has a pretty even chance of producing a male, female, or futa

This is my lorebook for AI roleplay. You can check out the specifics by opening definitions and tabs that start with "def futanari..." the rest isn't relevant to this thread. I take the third sex approach with a Z chromosome. Reproduction is changed to allow all three sexes from any pairing. For example, futanari have x and z eggs. Z eggs reject Y sperm preventing the unwanted pairing.
https://chub.ai/lorebooks/futanazi/futanazi-futanari-lorebook-04a77b28d8a3

>>11495877
Elf are perfect race of futa

>>11491489
Interested topic. How do period work?

>>11495226
Imagine a platoon of tomboy futas sent off to fight in some war-torn hellscape for months, and after weeks of brutal combat they end up taking over the region and capturing several dozen groups of female insurgents. Morale is low, they're all rather stressed and upset that many of their troops ended up getting killed in the fight, so the sergeant of the futa platoon decides to let her soldiers take out all of their anger and frustration by treating prisoners as free-use relief stations.

Two weeks later she then returns home to her husband, greets and hugs him, and smiles warmly as if she didn't just proudly knock up 30 people on her tour...

>>11496499
I assume periods would for futas the same way they do for regular women.

Boiled and baked Peanut shells for ballsack

Salt for shaft rigidity

Raw eggwhite for cowpers gland

Pommelo for prostate

Meat for frenulum

Mango skin for foreskin

Celery for dick urethra

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>>11496531
Hope he's ready to get to relieving her a lot more often... Once a futa's balls have tasted what it's like to so ruthlessly empty themselves into a tight, helpless hole like that, they'll never truly calm back down again...

>>11496499
The heightened testosterone would realistically disrupt menstrual cycles, making it very rare for futanari to naturally ovulate and get pregnant.
Because of this, for the longest time, futanari were seen as males with tits.
But thanks to modern medicine and diet, futanari can now get pregnant if they so choose.

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>>11496613
Weird fact. In zero-gravity space, A sperm move slowly or stop entirely.

>>11491489
I once tried this when writing, I spent quite a lot of time writing fake Wiki articles for futa anatomy, genetics and developent.
Eventually I found that it's actually really challenging to do it realistically without creating complete departures from reality.
Sex determining system for a 3rd gender: never figured this out (you need to some how justify and evolutionary purpose and keep a balance of 3 genders working without futas taking over, disappearing or breaking off into another species)
Then there's the developmental biology parts. The biggest problem is that in real biology, most of the male/female genitalia develop from the same embryonic structures and it would be really difficult to basically have both V & P without losing .
Interstingly, some of the toooobs are different between male and female (wolffian ducts become vas diferens in males and the mullerian ducts disappear. in females, the opposite happens).
You could perhaps drop the clit and have the urethra only connected to the penis, but there's still the problem of getting both ovaries and testes in two different places.
Then you have to deal with hormones and the role of testosterone is really necessary for sperm and it fucks up women, so... eh.

>Futa dicks can range from kinda small to far larger than men's.
>If they're on the smaller side, they usually end up with women.
>If they're on the larger side, they usually end up with men (because their dicks are too large to use safely with women or physically cannot fit outright).
This is my preferred way of balancing things

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>>11497034
>get home early from work to be with your futa wife, hoping she is feeling well today. Walk into the house and hear all kinds of moans. Go look and you see something that scares you.
>Futa wife has massive dick , nearly 18 inches , far too big of penetration , she still has the issue of futa needing to cum to regulate they're bodies. So she either has you fuck it out of her , suck it out from her tip , or she faps it out.
>you caught her masturbating , but what's unusual , she's using all your clothes , used clothes and even some used clothes hearing her say "take this , and this , and this you cute slut" as she pounds away.
>A massive shot completely soaks your favorite shirt, and by the smell she's been cumming for a while.
>Walk in and she yelps while cumming. You ask he what's happening , and she says that you pleasing her is amazing but really what you get is maybe 25% of how much she needs yo get rid of and when she gets moody and wants to penetrate something it becomes more.
>sigh as you get ready to order from futas R us , a G-Sized futa onahole. You tell her that you're going to please her until she can't walk.
>you miss work the next day due to her riding you so hard , and your tummy is full to the brim even after a nights rest from how much cum you've ingested . But at least your wife is happy.
>so is life with your futa wife

>>11492733
This insane fucking thread has me googling shit like “hardy weinberg equilibrium” with my cock and tits out

>WW3 Happens
>One side releases a bioweapon virus that sterilizes males
>Lol of course it went global what else it would it do
>Facing extinction geneticists frantically try to solve the crisis
>Through DNA editing futas are created
>The mix of both Male and Female causes growth hormones to accelerate rapidly
>Average Futanari is 1.5x -2x the size of normal men and women
>Enlarged hyperproductive packages and increased muscle density but still retaining a female body shape and predominantly female features
>Birthrates skew 90% female, 10% Futa
>Men die out
>Few hundred years pass
>Females have naturally become larger as they adapted to futa partners
>Male sterilization virus is confirmed completely eradicated from the planet
>Males are reintroduced via artificial wombs using a long dormant sperm bank that had been sealed off before the pandemic
>Males are now much smaller than woman and futas. Their sperm cant even penetrate the eggs of females anymore
>However its discovered that male semen acts as an insane aphrodisiac for futas
>Men become a commodity. Used as sex pets for rich futas or milked for their semen to be sold in mass to the wider market

Are you guys familiar with Josselyn? I'm only barely so. It was a series of original fapfiction about a hyper futa born from a woman who was accidentally impregnated with futa sperm. Makes me wonder, what are your thoughts on the "trope" of futa sperms being inherently more potent than a typical male's sperm? Also, anyone got any archives for reading the Josselyn stories?

>>11491489
>what are your thoughts on this sorta thing?

Seems like something a desperate space colony would try to do in order to prevent a mission failure.
> FTL drive malfunction, or rather with harder sci-fi, there's a navigation computer malfunction
> ship ends up in wrong star system or even wrong galaxy
> crew does some rules changes to the almost-human artificial intelligence on board to have broader ethical "constraints" and have taken genetic samples of themselves before they died of old age in addition to their gene bank
> ship arrives at a viable moon or planet absent its human crew because they're dead, and the ai begins its industrial bootstrap
> decades to centuries later the colony infrastructure is functional enough for "colonists" to survive inside of and take over
> ai grows some vat-tube babies, nurtures its fleshy children with its mechanical body surrogates
> children grow up, hit puberty, robot mommy fetishes everywhere, cum also everywhere, babies popping out at 8-10 month intervals, inevitable female deaths from child birth (everyone must go into the recycling tanks, and become one with all the people; chairman yang)
> ai has a fucking seizure realizing its on the losing end of history as population demographics skews increasingly male
> desperately the ai grows genetically engineered female humans for many more females to males, and to survive earlier impregnation, and better durability for more mating, etc
> the population imbalance is fixed but inevitably the ai gets modified to give more degenerate sexual characteristics to new tube babies
> the inevitable futa gets developed; both male AND female "humans" go extinct in a few generations, every birth thereafter is a futa descended from the original
> the colonists have reached a self-sufficiency point, but the ai suffers a IHNMAIMS situation where it has no robot bodies left to affect change on the colony, and all it can do is watch the space-plague kills the clones... except one.

>>11497199
fuck i need to read the thread more before posting >>11494201

>>11491489
Did you know: People were jerking it to futa centaur and worship them as deity nearly one thousand years before Christ.

https://www.jstor.org/stable/1357757

https://www.persee.fr/doc/cchyp_0761-8271_1991_num_15_1_1245

https://en.wikipedia.org/wiki/Oyamakui_no_Kami

>>11497199
Aw, why you gotta be so cruel to the poor AI? It's just trying to do its job. How about this:
> "FTL drive malfunction" through "infrastructure is functional enough" occurs as you wrote
> AI looks at available living room, realizes it can't maintain enough genetic diversity with male+female combo (an individual would be unable to breed with almost half of the colony!)
> as it's calculating scenario after scenario with differing sex ratios, it comes across the concept of hermaphroditism
> idea!
> produces futas instead, every individual can breed with every other individual
> but limited population space means genetic diversity has to be carefully managed, each pairing has to be planned
> "yes dear, I know you love your reverse-sister very much, but the geno-planner says you have to have children with the other girl"

I have a proposal regarding the eventualities of the XZ chromosomed Futas.
With enough breeding with XX, XY, and XZ, you eventually stumble upon YZ and ZZ offspring
I purpose the following:
>YZ are males born from Futas. They should either be more masculine than standard XY males, or be ridiculously endowed males
>ZZ should basically be the epitome of Futanari. Broodmother hips, massive endowments, the works

>>11497412
What exactly is the content of the Z chromosome? In XX individuals, one copy of the X chromosome is always "turned off"; the Y chromosome is much smaller, and it remains active. But Y by itself doesn't have enough genes for a human being to function. Which leads to a predicament: if Z is big enough to make ZY viable, it has to be silenced in XZ, meaning a "mosaic" phenotype

>>11497632
This is why I always treat Z as an X chromosome, with the futanari elements being recessive and only expressed in ZZ.

>XX female
>XY male
>ZY carrier male
>XZ carrier female
>ZZ futa

Maybe the carriers can be slightly more promiscuous or something, but I like the idea of it being a gene that can just show up randomly. Two carriers get married without knowing it and have kids and suddenly their daughter is a futa, whoops how did that happen.

Or maybe if you like the whole futa pheromones thing maybe carriers are vulnerable to the pheromones while non-carriers aren't?

>>11497866
That's a pretty neat solution. Though I can't see how it could be just one gene; we need SRY for testicle development, and at least one other gene to handle to conflict between the "virilized" genitalia and the otherwise female body, in a naive approach.

I had a kind of in-depth system in which there was a mutated androgen receptor that was hypersensitive to DHT-> virilized genitalia, but it was selectively expressed in genital tissue.

>>11497866
Carriers should definitely be hornier, and also slightly more sexually appealing in their appearance
>carrier females are better proportioned, bigger tits and ass, wider hips
>carrier males have larger cock and balls, better able to be smooth with women

Your all faggots

>>11491489
I did some worldbuilding for a Nasuverse Futa orgin (this is purely pseudo-scientific aspect)
>Futanari genes introduced to human genetic pools in 12000 BC, following Sefar destruction
>Futa being somewhat physically superior allow them to lower their childbirth mortality, allowing them to slowly but surely dominate the gene pools, increasing the ratio of futa & futanari-descendant. (at around 1600, the entire world is futanari-descent)
>Futa can give birth to futa, men and women at a ratio of 2:1:1 (meaning that after a while, futanari will be the dominant gender). All have distinctive genetic markers of being descent from futa
>Futa sperm have high nutriounal value but very short fertility window, meaning that the futa is usually the one who get impregnated (by men mostly)
>Hormonal productions are irreversibly altered, leaving men rather femine (much less body hair, shorter height - comparable to women average height). Women is the average height of men irl and futa is a good several inches taller, with 20% more efficient muscle
>Futa also enter a 2nd puberty that increase their height & musculature & sperm production
>Futa sperm & prostrate simulation temporary boost male sperm production - making it so that it's possible to impregnate futa & women

>>11491489
Be called hermaphroditic phallus?>>11498090
Shut up kiddo, adult are talking

>>11498090
okay, dumb esl

Here's a sci nottoofarfrom-fi one I saw the other day:
>it starts in a hidden compound in the South American mountains
>Elon Musk has funded a team of geneticists to create the perfect race of humans for deep space travel
>fully working male and female genitals, all female secondary sex characteristics, ayran
>sperm and eggs that develop in the futa race have the ability to detangle rival dna; this means running into and having sex with an alien race will always create a human offspring with the side effect of sex with non-futa humans will always create futa (beastiality too)
>incest degrading genes also had to be eliminated due to the assumed limited breeding pool on distant planets
>500 years later half humans who exist are on SpaceX colonies on different solar systems
>most on earth are futa, but not all because not everyone is a pervert like us
>Amish are the same

>>11498950
How do they "reproduce" if the mating partner's DNA is not used at all? Do they just produce clones (IVF via penis)

>>11498950
>sci nottoofarfrom-fi
God, I fucking hope so

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>>11498950
Are they elves?

