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File: 3724830 (small).png (3.85 MB, 2656x2458)
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Reindeer Holiday Edition!

Pony (or any character) becomes something different. How, why and what happens next are all up to you.

This thread covers any "Character Into X" type of transformation, where any existing character becomes something they're not. This includes stuff like Rainbow Dash becoming a Griffon, Shining Armor getting genderbent, Applejack becoming a foal, Yona becoming a Pony, Chrysalis becoming slime, an OC becoming a plant, Sci-Twi becoming EQG Rainbow Dash, etc!

Want to see your little ponies deal with bodily change? This is the thread for you.

(Also known as /stfg/; title & thread tag is still in experimental stage due to the broad topic coverage.)

If you're looking for "Human to [Sapient Equestria Species]", visit the folks at /ptfg/ >>42866966

Previously on /cstf/ (aka /stfg/):
>What would the Mane 6 choose to become instead of pony? https://desuarchive.org/mlp/thread/42835691/#42835848
>Recalling all canon transformations: https://desuarchive.org/mlp/thread/42835691/#42835891, https://desuarchive.org/mlp/thread/42835691/#42837414
>Flutterdragon images: >>42835800, >>42836595, >>42837402
>Drinkponies: https://desuarchive.org/mlp/thread/42835691/#42840965, https://desuarchive.org/mlp/thread/42835691/#42859234
>REINDEERITY: https://desuarchive.org/mlp/thread/42835691/#42841548
>Cursed book vore TF (image & green): https://desuarchive.org/mlp/thread/42835691/#42844630
>Apple Bloom poison joke slug TF (unfinished): https://ponepaste.org/11635 (https://desuarchive.org/mlp/thread/42835691/#42848620)
>Sonicdash https://desuarchive.org/mlp/thread/42835691/#42873899
>Flutterbat images: >>42876921, >>42878082, >>42880101, >>42885891, >>42886194

Other Example Images:
https://derpibooru.org/images/74261
https://derpibooru.org/images/67482
https://derpibooru.org/images/67596
https://derpibooru.org/images/129256

Previous Thread: >>42835691 (https://desuarchive.org/mlp/thread/42835691)
>>
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What had she been trying to do again?
Twilight shook her head, trying to jostle loose the faint fuzzy feeling that had started. … when had it started? She couldn’t remember how long it had been since… What had she been doing? …
Oh, right. She had been casting a spell. … What had the spell been about? She was having trouble recalling…
Twilight shook her head again. Or, she got the feeling it was “again.” Hadn’t she just done that? The motion made her dizzy, and she stumbled in the fetlock high water. …water? Since when had she been standing in water? … Where.. was she? How… had she… gotten here?
What had she just been doing again?
Her eyes felt puffy, and her horn was tingling. She thought there must be a reason. Something that she had just done.. but… She couldn’t… remember.
Twilight’s legs felt weak. Wobbly. She was sloshing around the belly deep water as she swayed from side to side. Her head felt thick and fuzzy. Her horn tingled, spreading a numb, creeping feeling throughout her skull. She tried to raise a hoof to her head to rub at her aching horn, but she could barely feel it.
Her horn felt… small. Smaller than it should be. At least, she thought it should be bigger than that. Her puffy eyes wouldn’t focus right, but her hoof looked odd. It seemed… flatter. wobblier. the color was off. Twilight squinted at it for a moment as water lapped up her neck and into her gills.
… What had she just been doing again?
… Something was wrong. Twilight was sure of it. There was something that had happened, or maybe was happening? Would happen? She… She wasn’t sure…
Something was wrong…
What had she just been doing again?
Twilight looked down at her limbs. Something seemed wrong with her tail. Her… legs? Her… tail? Were her legs merging into her tail?
… She had… legs.. right? … She couldn’t remember…
…What had she just been doing again?
Twilight felt her face distort and stretch. her wings… her fins… her wings were merging into one dorsal fin… something was wrong… was something wrong?
Something was wrong. Twilight was sure something was wrong. She couldn’t remember… she couldn’t remember…
That was it. Wasn’t it? She couldn’t remember. remember… remember what? What had fish… what had Twifish… what had Twilight forgotten?
Twish’s eyes bulged as she strained to remember… to remember…
What had Fish-light been doing again?
She… it… she… had to… remember something. Something… what had she been trying to remember?
Tish had been trying to remember it’s name! It could remember that! It was… It was…
Fish couldn’t remember.