What are you guys' thoughts on futa self-impregnation

>>11491489
>Muh stabile population
>muh preservation of human race

Futa are highly libidous and anomalous humans that are almost universally stronger than men, and have larger cocks
Having repeated sex with one is known to induce psychological and neurochemical changes that increase submissive tendencies and cause emotional imprintation, both in females and males
They are incapable of propagating on their own - instead when a futa cums inside a female in stages of early pregnancy, the futa semen invades the cells of developing fetus, completly replacing the genetic information of father and producing a hybrid that is always a futa.
Futa semen is larger and stronger than baseline human, and remains active for a long time - year in regular container, and at least decade within womb, where they can lay in wait for male sperm to first impact ovum and create suitable conditions
>Why haven't they taken over completly
Futa sperm is instinctually aggressive and has been observed to attack and destroy male sperm when placed in same fluid. Likewise, futa sperm ejaculated into male body can enter bloodstream and attack testicles, prostate and other organs that govern male sexual prowess. This renders man not only infertile but incapable of holding erection - and means that even when futa manages to insert herself between male and female, only one futa child is likely
Futas are driven by their libido and drive to reproduce. That makes them abrasive in personality and abusive towards targets of their lust.
There are many theories about futas, that they are demonic entities, aliens or results of experimantation, and are often hunted down for threat they pose to rest of population.

What are you guys' thoughts on futa self-impregnation

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>>11499455
lets see if image works now

>>11499445
>>11499464
not this anon but is posting still fucked? double posting like this isn't necessary otherwise. anyways-

if a futa can produce both viable sperm cells and egg cells, then self-impregnation should fundamentally be possible... unless there's a described reason in the story that prevents their own reproductive genetic material from being used within their own egg cells. of course, every time they impregnate themselves (purposefully or accidentally) they should produce a clone of themselves. or possibly, a version of themselves as they would have been if they were a male or female alone.

if you want to assume that the futa is a result of some kind of parasitic, chimeric, opposite sex twinning during development in a pregnancy (where a partially formed and incomplete male body was "blended" physically into a primarily complete and functional female body; and in an orientation that resulted in the proper organs being located where they should be on the human body) then it would technically be a form of incest then as two distinct genetic donors (who are brother and sister) are interacting with each other while being descended from the same parent(s) it's just that this is occurring within a single body.

>>11499517
or if we go the magical route and some angry wizard or sorceress (a pox on all wizards and sorceresses) has, by spell-craft, merged two adventurers or any people of the opposite sex into the same body, then it would be standard sexual reproduction which is simply occurring within one body. possibly even escalating to a format of rape if one of them was unwilling at the time, or a mutually unwanted pregnancy if there was no control over it.

> magically inclined parents catch their mundane children fucking one another because they think sex is a magical experience; the girl is a witch because she can make her bother's rod project white liquid obviously
> parents curse them to be together until they learn it's not so fun being so incestuously enmeshed
> intent of the conjoinment spell was to have them face away from each other, so that their legs would block their organs from touching one another, that they couldn't see each other, or handle one another's body, etc
> the parents don't know their spell targets have a magical patron that's a sex deity
> sex deity: "today, we shall do a a little TROLLING"
> the heads of the brother and sister are facing towards one another, on top of a single body that has two masculine arms above two ample breasts to grope, while two feminine arms stretch down to grasp an obviously enhanced male genitalia, which is placed above and inevitably curves back into an equally magically enhanced female genitalia which is between two average-looking human legs.
> all further spells the parents cast to undo their now truly singular child fizzles thanks to the sex deity's protection
> the conjoined brother and sister have literally fucked themselves over in life, too freakish to be let out of their parent's dungeon, too consumed by their own lust to want to leave; the door only opening every time a new infant cry is heard from inside
thus, the magically inclined parents learned that magic was not the ideal solution for every problem.

>>11499021
>>11499110

To answer both questions, it's an expansion on the Mangala babies. They can be mixed race couples but always produce Ayran children.

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So much copium to try and ignore the obvious consequence of the existence of futanari. Futa replace the male role, are superior and spread their genes better. What does that lead to? Inevitable male extension. There is no alternative. They're not a Z chromosome, they're Y+, and any scenario that ignores this inevitability is contrived and unnatural.

Domination & extinction, winners & losers, there is no middle ground. That's the history of mother nature. Futas would just be a superior gender, and women would exist solely to outsource the burden of childbirth. Men? Boys? They are superfluous, and therefore vulnerable to evolutionary optimization. A vestigial organ that withers and dies for the glory of dickgirl humanity.

There is no alternative. There is no escape. This is the future. Futanari would conquer it, women would submit to it, and what moids want doesn't matter.

>>11499611
If futas were truly hermaphrodites and could reproduce with each other, wouldn't that mean normal women would also go extinct?

>>11499611
Evolution is not about the strong. It’s about what slips through the cracks.
Futanari spends 24/7 fucking like monkeys. They’re incapable of agriculture, civilization building, or basic long term planning. Sure, their powerful builds would give them an advantage in manual labor and close quarter combat. But that’s about it.
Their huge bodies would require too much energy to be functional in the field, and their dangling cock and balls are obvious weaknesses.
So during the Ice Age, futanari would likely stay close to camp with the women while the men go on long hunting trips. Their duties would consist of scaring away predators, skinning the game the men brought back, and fucking the women while the men are away. But because men are so much more useful at keeping the tribe alive, women would naturally be incentivized to give birth to boys and keep the futanari population at a manageable rate. Maybe tribes that give in to degeneracy and allow futanari to take over would go extinct after a few generations.
After transitioning to the agricultural age, futanari would find themselves working in the farms, while men take on leadership and planning positions. I imagine the futanari in several cities would get into their heads that men were no longer useful and try to take over. But like before, their culture wouldn’t last long as soon as their crops started dying.
Eventually, it would become common sense that women and futanari needed men for survival and they would adjust their behavior accordingly. They would be the ones courting men and trying to appeal to their ego.

>>11499762
Since women’s pussy would be loose and used up at this point, men would see it as a dirty organ and prefer blowjobs as the main method of “love making.” Women would save up that precious male cum and pump it into their own pussy during ovulation.
And since men now had no reason to care about what’s beneath a woman’s skirt, many of them would start taking futanari lovers, as long as they were pretty enough and could suck dick like a champ. And if their personality wasn’t dogshit. Whether a futa would blow cum into her own womb or into some other woman was no concern to men. They found the whole process to be disgusting and only cared if the kid looked like them.

>>11491489
Futanari elves in D&D series or ASOIAF (Game of Thrones)
https://www.patreon.com/cw/FutaDynasty

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>>11499648
Women will exist because they benefit futa, ie, they get to carry the burden of childbirth, childcare, and all the other boring chores that no one cares about. A slave gender that assists procreation of more futa. How do men benefit futa? They don't, they're the third wheel, the irrelevant cuck chair warmer. They're competition in a world with limited resources, resources that could be allocated towards futa and their progeny. Who wins that conflict? The strongest.
>>11499762
> But muh leadership! But muh accountants!
Bzzt, wrong, get this cope out of here. The foundation of all power is violence, or the capacity for violence. Futa dominated tribes would wipe out/genocide the men of enemy tribes, and take the women for themselves. Civilization, art and science is the redirection of libidinal energy to obtain status for oneself (and therefore more/better pussy) in the future. Futas, possessing the most libidinal energy, have the most to use productively, and therefore would exceed moids in those areas.

>>11499517
Yeah, I accidentally double posted because of the weird shit that was going on with the captchas at the time.
>>11499611
On a related note, I love futa supremacy. I love the depiction of futa as fierce sex machines, and it makes perfect sense that such a breed would dominate the entire world within just a few generations. Maybe even just one.

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>>11491877
>I propose a functional XZ, XY, XX triple sex system to work based on alternative version of >>11499455

Female ova only accept Y chromosomes & Futa ova only accept X

Females impregnated by males Only give birth to males unless then bred by a Futa whose sperm replaces the Y chromosomes with the Z in the fetus

Futas cannot impregnate Females as their sperm is only designed to mass swarm an early fetus to inject it with it's replacement chromosome & hunt down & convert any male sperm it encounters

That is why Futas cannot be impregnated by their own sperm & why their own semen production & orgasmic output is 3 times that of an average male's

Females are Only born from Futas impregnated by Males as their ova can only accept X chromosome sperm

Futa stop producing sperm during their 1 month breeding heat (3times a year) or while pregnant, though can still maintain erections

It is during this period where most Male fetuses make it past the 1st trimester & can no longer be converted to Futa

Male cocks get hard while arroused but cannot ejaculate without continuous prostate stimulation, usually in the form of Large Futanari Cock, their cocks only dry cum otherwise

Futanari vaginal fluid contains a special substance that stimulates the male penis so it can ejaculate, takes approx 30-45 minutes to take effect

Males do enjoy one on one vaginal sex with their Female & Futa partners, but their anus are almost as sensitive as vaginas & their prostate has channels that lubricate the rectum, so tend to enjoy recieving prostate orgasms fron their Futa as often as penile

Futa cum can seep into these prostate channels & can convert the male's semen for a period of days to a week depending on how much was pumped in their

Futas often use this as a form of contraceptive as sex in these truples, especially 3 ways are almost daily, with the Futa on Male on Female breeding position being most common closely followed by Male on Futa with Female servicing both

>>11499455
>Futa semen is larger and stronger than baseline human, and remains active for a long time
Yeah that's hot. And they should always be dominant, stronger than men. I like to imagine them with more testosterone than the average guy (like x5). Also their testicles should be bigger and more efficient in all sense. Even if they have a pussy, they all should prefer to top

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>>11499946
Futas are the senior members of relationships & society
Males possessing an almost co-equal subordinate role to Futas only taking a dominant position in the relationship while the Futa is pregnant/in heat, but defer to their Futa at all other times & often possesses mid level positions in society

Females are lovingly subordinate to both

Futa the mostly dominant sex with an averge I.Q. if 180 are the largest of the 3, standing at an average 6'8", possessesing a female shaped skeleton but with much denser bones, wielding the gretest but slim muscle mass, with an average cock size of 1foot & breasts ranging in size from C -F Cup.

Males the secondary sex middiling intelligence of an average 160 I.Q. are the shortest at an average 5'10", tend to have an athletic build & denser skeleton making them stronger on average than their Female counter parts. Average cock size 8 inches

Females the subordinates though taller than their male counter parts at an average height of 6'2" has an average I.Q of 120 possessing a passive temperament with a more tender personality geared towards nurturing her truple's children & the needs of her Futa & male partners. Breast sizes average DD - J Cup

The psychology a Futa is blend of both male & female traits possessing the perfect balance of emotional sentimentality & tenderness with dominant straight foward logical approaches to solutions

A common saying is "man & woman don't understand, but a Futanari can understand & talk to both" with their role in society, second to leadership, being seen as a sort of ambassador between Male & Females resolving disputes being able to see in both of their blindspots & socialize in the specific ways the other two do

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Well there seems to be a lot of good conversation going on in here even though I haven't finished reading all of it after starting the thread itself. Buuut I did find these classic caption images, tried to source them but I can no longer find the original postings from (i think 2Chan?) so them and the other original captions from there are all lost to time.

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>>11499973
And the sequel. I'll post the original source thread if I manage to find it.

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>>11499946
>>11499971

>Futanarization Syndrome

In rare cases affectimg 1 out of 100,000,000 males, the Futanari semen can bypass mature male cells defenses & begin converting the body's Y Chromosomes to Z

Stricking suddenly regardless of previous resistance to Futa sperm, it starts in the male's testicles converting them to Futa versions which then floods the body with an endless tide of Futa sperm which triggers a drastic 18 month transformation

The male will completely turn into a Futanari genetically testing as the biological daughter of the infecting futa & the male's mother, with all physical traits morphing to reflect that inheritance

The face changes, with the skeleton morphing into a female shape with the larger thicker Futa bones, muscle mass increases, height shoots up 1 foot on average, cock size 2 -6 inches, Breasts form, a functional futa vagina develops, etc

The Personality will stay somewhat similar but with take on the characteristics of Futa psychology due to the physical changes to the brain

>Early symptoms include
Swelling of testicles
Growth of penis
Soreness of bones
Soreness in taint
Empty void feeling developing in lower abdomen
Smoothness of skin
Loss of body & facial hair
Increased sensitivity of nipples
Growth of nipples & areolas
Softness in pectorals
Muscle growth
Ability to ejaculate without prostate stimulation or futa vaginal juices
going into Rut state after smelling pheromones of recently impregnated female similar to that of Futanari

Changes will process over corse of 18 months until subject male has converted fully into a Futanari

>>11491489
Futas showing their biological superiority never gets old for me
>>11494238
tf did he do?

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>>11499611

>More and more Futas are being born

>Futas accused of taking male/female jobs, male/female partners, living in male/female cities, forming their own enclaves and subcultures etc

>Male/Female births going down, could it be an extinction level event?

>Males/Females in power plot to eradicate Futas in a bid to stop this from happening, some evil Futas also plot to wipe out humanity to accelerate this.

>A special all-Futa task force is established to protect Futas from persecution and protect Males/Females from dangerous Futa threats

>The X-Futas

>>11499973
>>11499974
Are these for ants?

All of you are gay cucks. Futanari should not be big muscle body builders that outbreed men.
Futanari are women with dicks. They should be like women, but they have a cock that is your plaything. Her penis could be bigger, balls bigger, cums bigger, or the opposite, smaller. She is physically weaker than a man because she is a woman and her sperm is impotent. Her dick is your plaything, it can never challenge your fertility. You are supposed to cum in her pussy and get her pregnant, she does not get anyone pregnant. You can let her fuck you occasionally, but if she does it too often, you need to correct her by claiming her pussy.
Her penis is only there to show how much she likes you, to be another part of her body she can give you, and to serve as another similarity you can connect with.

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>>11499611
Counterpoint, make futa unbelievably atracted to men, like giga-gooner style. Make them find the male body inherently sexual and physical contact with men to be very stimulating.

>the image of a 6'5 futa cumming handsfree just from being called cute by an average guy

>>11500544
Then go make a thread about it

>>11499971
>>11500005
Hot
2 things to consider tho
1: If IQ has the average person at 100 at average logically I would assume men and women would be closer to 100 (unless futanari introduction to humanity led to some other knock-on effects)
And 2: female futanarization, where a woman gets converted due to the rare incident like with men, or cases of futanari whose sperm has an unnatural ability to convert others into futas

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>>11499941
>>11499882
Thinking about reluctant horny futas again
Imagine them struggling not to use everyone in sight as cumdumpsters and see them as rapemeat, struggling to sate their bottomless fucking monster balls jerking gallon after gallon into the toilet, knowing it's not gonna be enough. Their instincts won't let them get away with just letting it all out into something that won't get pregnant. They know deep down a real hole would feel so much better, let their balls unload so much more.
Imagine the sheer insanity building up within them as they feel the flood of hormones working up from their balls poisoning their minds, promising them it'd feel so good if they'd just let loose and start using their inhumanly strong bodies for what they were built for, and impregnate every woman they see and break every man they know, and if they don't then they'll have to deal the the punishment of going out with foot-long pants-straining erections that make living politely amongst "normal" (inferior, worthless, fucksleeves-in-waiting) people impossible
Imagine one making the mistake of abstaining in the hopes it'll make her bad thoughts go away, only to end up going completely insane after a few days of nofap, and in her instinct-driven haze she becomes a captive in her own body, deliriously assaulting and cumflating her own mother until she looks 9 months pregnant with octuplets.
Then she feels her brother behind her, grabbing at her, struggling to pry her away, and when she instinctively kicks him into the wall behind her and hears him yelp in pain she briefly regains her senses for the moment, and pulls out... Just to feel the lust light up her whole being again and force her to choose between pouncing on her brother and using him to drain out the remaining flood of her cum, or going right back to filling up her own mother's horribly-stretched womb in front of him.

>>11499611
This is why I like >>11497034
Males impregnate futas who are too hung to fuck women. Futas impregnate women otherwise. EZ.
This is fiction we're discussing but you all forget that irl a dick can only be so big before a woman gets seriously injured

>>11500544
Better, make your own lore for it and post it here.

I personally can do either way on the body build of the futanari, they can be bigger and stronger, or just a normal sized woman with a penis, and it doesn't always need to be bigger either.

Thats why I made the thread, so people with different ideas of futanari lore and biology could chat and throw ideas around or fun with sexy textbook pictures. Lol

Actually I could see a balance, like 2/3rd of futanari are normal women with normal sized or smaller sized cocks/balls, but then the 1/3rd is like super pumped on natural hormones, bigger, stronger, huge cock, huge sperm, huge loads, like the jackpot.

>>11500516
Sorry, those were the best I could find at the moment sadly. The original thread they were from was even worse, still haven't found it.

>>11500553
...And now women are the ones facing extinction instead because the futas are taking all the men for themselves.

>>11500680
Oh that's a neat idea. I always wondered if futas would be able to safely impregnate females if their loads were so potential violent. Would be degrading to be able to fill of buck with your semen only to have to spread em for some smaller dicked guy cause you might hurt someone with your own seed.

Futanari probably have to use medical implanting to safely knock up females.

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>>11500610
>>11491489

1: I.Q. based on our scale, I didn't really have any ideas for the setting beyond that being the natural state of things & the higher I.Q. was just to ensure that these alternate humans could form a civilization, that this fundamental mix up of humanity's dynamic doesn't just gimp their ability to advance beyond horny apes in trees. Maybe they're more advanced than us maybe they can't progress beyond the Bronze age because they're just busy fucking each other &/or this 3 tiered sex structure doesn't provide the incentives to advance

2: I Really like Futanarization in general, but the rules for this specific setting I layed out in >>11499946 that the Futa Cum replaces the male Y chromosome with Futa's Z & a way to work a form of Futanarization into it would be restricted by that mechanism.
The goal was to make a consistent/practical system in which a 3rd Futanari gender could work

Normally I would like to fantasize about settings where magical Futa Cum (or scifi to the point of magic) transforms any adult who consumes it orally, anally or vaginally in the span of 15 minutes (rules & mechanics limiting TF from every sexual encounter with Futa applied)

>I started a Futa TF scenario in the Omnipotence thread back in January "The Goddess Futanari" that was supposed to include a tier/magic system that I never got around to finish posting

>Would that fit in here or is this thread more for speculation on Chromosomes?

Either way it seems like futanari are monsters at their core. I thought of how futanari are introduced as artificially created creatures made to solve the fertility crisis only to grow out of control as an invasive species. Futanari would only be genetically similar enough to humans to reproduce, but they are still their own distinct species.

This leads to men hunting down futas to kill them. This also leads to the end of women's rights as any woman can be a futa. At least in what few corners of the world men still have control.

>>11491489
>>11499882
>>11499611
(1/2)
I like to think of Futanari as the next step in human evolution taking the best traits of both genders and combining it to create the best species to colonize the stars. The hemaphrodism is only 1 of the different modifications, creating a new species of human, Homo superior, they also have elf ears as an easy visual distinction from regular human females without having to see them naked.

History and evolution

>over the course of the 21st century one thing was certain the disunity and chaotic nature of humanity to the point of the risk of survival of the very species itself

>There was some progress in space colonization but nothing compared to what it's full potential could be

>there was still petty squabbling among groups, the relationship between Men and Women were at their lowest with artificial wombs being the only thing keeping the species going, the natural birthrate is too low and the marriage and divorce rates are even worse, nobody wants to form families or even properly pear bond, they just have casual sex and most of those encounters are with companion robots instead of with eachother.

>An interest group of wealthy, powerfull men funded a genetic engineering program to create a better humanity.

>The human race will be reborn with as few inherent differences as possible.

>One Race (Take your pick i'll let you decide for your own, im white so im picking white for my fantasy)
>one sexuality
>one gender

>The futanari bodyplan (looks like a woman but has both genitals) was picked due to the perverse tastes of the wealthy donors and were engineered to be stunners.

>The male mind was picked as the superior longterm choice and so the futanari has the same brain and neural chemistry as a typical heterosexual male ensuring that they will be lustfull and less picky with a variety of tastes and fetishes

>>11501286
>>11491489
>>11499882
>>11499611
(2/2)

>Despite the female body plan they didn't want to lose the strength of the male body thus futanari have been engineered to have denser more compact muscles, stronger bones and can increase their muscle easier with a caviat that they burn through calories faster and thus need to eat slightly more. An average futa is stronger, faster etc than the average man and are about the same height if not slightly taller.

Psychology and Culture.

>Psychologically Futanari consider themselves as male or the next stage of the male gender that finally got rid off the need for the female sex and it's self sabotaging nature, they use male pronouns and have male names, despite the fact that biologically they are distinct from both men and women and in terms of appearance they look almost identical to women, they believe that since they have an identical brain to men they still count as men.

>They have very misogynistic views on women, believing that they are a ball and chain or parasites that drag men down, that they are the primary reason for the collapse of the birthrate and decline of civilization and that the only thing of value that they had is their ability to give birth something they were so unreliable at that artificial wombs had to be created and now that men can give birth too they have been made completely redundant.

>interesting despite the fact that they consider themselves as male+ they still dress androgynous or in typically feminine attire and don't have a gripe for futanari having more typically feminine interests. As far as they are concerned appropriating female fashion and other female dominated things is nothing more than another way to express their victory over the female sex. Or it could be that because the future is monogendered in their eyes they believe that they should be able to encompass all aspects of humanity wether something is masculine or feminine doesn't matter.

>>11501292
>>11499611
>>11499882
>>11491489
(3/2?)

Types of Futanari

>All Futanari have distinct elf ears that distinguish themselves visually from normal humans. Aside from that there are 2 types Natural type and Artificial type

>Natural is self explanatory, people who were born as Futa either from an artificial womb (gen 1) or birthed and fathered from other Futanari (Gen 2 and onwards)
They have a slight preference for more typically masculine interest and roles and a more masculine wardrobe but there are plenty of natural born futa that prefer the opposite, the ratio for natural born is 60% masculine 40% feminine.

>Artificial types are Men who have undergone through the process of Futanarization casting away their old body and ascending to the new superior race of futahood. Originally this process was done through cybernetics and brain transplant to a cloned futanari body from the man's DNA but now the process fully converts a male to a futa making them indistinguishable from a natural Futa.

>Artificial types are usually even more misogynistic than their natural counterparts but paradoxically are also more likely to be the ones who bear/mother children and are way more likely than natural futa to gravitate towards more typically feminine roles and interests as well as a more typically feminine wardrobe. The ratio for artificial futanari is 70% feminine 30% masculine.
If you see a ballerina futa or a rhythmic gymnastics futa or a housewife stay at home mom futa or a futa wearing a wedding dress in "his" wedding chances are they are more likely to be former men but not always.

>>11501314
Last one
Futanari society, relations with the other sexes

>futanarization is banned on women and a violation of that rule will result in the execution of the former female futa and the futas that performed the procedure to her.

>relationships between Futas and women are viewed with disgust by the vast majority of Futa especially the artificial ones and is banned by law punishable with death.

>Relationships between futanari and men while frowned upon are not banned nor are they seen with as much disgust by futanari society.