What had fish been doing again?
>>
>>42897264
Cute!
>>
>>42897321
twilight would be the smartest fish around the world!
>>
>>42897321
why does this feel me with unimaginable horror
>>
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>>42897264
She teaches a school.
>>
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>>42897321
Kino TF horror.

>>42898341
>pic rel
>>
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Reposting the Reindeerity image from last thread because header theme.
>>
>>42899336
so floofy, love her so much!
>>
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>>42898756
The artist is really good at it, even if it is his depraved fetish.
>>
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>>42899336
>>
>>42899618
That reminds me, for a little while now I've had this idea in the back of my head for an EQG fic...

Basic idea is that almost all of Sci-Twi's friends have (by accident) completely screwed over a research project she was using to get a prestigious scholarship. Meanwhile, the Dazzlings are looking to try something different than their usual "popular band" gimmick (which they've done in decades past under various identities), and instead want to run a petting zoo where they can do daily music shows. So, on learning of Sci-Twi's situation, the sirens end up approaching her with the offer of funding and lab space, suggesting she get revenge with a very *specific* experiment: turning her friends into the dumb animals they are. Twilight would get her experiment and revenge, and the Dazzlings would get some "temporary" animals for their petting zoo. Twilight agrees, and tricks her friends into participating using a sneakily worded contract, after which they undergo slow, multi-week transformations into the creatures that Twi thinks are most ironic based on their personality and/or way in which they hurt her.
For Rainbow Dash, that means becoming a snail.

(Also, I'm declaring that EQG to non-sapient creature is valid in this thread, since I don't think /ptfg/ covers that. IIRC /ptfg/ only covers EQG to fully/speaking sapient Equestrian species.)
>>
>>42899618
>>42899846
bro she's crying and screaming that's not okay
>>
>>42899989
Ah, but characters dealing with a visceral, uncontrollable, growing sense of *wrongness* about themselves is what makes the story juicy.
>>
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>>42899989
Don't get caught slacking.
>>
Merry christmas!
>>
>another tf general
great....
>>
>>42897264
Why the fuck you keep duplicating threads? Filly thread is for all fillies, not "lewd fillies only" as you claim. /ptfg/ is for all transformations, not just human ones like you claim. There no need for additional threads because your premise for creating them is false to begin with. All content already belong to their respective threads.
>>
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>>42897321
>>42899618
>>42900231
gotta love atcpony's stuff, even if it is just straight up body horror
>>
>>42901468
First of all, I'm not the same anon who does Safe Foal Work.
Second, as far as I know, /ptfg/ *is* exclusive to human-to-[sapient equestrian species]. Pretty sure I even directly asked at one point.
If they aren't exclusive, then they should probably reword their header post to indicate it's for all transformation in general.

That's all I'm gonna say in the matter.
No back to regularly scheduled body horror.
>>
*Now back to regularly scheduled body horror.
>>
>>42898288
Haha wait until someone you love develops dementia or Alzheimer's lmao
>>
>>42901555
Just ignore the troll.
>>
Practicing spells for decorating her house one night, the next morning Twilight Sparkle was surprised at the results... All these inflatable reindeer in her room! How perplexing, there were hints that reminded her of something about them, but no, they were just simple decorations.

Here we have the mane 5, sans Twilight, transformed into squeaky identical rubbery reindeer! There is some TG involved, due to the horns and bulges, as well as reality transformation, because of the power of Twilight's magic. Poor Twilight has no idea of the fate that has befallen her ex-friends, now plastic reindeer, perfect to decorate her house over the holidays!

Rarity and Applejack were the first to be transformed, they're standing tall, taught with air as they squeak and wiggle slightly. Rainbow Dash and Pinkie are feeling the last few moments of their former lives slipping away as they twitch and fondle themselves, whilst Fluttershy has deflated, crumpling flat under the other reindeer's hooves.