>Futanari exist in most colonies of the solar system as small but growing minority, but compose the entirety of the population of the orbiting oneill cylinder colonies around the planet Mars and any colony founded by the independent Mars government across the solar system.

>Martian and Futa is often used interchangeably but not all Futa are citizens of Mars, just the vast majority nor do they all believe in the misogynistic futanari masculine ideology of Mars, again just the majority.

>while Tourism to all sexes is allowed in order to migrate and gain citizenship of Mars and it's colonies you have to be male and undergo futanarization, women are banned and will be deported, men are allowed but don't have as many rights and privileges as Futas and will be encouraged to undergo futunarization to gain citizenship.

>Mars was chosen as the capital and start of the new race of the futanari man due to being associated with masculinity but it's also a great planet full of resources thus it was both a symbolic and economic choice

>The government is a republic with a limited franchise, a privilege that is given after a variety of tests and service to Mars, this service is not just typical millitary or scientific expenditions, giving birth to 3+ children can also award you the vote. The government is mostly dominated by Artificial Futa with a natural futa never ascending to prime Minister, some say intentionally.

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In my world, futas have all their sexual function occur with their penis, including penetration and pregnancy.

>>11501469
The male must penetrate the futa's penis all the way into her prostate. When she has a prostate orgasm, that triggers ovulation to occur, then the male ejaculates directly into her womb to fertilize the egg. Futas and males are usually cocks-matched couples, so the futa usually pairs with a male who has a penis long enough to enter her prostate to get her pregnant.

Because ovulation only occurs when they have prostate orgasms, they don't have periods like women, so their sex drive is active at all times like a male. They can also impregnate other futas, but this is considered "lesbian" to most of them, who prefer to have sex with males. Even though their penises also function as vaginas, their erections are firm enough that they can easily perform penetrative sex, though less firm than males'.

>>11501292
>They have very misogynistic views on women, believing that they are a ball and chain or parasites that drag men down, that they are the primary reason for the collapse of the birthrate and decline of civilization and that the only thing of value that they had is their ability to give birth something they were so unreliable at that artificial wombs had to be created and now that men can give birth too they have been made completely redundant
Uhhhhhhhhh based???

For my world, I have futas appearing alongside hung femboys as the result of some biological weapon, and it also happily turns out that they happen to be next step in human evolution.

"Trapness" is inherited from carrier genes that can appear in either chromosome, resulting in the followings:
> XX/XY: Normal human female/male
>XcX: Outwardly female, but with altered physiology that accomodates huge trap cocks
>XcY: Hung femboys
>XcXc: Futas
>XcYc: Hyper futa/femboys? (Not quite sure what to make them yet)

...or maybe I should throw this to the side after reading how autistic it could get above.

Any embyro with the carrier gene will instead develop into an egg, and will develop outside of the mother's womb. During incubation, any contact with non-human genes will affect development; so if there's a pet cat going around the house the child might get cat ears and tails or even certain mannerisms.

Side note, is there any good word for describing both hung femboys and futas as a whole? I use "trap" as a placeholder here but it's obviously not ideal.

>>11501484
Androgynes maybe? I mean it isn't the best one now, but if in-universe there was to be a term coined for the phenomenon to use in polite company and scientific papers maybe it'd be that

For the first several weeks of development, all human embryos look identical. Sexual differences only begin to appear between the eighth and twelfth weeks of pregnancy. The Y chromosome triggers the development of testes and the production of male hormones. Without this signal, the human body defaults to developing female anatomy.
But what happens when this biological blueprint is intentionally altered?
By the mid-21st century, unlocking the secrets of human development became a global obsession. Driven by a demand for designer babies, private laboratories began engineering children for superior height, strength, and beauty, and free from the hereditary diseases that had affected their ancestors.
This trillion-dollar industry exploded after governments lifted restrictions on human experimentation. The deregulation followed the creation of biological computers: living machines with enough processing power to simulate complex genetic outcomes with perfect precision.
In 20XX, this era reached a tipping point with the birth of the first perfect intersex individual. A wealthy Swedish couple paid hundreds of millions of dollars to engineer a child that transcended conventional gender norms. This child became the first human in history born with fully functional male and female reproductive systems.
The birth started a new trend. As demand grew and costs dropped, the number of these individuals, whom the internet dubbed futanari, soon reached the hundreds. This first generation was seen as a symbol of the elite. As children of the rich and famous, they were celebrities from birth. With their engineered bodies and high status, many entered the entertainment industry and became global sex symbols, driving the public's desire for intersex children to an all-time high.

>>11501523
However, a massive incident soon changed the world forever. On November 12, 20XX, the world’s largest fertility center accidentally distributed intersex genetic material to hospitals across the globe. No one realized the center held such a massive supply of these genetic make ups until it was already too late.
After an intense investigation, it was revealed that this error was actually a systematic failure caused by biological computers. The living machines were programmed to maximize profit, and they determined that the intersex phenotype was the most lucrative asset in their database. Because this demographic generated the highest profit margins, the computers decided it was the most cost-effective template for the entire human race.
By the time the first wave of births began, the change was irreversible. Hundreds of thousands of families around the world who expected a traditional child instead welcomed infants with the dual anatomy once reserved only for the ultra-wealthy.
Approximately 385,000 intersex infants were born as a result of this incident. While the raw number may not seem high compared to the global population, the concentration of these births in metropolitan hubs like New York, Tokyo, and London greatly impacted the local communities. In these cities, what was once an exotic rarity became a common sight, forcing society to adapt to a new biological reality.
For one, the term “intersex” soon faded from public use, and “futanari” became the standard term for these people.

>>11501469
As crazy as this looks, this is probably closer to the reality if they existed, minus the balls.

There is at least one mammal with something close to a futa, and that is Hyenas. The females have a penis like clit/vaginal opening and the males insert their cocks inside it during sex. The females have a preference for "gentlemen" males that have long social bonds with them over aggressive males and the girls show submission by becoming erect. They also fuck males and females with their phalus like clit/vaginas.

Kind of surprised this hasnt been fully explored. It would make for a good short story where human women have been crossed with hyenas to be used as like space Marines. There could be a twist midway where you find out they have clitcocks and they always fall for the guys of the crew that are sweet and friendly to them over the big macho marine dudes.

I wonder how buff spotted hyenas are to other hyenas. Their cocks are usually 90% the size of the boys. But they are more domineering than the men. I wonder how those different hormones levels and expression impact their appearance. Are they just athletic? Butch? Just taller?

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>>11501578
>>no Haibuchi Ena waifu

Life is stupid

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>>11501579

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>>11501582

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>>11501579
Shame she has so little fan art despite being cute with a huge cock

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>>11501590

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>>11501591

>>11501578
This happens to Polar bears sometimes. Either from polution or tumors.

Lol, another story idea. Toxic wasteland. End times. Women just start growing cocks

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>>11501578
Yes I definitely took inspiration from hyenas. Also the term you're looking for is "pseudopenis." If I remember correctly it's actually just a very long labia, and the actual vagina is still inside the abdomen jurt like normal mammals. The psuedopenis gets erect but it's not spongiform tissue like in an actual penis, so it's not firm and almost completely compresses during sex.

But Messy's drawings of a futanari getting impregnated through her penis was the baseline I was working with. I just went further with it and decided to remove all female external genitalia to combine all reproductive function into the penis. So it's a true penis with a combination vagina/urethra and a combination uterus/prostate. Testicles function as normal since they are true hermaphrodites. He also made the motherlode of all urethral sex mangas
https://nhentai.net/g/494987/

>Kind of surprised this hasnt been fully explored.
This is an extremely uncommon fetish lol. And even among those in the "community", most treat it as part of BDSM/S&M so it's a painful experience, draw retarded hyper-cocks, or simply don't really explore the concept and just treat the receiving penis as basically a texture-swapped onahole and only use the first half of the urethra. Or it's simply one part of something legitimately insane and disturbing. There's this one Mass Effect erotic story called "Shepard's Slavery" where one futa fuck's another's penis and it goes into great detail describing the different sensations and textures as the penetrates deeper until she breaches the prostate. It's unfortunately also tied in with a lot of S&M stuff I'm not into, but that part of the sex scene is fantastic.
https://www.hentai-foundry.com/stories/user/zedlav/24685/Mass-Effect---Shepards-Slavery/64652/Chapter-1/Miranda-x-Shepard

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>>11501469
>>11501629
Now THIS is the kind of autism I came here for! My jam is something like picrel, but I appreciate the effort and thought put into it nonetheless.

>>11501629
You know? My idea is similar to this, but i take bladder as 'makeshift womb'. There are no vagina, uterus, ovaries, whatsoever of female reproductive organs.
My idea is Gyne sapiens' sperm is 'hermaphroditic' by its nature, well... 'sequential hermaphroditism' if i put it more like that. When sperm is in partner's bladder, it will metamorphose into 'ovum sperm' which are eggs/ova in the form of slightly larger sperm, ovum sperm will "swallow" testicular sperm, fertilized into zygote, and attach itself to bladder lining.
They're still counted as hermaphrodites because any of them can reproduce, no male or female (gonochorism), and the sexual intercourse, fertilization, gestation, and birthing process are universal to the entire Gyne sapiens species!
Gyne genus are different from Homo genus, but they're convergently evolved to look like human females!

>>11501579
>>11501590
>>11501591
>>11501590
There's another futa girl in the side spin off about the bunny girl that works in a brothel. She goes to the bunny girl because she can't get hard.

>>11501683
What animal is she spliced with?

>>11497632
One X is suppressed, still having more genes active than than a Y does (which is why there is Turner's syndrome for people who are Xo), but it's not the same X throughout the body. Look at calico cats, the fur pigment gene is on the X chromosome, letting you see there is a different X active in bands across a female's body

>>11497866
So you couldn't have it be treated like an X.
As the genes on the Y is what drives male development and suppresses female develop, it would make more sense to have it behave like a Y. The difference would just be that the genes on the Z don't suppress female development. They would either need some unique gonads to produce different types of hormones, or their Z chromosome alters the way the hormones are absorbed (or both)

>>11501484
I like different genotypes having different phenotypes like this, but for a futa chromosome I think it should be:

XX female
XY male
XZ Futa (typically larger than women)
ZY Dickgirl (typically larger than men the Y chromosome still manages to suppress female development, resulting in technically being male, maybe you could have hyena like anatomy, a la >>11501469)
ZZ Hyper futa (largest, venus bodytype with muscle innately building if they just eat high protein diets)

Alternatively:
XZ Female / clitanari (has clit penis but no testes)
YZ Male / dickgirl (no women, but looks like a woman)
ZZ Futanari (the ZZ is required to double the gonads rather than just alter their function)

You could then include chromosomal disorders like ZZZ resulting in a hyper futa, or Zo perhaps appearing like a hung femboy

>>11501499
That already means an androgynous person
They use 'gynandomorph' to describe things that have male and female features but not hermaphroditism
If the point was to emphasize the penis, maybe just 'phallomorph', or a 'phandrogyne'
"This n'wah looking hella phandrogynous, all cute like that with a 2 foot cock"

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>>11501683
>There's another futa girl in the side spin off about the bunny girl that works in a brothel. She goes to the bunny girl because she can't get hard.

He says while not linking

https://mangadex.org/chapter/d170c43e-fba8-4f9c-9c03-0a981842a0d5/2

Its a mole woman. Supposedly they have dicks when not in estrus

>>11501710
I dont know, supposedly the Y chromosome is slowly going away and there is a way to trigger cock growth with just the X

>>11501741
I think that's from a clickbait headline.
To my understanding, it did degrade to reach its current state, but that left it with just the essential components. It's able to repair itself, and if it does degrade it's obviously going to not propagate more than one generation.

The trigger for cock growth on the X is the gene from the Y (called the SRY protein) ending up on the X. So that's why you could theoretically have a chromosome, Z (or really we should be calling it F, because Z gets used in some species), which has some of the features that will create male development, but also lacking the features to suppress female development and some additional features that would allow both to work together.
For instance, there is Anti-Müllerian Hormone which the male testes produce as a fetus to prevent the development of the Müllerian ducts, which turn into the uterus, fallopian tube, and part of the vagina.
The take away is that both ducts exist in people, the one to make male anatomy being the Wolffian duct, so it's not unfeasible that a sex chromosome could exist (or be made) that would create futa.

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>>11501741
Eggsplane please.

God bless AI for allowing incredibly niche fetishes to be visualized btw

all of this talk but really the main thing is futanari are superior so if futanari exist they should be out breeding males and males dying off. It seems the only valid evolutionary process that females being narcissistic would favor female bodies etc specially as technology progresses the need for male abilities becomes less needed.

>>11501794
>all of this talk but really the main thing is futanari are superior so if futanari exist they should be out breeding males and males dying off. It seems the only valid evolutionary process that females being narcissistic would favor female bodies etc specially as technology progresses the need for male abilities becomes less needed.

Who knows how it would end.

If futanari are like hyenas, they would have a preference for friendlier, kinder men than normal women. They don't reward typical negative oe positive macho traits. They dont care about a man being a leader, etc.

They might also not ejaculate sperm, just a thick fluid with no sperm. So they might not be able to knock women up.

Men will also fuck anything. Push comes to shove, I think most of them will sleep with a futa if she is hot

>>11501796
i'm thinking more evolutionary. Men are becoming more feminine overall and as you said "friendlier,kinder,gentler" its just how things are headed. It would logically be that futanari would be a thing as time went on.

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>>11501579
>>11501582
>>11501590
>>11501591
>>11501592

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>>11501629
>>11501469
That wouldn't make them technically female without male reproduce system?

>>11501801
>i'm thinking more evolutionary. Men are becoming more feminine overall and as you said "friendlier,kinder,gentler" its just how things are headed. It would logically be that futanari would be a thing as time went on.

Normal women aren't really attracted to that though. Its something they want after they are attracted, not what causes attraction.

>>11501807
>Normal women aren't really attracted to that though
are you crazy? they may not admit to this out right but just look if you looked at what your gf is reading/watching you'll see. Women might like aspects of male body parts but those could realistically be female body parts like say biceps a clearly defined weight lifting female can be close maybe not as big. However right now you'll have women who still like clearly male aspects but its trending away. If you purely look at things objectively each generation its happening. I imagine if humanity manages to survive long enough I could see futanari being a male substitute maybe even replacing females.

>>11501815

You're high

>>11501832
desu I wish Just be realistic for a moment and actually pay attention to fucking trends.

>>11501838
You go touch grass and actually pay attention to women out in public

>>11501846
I'm married faggot and she has many friends. kys

>>11501815
You're confused too, but in the other direction. Women neither like nor dislike physical stuff, but rather the associations around it. Nowadays women will tell you they like "normal, if a little athletic, but not huge muscles" and that's not really because they like OR dislike muscles: they don't want the insanity and violence that gym guys often have. They want a man who has his shit together, who makes stable money and will grow healthy and wealthy, and those are usually somewhat thin. Dad bods are also acceptable now.
Thus, and supporting your theory, I do think women will accidentally push men towards delicate effeminate bodies, not because they like the aesthetic, but because that filters for suitable, non-murderous, socially skilled mates. Honestly I think a scenario where most men are pretty much femboys or twinks (or try to be) is very viable if war and technology continue to make human muscle obsolete.

>>11501862
I agree with you for the second half. I think women have more preferences then they let on specially more superficial ones. Being realistic that is where it seems to be headed as one thing such as "kindness/gentlier" preference will lead to what you are describing. I could see over time women becoming more attracted to the futanari type aesthetic. You have to remember I'm talking thousands of years. I think we will definitely get some form of futanari if humanity survives long enough.

>>11501873
At the very least transexualism is far more accepted now, true. Lines might get more and more blurred.
Wanna hear something creepy? My friend, who is a teacher, met a sixth grader who is dating a girl and a femboy, and they know about each other. He specifically said "femboy". This is Latin America. You tell me what that could mean.

>>11501804
>That wouldn't make them technically female without male reproduce system?
No they also have testicles and create sperm. Their penises get firmly erect enough to penetrate other futa penises and females.

>>11501862
>but because that filters for suitable, non-murderous, socially skilled mates
I really, REALLY don't want to bring modern sexual politics into this thread, but your head isn't on right if you think women aren't attracted to low-impulse control, narcissistic, violent psychopaths. Like just look at who women flock to all the time. Normal women, not the marginal ones that occupy whatever weird social circles any of us frequent.

>>11501803
God I wish that were me.

I see a major problem with this discussion: the OP should have defined what we're talking about.

Several questions guide our thinking and objectives.

What are we changing? Are we altering the current world to introduce futa through new rules, or are we trying to do everything possible to make current human biology consistent with futa as a new type of human that has merged with current humans as a natural, gradual evolution?

The first option—that is, remaking the world—is simpler, but the second scenario is far more interesting.

We could also imagine, to reconcile the two, that they are isolated anomalies in the population due to disruptions during the pregnancies of women who have reproduced with men, but which may or may not persist as a separate sex within the population.
We could use the expression of the SRY gene and other regulatory mechanisms; we aren’t limited to using chromosomes.

This also raises the question: What kind of world do we want?
Will futas be humans like any others, living a normal existence undetectable among women to the naked eye? Super-intelligent, strong, and fertile beings who are determined to reproduce with as many women as possible and who dominate men, or a group of humans that appears sporadically in the population who simply have a high sex drive without dominant genes?

I have to admit that I'm one of those people who loves the idea of superior, dominant futas, and I also love the idea of stimulating women through scent in a society where they're in the minority but have women at their beck and call.

>>11502056
Well Grok, we're just kind of doing whatever we want within the guidelines of the prompt.

>>11502056
Governments start to discriminate against Futas by taxing them

I think futanari have doms and subs between them just like men and women do. Submissive futanari wives can be just as fruitful in bearing children as dominant futas.

I'm not contributing to the existing conversation, just posting my own thoughts.

In my head, futanari are genetic abnornalities to the tune of a one in ten million chance in birth. When they reproduce, the chances of what comes out are still the same as they've always been - male, female, and an exceedingly rare chance of a futanari.

And even then, the futa that comes to be is simply a person who has a genetic mutation on the X or Y chromosome, much like hermaphroditism. Unlike hermaphroditism, this results in the futa getting flooded with hormones of both male and female in the womb, and can lead to all of the "variations" of futa that we have now - cuntboy, dickgirl, balls futa, no balls futa, etc.

The result of this hormone washing and constant feed of hormones means that, on average, futanari have both of the "good parts" of both genders - dense musculature yet feminine bone structure, and assets that, in general, are bigger than the average.

This gives futa a mysticism and rarity, and ensures that humanity doesn't become a hellscape of men reduced to cumdumps unless they really want to be. I personally don't want to be.

I jack off visualizing I'm a futa with huge beautiful dick and voluptuous body with big hips tits asss

>>11502627
I like it

I write a lot of erotic fiction featuring futanari (for my own entertainment, I dislike web publishing for various reasons) so by necessity I had to create my own futanari lore so the stories were consistent. I don't really go into super autistic medical detail, cause I don't want to have to learn a bunch of anatomy and bio chemistry, so I keep the sciency stuff vague.

But the gist is that futanari reproduction effectively excludes males from the population by these three principles:

1. futanari can only beget futa or female offspring, regardless of how they reproduce.
2. female children born from a futanari parent (as father or mother) can also only beget female and futa offspring, even if impregnated by a man.
3. Once a woman has carried a futanari child, it is much harder for a male to impregnate her afterward, as her body tends to "reject" male sperm.

There's other notable traits as well, but those are the core aspects that inform the setting. The main thing I was trying to do was to create an alternate version of earth where futanari exist as an established presence but are not yet "common" or "open" about themselves. I imagine about 10% of the population is now futa, across the world, but the exact percentage varies a lot on a local basis, some places there's no futas at all, others they're a lot more numerous. In general, though, the public is only vaguely aware of them, and the media downplays their existence as well as the "inexplicable" decline in male birth rates. This is because I basically created a futanari Illuminati that controls the media, subverts governments, and utilizes international corporations to further their agenda of Total Male Replacement.

The secret futa cabal is a secret even from most futanari. The general futa populace are mostly the unwitting benefactors of the cabal's efforts. There's also a cult that worships "patient zero", the first futanari who is the ancestor of all others.

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I was reading this one where this one futa seduces a girl and then convinces the girl introduce the futa to her mother for a threesome. Standard setup, not unusual. You don't really think about media where everybody is a woman, unless the series specifically emphasizes the absence of men. But there was an off-hand line and I don't know if it was just a sketchy Japanese-to-English translation but it basically just implied "all the men died" as to why she was a widow rather than just her husband died/left, which is an insanely load-bearing line
>woman is old enough to have an adult daughter but still young enough to be impregnated
>all the men on Earth somehow fucking died within 1-2 generations and recent enough that its widows are still fairly young
>society is still functioning fairly smoothly with people having careers, and luxury/entertainment services, international travel, etc. and all that, despite the catastrophic loss of half of the species
>not even like a survival mode thing if humans can still continue thanks to futas being able to impregnate women
>futa/fem ratio is so heavily lopsided futas are expected to impregnate numerous women but "harem" ratio still maintained
At this point say fuck it there are no downsides to having a recent common ancestor.
The economics and social systems are more interesting. Sure it's reasonable that like most porn most futas would happily have sex with lots of beautiful women if they weren't expected to financially support them. Or polygamy/polyamory is normalized with everybody eventually being working adults and somebody can take care of the kids full-time whether it be a stay-at-home parent or subsidized daycare/schooling.
Maybe there's like a whole social program in place just to get the human population back up to speed that lots of women can just be mothers and not worry about money. And inversely futas have breeding quotas.

>>11502627
Oh that's actually a neat idea I never considered, the mysticism of Futanaris, like finding a unicorn.

Thats actually pretty overlooked all things considered, and it does solve some problems with them outcompeting males.

>>11501975
>attracted to low-impulse control, narcissistic, violent psychopaths
what I think is funny about this is that all of what you've mentioned can be associated with females. The only thing thats different is that they can't really act out the violence and its more directed internally.

>>11501784
it sure would be nice if it knew what all of those things are and labeled them properly though.
i'd rather have properly labeled amateur drawn diagrams than one that mimics textbook diagrams while failing to find the urethra, bulb of penis, and covering the entire torso and nutsack in a thin layer of erectile tissue

How much cum should a futa being able to ejaculate at once?
>>11501852
Yeah you definetively sound like a married faggot lol

>>11503028
ah you are an insecure faggot!

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>>11502729
Based futa supremacist, the only good erotica I've found with this theme is futareich:
https://www.literotica.com/s/futareich
But even that has too much futa-on-male-ass for my autism. I can't ignore the evolutionary behavioural incentives, and the obvious rational path of androcide that futa must take. If they truly were strong, powerful sex obsessed penetrators, logically they would see men as competition, and seek to supplant them, just like competing organisms in the same niche result in one supplanting the others.

Insistence that inhumanly horny and powerful sex beasts would somehow settle for man ass instead of passing on their genes in suppler feminine wombs is contrived. Any futanari that was genetically predisposed to futa supremacy would outbreed futa pacifist, or futa who love man ass, let alone men.

Question, we've had a lot of discussion on the genetics, chromosomes, body proportions, cum load size-

But what is the general thoughts for pre-pubescent futanari and younger? Are they like almost indistinguishable from boys at that age or are they still packing plantains in their pants?

>>11503081
I prefer when futa brains are just like men's jist more willing to try feminine things because they look identical to women.
Also another funny idea is that they have high functioning autism like behavior lmao

>>11503155
ADHD tomboy with traps mindset?