A bemused Twilight, not recognizing the toys, was confused as she came down the next morning, hope the reindeer enjoy their new lives! Their painted on grins should help with that~
>>
>>42902351
Do you think Twilight would eventually notice with the similarities and find out?
>>
>>42902532
Twilight? Yeah.
She's aware enough to realize within a few days.
Unlike Applejack, who might genuinely never realize what happened if it was her fault.
>>
>>42897264
I want to come inside Reindeer Dash.
>>
>>42902351
>>42902532
>>42902647
>twilight realizes after a few days
>she turns everyone back to normal
>except one
>pinkie is missing
>anon hears some rumbling in the night
>he finds an strangely familiar inflatable reindeer with a prominent ass and bulge along with a note on it saying “If you use this, you’re gay”
>he swears he hears soft chuckles coming from it
>>
>>42902727
>Anon proceeds to trip, fall on top, and pop it under his weight.

>>42902351
Also, FYI, female reindeer have antlers too.
>>
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Plane Rainbow Dash fits well
>>
Let's see...
>Mind control
>Mind rewrite
>Mind degradation
>Mind destruction/cessation of existence
>Mind is intact, but have no mouth to scream
Man, why TF fags are so fucked up? Is it too hard to ask for PHYSICAL transformation with a few minor things like a new sleep schedule and stuff. There's no point in transformation if your character is mentally no longer there to experience it.
>>
>>42903233
Last one is technically part of what you're asking for.
But also, I do agree that it's a bit boring for the characters' minds to just completely shift to their new form, with no memory of the before.
Part of why I like TF for the horror of "THIS ISN'T HOW MY BODY IS SUPPOSED TO WORK" that characters must go through.
That said, I think gaining new instincts is fine, so long as the memories and conscious sense of self remain in-tact.

For example, if Scootaloo started turning into a timberwolf, it's more fun if she knows something's wrong, and has to hide/fight her own biology.
It's also interesting to see moments of total impulsiveness, where's she's overwhelmed with wolf instincts and can't muster the mental focus to avoid giving in, but is still coherent enough (at least after the fact) to know she's not behaving normally and subsequently react in some way.

It's conflict in the most extreme way, which is Grade A story fuel.
>>
>>42903313
Unless you're turned into an insect, instincts are very subtle, especially for mammals and birds ("play" exists specifically because instincts do not provide enough and you need to learn in a safe environment), and you're already an adult. Some people depict "muh instincts" as a split personality disorder with evil self or something, which is just plain wrong.
Humans have built-in fear of snakes, does not stop us from keeping them as pets.
>>
>>42903042
She'd be a good plone!
>>
>>42903042
fits her
>>
>>42905330
lol
>>
>>42903042
She's ready to secure Equestrian oil interests.

>>42905330
The expression on her face almost implies the wings just suddenly changed mid-flight.
>>
>>42906470
>implies the wings just suddenly changed mid-flight.
Would the Jet Wings make her even faster which she clearly noticed?
>>
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Flutterbear!
>>
>>42907692
Looks like she can't bear it any longer.
>>
>>42907184
Almost certainly.
>>
>>42907692
She almost looks annoyed.
Was Twilight being careless with spell testing?
>>
>>42909673
she got distracted by Spike tripping and dropping some prized books on the floor and accidentally misfired the magic beam she was preparing to test which hit Fluttershy.
>>
Why'd the second plone Dash image get deleted?
>>
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Flurry Deer.
>>
>>42907692
sad bear :(
>>
>>42910966
I guess we figured out her future.
She doesn't become the next Crystal Princess.
She actually journeys northward, finds the gift giver reindeer, and eventually chooses to join *them*.
Of course, some anatomical changes will be necessary to utilize the special magic.
>>
>>42912127
Princess of the North Pole?
>>
>>42910966
Fits well with the Crystal Empire being always cold and frosty!
>>
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>>42897264
>>
>>42913641
Very cute sunset kirin!
>>
>>42912585
YES