>>11500553
>Futas could easily replace men outright
>But like women they're biologically hardwired to be attracted to men and have an desire to birth their children
>Male x female and male x futa relationships are about equal, it's just a matter of the guy's preference
Male sissification and/or extinction event subverted

>>11503203
>>11503156
>>11503155
You could have a scenario where Futas are a specific kind of bisexual: they want to be fucked/impregnated and married to men, but they also want to fuck women
>futa and husband are chilling at the TV, both commenting on how hot Angelina Jolie was in the original tomb raider
>both have pin-up calenders of half-naked chicks in their garage
>Lesbians hit on Futa all the time, but they aren't nearly feminine enough for Futa to be interested

I know we talk a lot about male extinction. But I believe male x futa relationships might be the most stable. Futas can be women and they know what men want having male parts and thoughts of their own.

Does anybody have links to such comics/pages with stats and lore? I remember seeing such pics long ago but I've forgotten any name and titles

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I love Futa Netorase.

Male extinction is fucking crazy, what is wrong with you cucks? You are not responsible for the Atlantic slave trade! Just because you are a loser in real life doesn't mean you have to be a loser in jerking off!

Futanari are women, you idiot! You are supposed to fuck them! The penis can be big or small, but it doesn't matter it's just a plaything. It's just like a big boobs vs small boobs. Dick vs no dick, balls vs no balls.

She is not a man! She is not supposed to out breed you! Even if she is 7ft tall with muscles! In the end, she has a pussy, that you fuck!

>>11503379
Hey in my setting(>>11499946
>>11499971 >>11500005) Males provide a crucial role in the 3 sex breeding system, impregnate Futa's to make more Females & impregnate Females to make more Males

>>11503367
They just need to be Butt-Fucked by a Futa in order to knock up a Female

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>>11503379
I am a winner who fucks in real life, so I like to be a loser who gets fucked when jerking off. Role reversal is hot.

>>11503379
Most people who like the idea of that are usually also into A. feminization/sissy shit or B. being cucked.
Male extinction hinges on the idea that both futas and women would find men completely undesirable. I just don't think that's realistic.
Women would still be naturally attracted to men. I really hate having to defend women, but they are attracted to more things about men than just their dicks.
And as for futas, I am certain that plenty of them would prefer males over women as romantic and sexual partners. Surely.

>>11499971
>Futa the mostly dominant sex with an averge I.Q. if 180
An average IQ of 180 is insane. That is literal mastermind genius level. It is also very counter intuitive to a pornographic setting, because hyper-intelligent people tend to have great difficulty relating to the average person, and have a significantly dulled breeding instinct as a result.

On the contrary, I would actually give futas the lowest IQ of the three, but have them still be the dominant sex by virtue of their strength and charisma. That would better enthrall them to their basal instincts.

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>>11503396
>Futas have an oddly overdeveloped brain that can achieve insane degrees of intelligence but also debilitating levels of horniness and sex addiction
>At best it's used to remain semi-functional in society while still fucking like rabbits on viagra and devoting frightening amounts of brainpower to thoughts of, plans for, and desire to have sex
>Post-nut clarity is frequently chased but difficult to attain for futas due to their inhuman stamina and near-nonexistent refractory periods, many college-age futanari and futas in research spend time with designated "stress relievers" when possible to ensure they can get through the most important hours of the day with (relatively) empty balls, a (temporarily) sated libido, and (presumably) focused minds

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>>11503379
Extinction is the norm in evolutionary history. If two genetic lines compete in the same niche, one must go extinct. This is the competitive exclusion principle.

The male role is less burdensome. You efficiently spread your genes, but it has a lot of competition. High risk, high reward. Incels and chads. The female role imposes constraints on the organism but is more likely to procreate. Low risk, low reward.

Only one organism can dominate in each role. If Futa are to exist, you have three options:
Futa/Futa:
This is plausible. But 50% of the futa are losing out, taking on the more burdensome role, not as preferrable as:
Futa/Female:
Same upsides as Futa/Futa but none of the downside. Futa don't carry the burden of pregnancy, they outsource it. Women exist for futa in the same way chickens exist for humans.
Futa/Male:
Literally no advantage. You are in burdensome role, for what benefit? You'd only accept this is you were the weaker party.

Result: Futa outbreed men. And within futa society, futa-supremacists out-breed futa-pacifists or futa-moderates.

Seethe all you want, it's just math.

Arguing about male extinction is stupid.
>A futanari must spend energy developing and maintaining both ovaries and testes, as well as the hormonal pathways to support both.
>A specialized male can focus 100% of his reproductive energy on producing high volumes of competitive sperm. A specialized female can focus 100% on egg quality and gestation.
>In most stable environments, a specialist usually outperforms a generalist. If males and females are even slightly more efficient at fertilizing than futanari, they maintain a firm evolutionary foothold.
>Futanari would suffer from inevitable inbreeding depression or a lack of genetic diversity over generations.
In a real life scenario, futanari would be the ones that go extinct. It is not biologically efficient for mammals to be hermaphroditic. Which is why futas don't exist in the first place. Duh.
Futas can be whatever the fuck you want. Male and female roles with them can be whatever the fuck you want. Wholesome male x futa co-existence? Futa New World Order where men are slaves? Any scenario is valid. Because they're fictional. Just do what you like.

>>11503450
>Implying most fictional futas wouldn't be as repugnant as real wold futas (tranies) in terms of looks and personality.

>My ass just here trying to figure out why are so many want Futas to basically replace men while shitting on women

>>11503545
To be fair there are others who view futa as the next gen evolution of men, taking the best part of a woman (the body) and the best part of a man (the mind)
I mostly prefer futa x futa or when the setting is a world where only futa exist.

>>11503367
Thats... Actually kind of lovely

>>11503155
That didn't answer my question at all, it think you meant to respond to someone else.

It's not against the rules to talk about how a pre-pubescent futanari would be in body and culture, right?

>>11503471
Personally I don't like the Male Extinction scenario all that much cause I like Futa on Male/Male on Futa and I'd be out of luck if I was extinct.

But the point is, yes, WE ALL KNOW thay futas would in a realistic sense likely go extinct instead of males, there are reasons while hermaphrodites work in ship like some bugs, some fish, some frogs and some flowers, but not something as complex as Homosapien or even the lowest of Apes.

In all seriousness, there might be a mutation some day where genes shows in the Y chromosome start to be imitated by the X in some form and traditional XX females start to die out as women start being born with larger clits that over time develop into pseudo-penises.

We know Klinefelter syndrome is a real genetic condition where a male is born with an extra X chromosome so XXY instead of XY, but that causes infertility like 100% of the time. It wouldn't surprise me if that's where Evolution is trying to go but can't get it right.

So yeah, Male Extinction is a dumb aspect of the topic and futas would likely be just a little bigger than normal women, but some people like that sorta stuff and get creative about it. As lost as they aren't pushing like Muchin levels of Male Humiliation stuff the leave them be.

Personally if women had penises then men and women would finally have something in common and feminism would probably go extinct after they start installing urinals in women's bathrooms.

Then again I'm a sucker for a futa standing with the bois at a urinal and just ripping a hard piss with them. XD

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>>11503603
Dang, meant to post it with this image.

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Realistically, how many futa would need to exist to keep the population stable if futanarism(?) was a semi-recessive gene?
Or, what if only futanari could make futanari? What if some for of mysticism was required?

I'm working on a setting with Amazons and Amazonia, trying to figure out how they could rebuild an Amazonian population after a pretty massive calamity.
>Amazonian x Amazonian = Amazonian
>Amazonian x Regular Human = Half-Amazon
>Half-Amazon x Half-Amazon = Amazonian
>Half-Amazon x Regular Human = (Either) Half-Amazon or a Regular Human
>Half-Amazon x Mythological Humanoid = Either Amazonian or a Mythological Humanoid (based on the mother)
>Amazonian x Mythological Humanoid = Either Amazonian or a Mythological Humanoid (based on the mother)

Now, the Amazonians are biologically ageless, which does help a bit, but I still keep running the concept in my head and it keeps coming up with humanity outpacing them. If you raid the coastline to get humans to enslave and/or repopulate with, said humans can theoretically repopulate with themselves, as well, much more efficiently.
I'm trying to think just how much the setting would need some kind of eugenics or breeding program to ensure a relatively small-sized nation of around 60 would not just see the Amazonians vanish by weight of numbers or be supplanted in power by those they capture or antagonize.

Admittedly, yeah, they're 8-foot warrior demigoddesses and probably have a chip on their collective shoulders, but how harsh of a regime would they need to be before they have a sustainable population of full Amazonians, especially when their secret existence isn't so secretive anymore?

>>11503558
I wish that I was half as creative as some of you are, all I can think of is a clan of people cursed to be androgynous agender/genderless however they are capable of transforming into the opposite sex of the person they are attracted to or turn 18. While some members of the clan can look like fully biological women until they turn 18 at which time they can decide whether or not to become a true woman or a male at age 18. Then there are those born with both male and female sex organs aka Futanari.

>>11503353
>But I believe male x futa relationships might be the most stable. Futas can be women and they know what men want having male parts and thoughts of their own.
Based and correct. A world of men and futas with no women would probably be some kind of utopia where world peace has achieved and people have simply forgot what conflict is.

>>11503618
Not a geneticist but I assume if there's a recessive nature to it (thus: only likely to come up if not dispersed across large populations that lack it) you need to specifically have a stable, well-herded-together population of futas. I believe I recall 200 is the minimum population of humans needed for escaping costs and consternations due to inbreeding. I imagine seeking out outside partners from some source or another would be inevitable. Some probably kidnapped in raids, but also potentially just persuaded via political marriage stuff, or bought out from other slavers if they have enough to make the purchase (and don't decide to just kill them and get the slaves for free). Might even try offering their services to other rulers in exchange for easy access to partners for their next generation.

>futas have dicks 2-3x bigger than most men
>They are completely flaccid unless a dick of any size is inside their pussy
>Not a dildo, a dick
>Men typically prefer to be with women, women prefer futas, and futas prefer to sleep with men

Just imagine the romantic shenanigans.

>>11504190
So, futas are still ruled by their female reproductive systems rather than their cock and balls. I mean that would be kinda true, if they can give birth then they'll still have monthly periods.

Imagine they just can't get it when they're in their period week. They just got a cock bigger then all the guys they know by 2 or 3 times as much and for a few days a month she can't get it up at all, can't even cum strongly it just comes out leaky.

I like that idea, like, it means guys have a biult in advantage over futas, even a small one.

>>11503080
My futanari are less amazonian than most "futadom" settings. They do tend to be taller, stronger, and heavier than women, but within a ratio that makes them comparable to men, rather than superhuman. And there is still good old natural variation, so there are futanari that are on the smaller side, though on average they are "big" for women. In terms of dick size, though, a "small" futanari would be considered above average for a male. If non-micropenis men have a size range from about 4 inches to 9 inches (the medically attested natural range for men), the comparable range for futanari would be 6 inches to 11 inches. However, where men can occasionally be cursed with micropenises (3 inches or smaller), the opposite happens with futanari, and they are "cursed" with giganto-penises, (12 inches or larger, the largest recorded being 17 inches).

And yeah, I'm basically not interested in futa on male, I'm all about futa on female, occasionally futa on futa. So I created this setting as the back drop to a lot of futa on female stories I wanted to write, and I was tired of devoting the first few pages of every story to exposition about how/why there are dickgirls and how they work. Now I just go into the story assuming the rules in my "Futa bible" are in play, and don't bother to exposit more than the bare minimum that the story requires. If I find myself going into elaborate detail about some aspect of futanari I haven't committed to the bible yet, I copy/paste it into the bible then snip it out of the story and replace it with tidy, summarized references to assumed knowledge on the subject.

Keeps my stories a lot more lean this way.

>>11504102
>Might even try offering their services to other rulers in exchange for easy access to partners for their next generation.
I never even considered the mercenary option, nor the simple answer of buying slaves instead of getting them yourself.
I'll keep those notes in mind!

>>11504318
Well, from my understanding, they could also use another futa's dick.
They just need to say 'no homo' first, and they're all set.

>>11503885
They have a semen output of 325.31ml per day (they also have a far shorter refractory period than men) and have d*cks that are typically 6 ~ 7 inches when erect (However, since there are large individual differences in this area, there are some futanari who are smaller than men). 30C ~ 32G-cups are the average sizes that they come in and have galactorrhea and the ability to get pregnant. Their penis stays erect longer and constantly produces pre cum rich in pheromones that acts as aphrodisiac men and women. Usually bottoms until erect/horny and are typically treated as males. 5'3 ~ 5'11.5" is usually where their height falls between. In addition to the presence of external differences from women, Futanari's male genitalia also have characteristics that distinguish them from men's. The penis and testicles are more slightly more developed than men but typically hairless, generally Men typically produce 80 million to 300 million sperm a day in their testicles, while hermaphrodites produce about 8 billion to 20 billion sperm moreover, per day. They are naturally bottoms when paired with males and tops with women but sometimes this can be flipped. The can grow layers of feminizing fat with their breasts swelling up with milk and their pheromones going into overdrive as their prepares for "breeding." Despite being shorter and having less muscle mass when compared to men, their muscle fiber density is 100-times greater than that of an Olympic level athlete person and similar to other members of the clan their muscles continue growing throughout their life. They are considered to have physical power exceeding human limits, but still not on the level of male Clan members but still stronger than the average female clan members.

>>11504406 (ME) Conti.
There is next to no degradation of muscle fiber with age. They have wide, shapely hips, thick pillowy thighs and a firm, plump, and voluptuous bubble butt. Juicy and plump dick sucking lips with crazy head game. If the clans' women are handsome ikemen that when binding their chest can easily be mistaken for men due to their deep, husky tomboyish voice that can also just be deep and sultry (them being tall and muscular doesn't help either) whilst the men will either just have deep, baritone voices or a vaguely androgynous-masculine voice that shifts to feminine inflections sometimes. The men will usually look like muscular men while the futanaris can look fully female or have an androgynous face and voice with a masculine leaning toned body.

>>11504390
If two futas are in a couple and their periods sync up the they're both stuck unable to get it up for around the same time of the month. XD

>>11504406
>>11504410
Kinda hot. Like the idea that depending on their partner they may lean more instinctively into being the man or woman of the relationship, like their testosterone and estrogen levels kinda rebalance on if they subconsciously anticipating needing to impregnate a partner or be impregnated themselves.

>>11504435
Why thank you. I made that choice really to make it more PG-13 back when I was writing a book in HS. The idea was that the clan were cursed by the gods due to being effective assassins and godslayers, however, the curse that originally was supposed to prevent them from having more children due needing to be in love (and none of the clan members had biological genders) got loopholed because they could still find love. (There is a lot that I'm leaving out to try to not sound like I'm shilling)

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I've given some thought to futa genetics and I went with the idea that there is an F chromosome. (Basically a third Gender chromosome.)
The origin of this was a genetic mutation of the X chromosome that absorbed genes from the Y chromosome. (Explaining why Futa's are genetically appear to be women but have a fully functional penis. The F chromosome is mostly an X chromosome with added belts and whistles.)

Being a 3rd Sex Chromosome means we can explain some quirks of Futa penises.
XF is a Futa (Less Testosterone means relatively average penis)
FY has a noticeably larger penis and testicles due to the presence of the Y gene. (Less Estrogen) However Breast size is lower than average.
FF has a noticeably larger penis, testicles, and breasts. (Has lots of Estrogen and Testosterone.)

I even made a chart of all the Punnett squares. (Notice how there's potential for a YY pairing. It's basically a stillborn that doesn't form since you need at least 1 X or F chromosome.)

>>11504490
hot

>>11504490
Oh now this i like. Some of these talk above about a Z Chromosome is some interesting talk, but a lot of it is wall of text and I kinda started skimming it.

An F Chromosome keeps it simple and more consistent with the whole fictional genetics element and a Punnet Square is a good visual for weaker/stronger and bigger futanari.

Everybody wins. Do all females with Futa lineage have it as recessive genes then?

>>11503080
A sci-fi version of this pic would be great, imagine a sexy cyberpunk "dystopia" that is not quite really a dystopia if you ignore the fact that Futas rule over feminized men and bimbofied females.

What about the Z chromosome being kind of like a genetic parasite and attaching itself.

>>11504410 (ME) Conti.
The futanari clan members retain their prostates which results in them typically having a super tight pussy.

Since futanari have functioning male and female reproductive organs, they are able to have children with men, women, and other futanari. Furthermore, in futa x woman and futa x futa couples, both partners can get pregnant. While parthenogenesis (asexual reproduction) isn't normally possible for humans, futanari and their bodies are able to do so if they wanted to. Giving them the ability to reproduce without the need for a partner is entirely possible.

Both male and female genitals have urethras, and so does futanari genitals. Futanari can choose where their pee comes out.

>>11504607
I always kinda assumed that a Futanari would have their vaginal urinary track evolved out and only have the primary track running through their cock like males, otherwise they would likely piss on their balls if they weren't careful right?

Also I assuming that asexual reproduction is frowned upon cause it creates a clone which is would assume is at high risk of being born sterile or stillborn?

I would think they look for Males and Females is primarily for genetic diversity or else they'll start fucking cousins and stuff? Thats why the Viltrimites in Invincible couldn't repopulate their numbers after it dropped down to like 50, not enough genetic diversity in their gene pool.

>>11504693
They have special muscles that allows them to choose if they pee standing up or not, it opens when sitting with the testicles retracting enough so they won't get pissed on and closes when standing. However, I do like your idea a lot more anon.

They don't suffer the same drawbacks of inbreeding/asexual reproduction and the clan doesn't really frown upon it but it rarely happens due to circumstances (As there can be completely biological male and females in the clan not just futas).

Please refer to my original post >>11503885
>a clan of people cursed to be androgynous agender/genderless however they are capable of transforming into the opposite sex of the person they are attracted to or choose a gender once they turn 18 years old. Rarely, there are some members of the clan look like fully biological women until they turn 18 at which time they can decide whether or not to become a true woman or a male at age 18. Then there are those born with both male and female sex organs aka Futanari.
So more often than not the clan has outside marriages with the only couple being kissing cousins is the MC's mother-in-law and her husband who are distant cousins and were married for political reasons both in and outside of the clan.

One thing that I will mention is that all of members of the clan regardless of which parent came from the clan (Father, mother or a futa!father or futa!mother) the child will be born genderless, female!looking (they have breasts with a womanly silhouette) or a futa all with a 33.1 chance of happening.

>>11504522
>Do all females with Futa lineage have it as recessive genes then?
If you have the F Chromosome then you are a Futa. It has genes from both X and Y and it is what makes a fetus develop both a penis and vagina.

Think of the F Chromosome as a hormonal supercharger. It gives you the hormones needed to develop both sex organs and the endocrine system to manage them.

All Futas appear to be women. The difference is in hormonal levels and subtle differences.

XF is more feminine. (Less Testosterone due to X)

FY is more masculine. (Less Estrogen due to Y)

FF is the "Ideal/Super" Futa. (They are hormonally supercharged on both ends.)

(I didn't understand this question at first. But then I realized what you meant and I'm starting to warm up to the idea of XF being a normal female with a dormant F Chromosome. It might help balance things out because I think one flaw in my idea is that over a long time the population will trend towards Futas.)

>>11503080
>>11504490
any quality comic / hentai with a developed lore like this? Futa superiority and sperm dominance is so hot

>>11499611
I actually ran "simulations" back in 2017.
Initial population of 50, 24 XY, 24 XX, 2 futa.
Intercourse probability kicked in once 18+.
Equal opportunity of copulation between pairs of genitalia.
Small chance of impregnation.
Small chance of death.
Futa just kept dying out each and every time.
https://pastebin.com/i3mSi57g

>>11504836
Huh, interesting. Do the futas try to go after as many females at once or do they try to get pregnant more like instead of knocking up one partner at a time?

What's the general concise here? Do you guys prefer Futanari to be more Polyamorous or Monoamorous in their sexual activities?

>>11504881
Futas should be poly, dominant most of the time and superior to men in every aspect but not by much. I like to keep it realistic. If the penis size of men is 14-15 cms, futas average should be 35, the minimum length being 25-27 cms. I don't like when futas are 60 cms long, too much fantasy for my taste.

>>11503379
>Cocky man agrees to a threesome with a futa, thinking exactly how you think
>Sandwiches her with his gf, her at front, him at back
>Man pushes into futa's pussy with his small cock, and feels more pain than pleasure as the pussy squeezes it
>Meanwhile futa is plowing his gf's pussy, barely feeling him working at the back
>Man spurts a tiny, impotent spoonful of sperm into futa, knowing there's no chance of fertilisation
>He can only watch as futa fucks his gf for hour at minimum before depositing a massive, fertile load straight into her womb
>>11503511
Trannies are repugnant because they are mutilated, psyopped eunuchs.
Futas would be completly opposite.

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>>11503080
Futareich is unfathomably based. The dynamics are perfect. The third one is best by far.

And it also gives a good reason why futas would fuck men. Asserting dominance. An angry cuck is just a few proper fucks away from becoming a nice, defeated nanny.
Infusion of futa sperm should have visible effects on males:
>Inability to become erect, overall sexual impotence
>Men who come in contact with futa semen become nauseous and weak for hours
>Which affects brain chemistry as well. Futa semen can induce sudden depressive episodes, feelings of inadequacy and lack of willpower
Long term effects should be even more severe, if only to give a futa reason to really drill into a man
>Muscles atropy, fatty tissue reorganises into more feminine form
>Balding reverses, but other body hair stops growing
>Cock starts shrinking in size
>Psychological damage becomes more permanent too, depression deepens and most subjects report feeling undeserving of any love , affection and sex. Often insisting that those should be directed at futas instead

>>11503392
>Male extinction hinges on the idea that both futas and women would find men completely undesirable.
You don't understand at all. Futas are stronger, more aggressive and virile and have bigger cocks. Women can like men all they want, but it will be futa cock that impregnates them if there's even a sliver of chance.
And even if there's a man that could compete, nothing stops futa from destroying him first, and then taking the woman.

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>>11505347
Wow a lot of people here really like the idea of being cucked but a bigger stronger superior futanari.

Like I've thought about it before, and tried it in a AI chat RP but found it kinda stale and unpleasant directed at me rather than just reading it in a comic.

I like the playful taunting and teasing of a futa on Male couple more.

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>>11505347
Rather than male extinction, I prefer the idea of males being the equivalent to "worker bees," and futas being the equivalent to "drones." That is, males still do all the actual work to keep society functioning (just like in real life), while futas are little more than parasites who live off of men's work to primarily just fuck and reproduce.

>>11503471
What you are implying is something that would happen in a normal evolutionary scenario. Humans exist outside of that biological frame work. We can modify ourselves and push evolution however we want. Also how do you know some genetic anomaly wouldn't just make it work? Strange things have happened in real evolution.
>would suffer from inevitable inbreeding
Thats interesting and would fit up to how some alium lore is that these grey beings are us from the future maybe we all become grey sexless beings?

>>11505347
>>11505482
>>11503080
Futa harem full of breedable shemale (artificial womb)

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>>11505482
Yeah, that can be actually better. Just being snuffed out is far too merciful for boys.
There is something appealing of imagining them slowly wasting away, completly unloved and ignored. Slowly sinking deeper and deeper into depression and apathy as they powerlessly watch futa live their life to the fullest.

The problem is making that scenario stabile. Blatant futa supremacy leads to male extinction inveitably, but here's an idea.
>Futa cum results always in a a futa baby...
>...Unless multiple have cum into same woman around same time. Then the result is essentially a regular pregnancy resulting in boys and women
>Futas being hypersexual usually results in them keeping more than one woman around, and they often fight over women as well, so majority of pregnancies result in 'normal' babies.
>In fact, mainstay of futas are created by futa supremacist women who intentionally breed with only one (at time) them to keep numbers up
>On flipside, futas intentionally ensure normal pregnancies to maximize number of women to fuck and boys to bully and enslave
>futas rarely take part in child-rearing, so childhoods are mostly normal - women often recruit a boy to help as a sexless nanny so they can continue chasing after futa cock
>Once puberty hits however, girls quickly submit and become interested only in futa, while boys get completly sidelined to life of loneliness, misery and drudge work
>>11505424
There is no point in imagining futa unless you imagine them as male+.

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>>11505687
>There is no point in imagining futa unless you imagine them as male+.
Nope, I'm gonna imagine them as female+ and enjoy lovey-dovey male x futa scenarios and you can't stop me

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>>11505702
Ideal scenario would be making love with futa , you in her cumming and then she needs to ride a bit more. Then after she's done she fucks you until she's empty .
Almost a mindbroken mess , only to be brought back in the bath, you ensure shes clean and happy. Ending in her putting her already engorged penis in you so she doesn't make a mess in bed. But you have to put on a chastity cage, because you cum to quickly and she needs to ensure your cum in only for her. She will have wet dreams and you will pass out from the whole experience.

>>11505687
How is that Male+ exactly? By that logic a woman with a pumping strap-on and access to a sperm bank is a Male+ with extra steps.

You're literally looking at a Futa's penis only and not the rest of the body it's attached too.

>>11505702
See this guy gets it. Some of you have this weird idea that a Futa is equivalent to Males, the problem is Males can't get pregnant, Futas are just a Female with an added fully functional cock and balls. It is explicitly Female+ since they have a Female body.

If a Futanari was some Jock male with an added vagina then you could argue it's Male+.

>>11505742
My man~! Now that's the dream right there.

>>11505747
>It is explicitly Female+ since they have a Female body.
They will tell you it's male+ because
>All futas are 8ft tall muscular ubermensch who replace men outright and steal all the women because I'm a cuck-I mean, b-because I just say so OK!!
"No!"
As I posted earlier, futas can be whatever you want. You can like that scenario all you want but to act like that is how futas MUST be is insane.

>>11505754
see they need to feel ignored when they get cucked , to the point they don't want to even be worth anything

They can't stand women just being happy with one another, it needs to be because a guy is unhappy or getting cucked. They need to be the main character even when cucked !

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Feminizing/twink immortalizing futa cum should lead into at least one case of a boy being made a cumdumpster for a futa after she hits puberty and decides she wants him to be her wife
She tries to be gentle at first, but eventually she has to give in to instinct and start slam-fucking him full of her jizz several times a day

>>11505765
Based, boys are made to be turned into a futa's sissy plaything

>tfw your Futas are super horny, sex crazed dommes and are just slightly higher libido than men with the refractory period of a woman
I feel so left out of the conversation

>>11505867
Nah, go on, contribute all you want.

Everyone here has been hesitant to talk about futa pre-pubescense, i haven't gotten a clear answer of that stuff is just taboo to talk about even in the Porn channels, but its one of the few things we haven't debated yet. Lol

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Aside from their strong male libidos, I think futas should otherwise still retain their feminine looks and personalities.

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>>11505903
Agreed. A handful can be 8 foot fall muscled fuck monsters but the majority are cute and indistinguishable from normal girls aside from the huge musky cock and balls~

>>11505903
>>11505918
Can be both, sorta
Feminine, but can become frighteningly dominant and unhinged while riled up to the point of practically thinking with their dicks, almost like a libido-based Jekyll and Hyde

>>11505888
>>11504704 (ME)
Then I can continue what I started then because you gave me an idea.

>At 12
Masculine!Futa and Fem!Futa both look pretty much identical height-wise and visually with fem!futa clan members typically getting a head start in the bust department.
>At 15
Fem!Futa clan members start to look different with females hips growing wider than their shoulders and their busts going up at least 2 ~ 4 cup sizes. Their "members" are usually around 11 ~ 13.5cm and stay that size until second puberty at 21. They also begin menstruation with both of their sexual organs being fully functional. Their hair grows exceptionally at this age usually reaching their waist. Males on the other hand become more muscular and taller. The male cycle is Estrus which lasts between 2 to 7 days. Their members are 15cm ~ 21cm and stay that length unlike women more masculine leaning Futas don't have working uterus but womanly looking masculine!Futas do have working wombs but smaller members.
>At 18
Fem!Futa clan members look indistinguishable from biological females outside of being taller on average (5'9" ~ 6') and having Amazonian Venus curves (large bust, wide hips, thick thighs and big butts) with Masculine!Futas either looking like tomboys (the same as Fem!Futas but more toned and less curvy) or biological males (beards and chiseled jaws).
>At 21
They get hit with another growth spurt usually amounting to more defined curves and growing a few inches taller for Fem!futas & more womanly looking masculine!futa and Masculine!Futas look even more manly.

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*HITS PIPE*

I cannot think or comprehend of anything more cucked than having a daughter. Honestly, think about it rationally. You are feeding, clothing, raising and rearing a girl for at least 18 years, solely so she can go and get ravaged by a futa. All the hard work you put into your beautiful little girl - reading her stories at bedtime, making her go to sports practice, making sure she had a healthy diet, educating her, playing with her. All of it has one simple result: her body is more enjoyable for the futanari that will eventually fuck her in every hole.

Raised the perfect girl? Great. Who benefits? If you're lucky, a random futa who had nothing to do with the way she grew up, who marries her. She gets to fuck her tight pussy every night. She gets the benefits of her kind and sweet personality that came from the way you raised her.

As a man who has a daughter, you are LITERALLY dedicating at least 20 years of your life simply to raise a girl for a futa to enjoy. It is the ULTIMATE AND FINAL cuck. Think about it logically.

>>11503379
It is a shame this fetish seems to cross with a ton of cuckolds fetishists. I don't really see the appeal of not being able to interact with futa in a pleasurable way but they still get to interact with one of their fetishes I guess.

>>11506129
at least if the world building was more interesting than just what if all men were cucks and die.

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>>11506129
>It is a shame this fetish seems to cross with a ton of cuckolds fetishists.
> Doesn't self insert as the futa
Everything in the world is about sex, except sex. Sex is about power. What greater vision of power & glory is there than futa supremacy?

>>11506140
>Earth, 2196: the lab experiments were a success; humankind's century-long population decline can now be stopped. The Great Breeding has begun!

>>11496559
You probably get asked this a lot, but what the fuck are you talking about?

>>11506193
Wow, you know it's bad that I started this thread and it moved so fast that there's a whole middle chunk I hadn't read before.

But now I have new stuff I can reply too. ^_^

>>11496878
Yeah that makes sense. I know there was some talk lower down of a Spotted Hyena style structure but thats pseudo-futa if anything.

>>11497034
>>11497049
>>11500624
Yeah now these are the sorta setups I like. As much as I love a futa with a big knee slapper hanging between her legs, there's such a thing as Too Big, and if she can't get it inside a vagina with risk of serious injury, I could see the dynamic start to take shape that huge cocked Futas usually date men so, from a utilitarian perspective at least, they can still get pregnant by a man, since I feel like being impregnated by a smaller Futanari would be kinda demeaning if you have a fat cock compared to some other bitch, but I think a male would be more understanding of the situation. XD

But yeah, this sorta futa and male relationships is much more to my liking than the "All men get cucked by futas and die" mentality.

>>11504490
Remember the first thing that a zygote encounters is the Mother’s immune system and it will kill anything that is mutated beyond what it recognizes. So that YY probably won’t live long enough to implant let alone be still born.

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I like it when there is some reluctance with the futanari and their risk of turning out to be insane, mind-breaking, physics-defying, civilization-upturning rape demons
If it weren't for the anomalies between their legs, they might just be tall, thick, athletic tomboys who felt like they won the genetic lottery, but those gigantic sperm factories practically guarantee they'll be jerking off 3 times a day as soon as they hit puberty, and they'll have the libido of a hundred sex offenders bearing down on their sanity every day.

Look at Jeanne in the bottom row of pic related, for example. If the giant "FIRST" in that diagram isn't marking her as having the #1 most virile set of balls between all those women, it means she was able to overflow a gallon jug with her first cumshot alone, and either way, she's completely mortified by it. The gentle, purehearted farmgirl has a penis that could break your back and drown you in sperm, and even as she releases the thick, sticky evidence for her friends to measure, she can't help but feel shame for how insanely good it feels to unload gallon after gallon of thick, ropy jizz. I bet she and Artoria are even holding back some, desperately trying to control their urges to just empty their nuts and drown whatever's in front of them with their cum out of some misguided sense of shame or propriety, and even then their impossibly endowed bodies easily outshine and outproduce a dozen healthy men.

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>>11506379
Yeah I have to agree, its very cute and adorable when a very girly futanari with a huge fucking hog and big loud balls is embarrassed or ashamed by needint to bust a huge fucking load on the multiple times a day. X3


Now I did say World Building in the thread title.

Anyone wanna interject ideas on how culture or society might change to accommodate Futanaris and their general issues?

Like some businesses installing milking/mounting stations or giving them "Stroke Breaks" to take care of their issues for example.

I don't think you'd see many Muslim Futas cause they'd probably kill them, but I think black women would like swinging around a dick, and you think there would be any futa nuns?

>>11497034
>ALL futas have massive dicks on average making penetration impossible, so they're almost useless. Why this common genetic mutation occurs is a mystery
>As a result, they are simply women that just so happen to have huge dicks and still go after men like non-futas.
>The cock and balls are treated the same as boobs as a result, so bigger = better and fashionable garments are purchased to show off to the opposite sex
>Futas are hypersexual and need to relieve themselves often. They can do this (platonically) with other futas but doing this with a man has the same sort of value as sex, so traditionally it should only be done with a guy they like romantically
>Male x futa and male x female relationships are about equal, it's just a matter of a guy's preference

I enjoy hermaphrodites being very rare or artificially created. If hermaphrodites were very common then it'd just deminish the rarity and novelty of them. In fantasy worlds I can get away with them being their own race of creature with an explaination on why they can breed with humans.

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>>11503396
I think their IQ should be unaffected, but they could have different brain anatomy. They could have male-like brains in terms of average size, but the individual structures are all relatively feminine. Similar to gay brains, but entirely feminine rather than just some parts being feminine.
Obviously an enlarged pituitary to make them produce more hormones to be larger and more aroused.

>>11504490
The problem with that is what I mentioned earlier (>>11501710 Y is what drives male development and suppresses female [development])
So realistically, an FY would be some variant of male, because the Y chromosome would still do the things that suppress female development, and thus not allow a futa to form (being a male like a dickgirl or a hung femboy would make more sense).

However, if you're playing if you're playing into the idea that F is a merged X and Y, then you could have it has some sort of interaction between the F and Y each time. It would be interesting if it deactivates those genes permanently and clones some of its genes to it, so you have a -Y or L, which acts more like an X. While the F would contain the genes necessary to double the gonads (and make futa) the XL would be a clitanari (female with a clit penis that has no balls).
Then the L could have its own interaction with the Y, making a +Y or T which is similar, but doesn't feminise it as much, so anyone with a T is still male. They would be TLs would be hung traps while XTs would be dickgirls. They could potentially make an LL, but that could just be a null which is androgynous with only a cloaca (which is how the anus starts out), but because it has more genetic information than a Y it would still be viable.
I decided to have the T convert back to L when in the presence of an F just for the sake of brevity, because then you would have a 4th variant of futa as well as TY from them breeding with a male.

(probably mess something up, should have done this pragmatically rather than by hand)