>>42913641
Sunset feels like a perfect character to be a Kirin.
Fire themed, firey personality, flaming rage...
>>
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>>42905971
>>42906470
>>42910705
Was on Derpi so I'll just reupload it.
>>
>>42914733
very nice
>>
>>42913641
i love this lol
>>
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>>42910966
Lots of mane 6 deers, have another before the New year!
>>
>>42916102
Deer dashie unf
>>
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Dashie is a silly reindeer.
>>
Post more deer
>>
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>>
Happy new year!
>>
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>>
>>42918020
Fabulous deer.
>>
>>42918020
Very nice for the most part, though per the rules of countershading, the top shouldn't be light.
Also I hate how her antlers look like they're just glued onto her forehead instead of growing out of it.
>>
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>>42916997
I would rape this deer so hard
>>
>>42919703
She looks like she's panicking internally so hard.
Poor Flutters doesn't know what to do now.
>>
>>42919703
rats rats, we're the rats
>>
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>>42920067
>>42920459
flutters is feeling less panicked now
>>
>>42921545
Well pbviously!
>>
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>>42920950
yay!
She will now go make a gourmet salad.
>>
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moth
>>
>>42922591
Flutters is pretty cute here
>>
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Seaponies are cool.
>>
>>42923352
>Pufferfish Spike
even in seapony he gets shafted worse lol
>>
>>42903042
>Rainbow Dash
>represented by one of the slowest supersonic fighters currently in service
>>
>>42923873
kek wonder if the artist did that intentionally or just picked a unfortunate choice to base the plane after
>>
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>>42924511
oh my
>>
>>42923825
After all the crap he had to go through during the series, Spike absolutely deserved that gigachad bod he had in the finale.
>>
>>42922591
Fluttermoth is even more fluffier!
>>
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Have more deer Rainbow Dash.
>>
>>42925666
thanks satan
>>
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trixie birb
>>
>>42926283
Cursed.
>>
>>42926283
Trixie is not a pigeon!!!
>>
>>
>>42928327
Boop!
>>
>>42928327
Watch out Sweetie Belle!
>>
>>42928327
Why Starlight Glimmer as a changeling? Interesting pick really
>>
>>42929903
why? why not?
>>
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>>42929903
have another changeling but it's fluttershy instead
>>
>>42930877
>>42930877
>>42930877
>>42930877
For you.
>>
>>42932109
pretty
>>
>>42932109
Facinating!
>>
Boop
>>
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Booping Spitfire Griffon!
>>
>>42933959
I love her.
>>
>>42935013
Cursed as hell
>>
>>42936104
would
>>
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Rainbow Duck
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>>42937001
quack qauck in 10 seconds flat!
>>
>>42937001
give her a wee chunk of bread
>>
>>42937927
i find seals cute and this fluttershy seals is cool
>>
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>>
>>42939908
Searching the mysteries of the Sounds of Silence!
>>
>>42939908
she will find many ancient kirin treasures
>>
>>42939908
Darling Do looks really cute as a kirin
>>
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>>42941962
honk honk!
>>
>>42928327
>>42930532
How did this happen to them, and why are they unreformed?
Especially curious on why Starlight's unreformed, since she seems to be getting along with Sweetie just fine.
>>
>>42942703
I do imagine its sort of like thorax before he took the hive, they still have that changeling instinct but fluttershy would be too kind to ever have that moment and I suppose Starlight would be the one to attempt to reform herself.
>>
>>42933959
That, sir, is a hippogriff.
>>
>>42943465
ah oops
>>
>>42944098
Angel Bunny would be happy.
>>
>>42897264
I want rainbowdeer to sit on my face
>>
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>>42942703
Have some more changelings of the mane 6 kind
>>
>>42944498
this but flutterdeer
>>
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>>42946355
A party with fire involved? It'll be quite crazy.
>>
>>42946355
Cute Pink Kirin
>>
>>42946355
You don't have to? what?
>>
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>>42947930
Cutie Mark Crusaders go underwater?
>>
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I guess Aurora, Bori, and Alice were sick and needed stand-ins...
>>
>>42948595
The Cutie Mark Christmas Reindeers!
>>
>>42948595
Now that makes me interested to see how MLP:FIM would go if the ponies were deers instead.
>>
>>42948595
cute deers
>>
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flutteryak lol
>>
>>42952308
Quite cursed.
>>
>>42952308
Does anyone like the yaks at all?
>>
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>>42952308
*gently smashes leaf*

>>42952991
Yona is cute.
Honestly I think Silver Quill has a point that it's really just Prince Rutherford giving the Yaks a bad reputation. Dude is genuinely too incompetent to rule.

>pic rel
I kinda wish this episode turned the dial up a bit further and had Yona *actually* trying to turn herself into a pony or something. The episode was cute and somewhat memorable as is, but Yona actually attending the dance was more forgettable (had to look up images to verify that it was just her acting awkward and crashing into a table). Having her be clumsy over a *different body* and going to the most extreme ends just for Sandbar (who could've been able to be *way* more weirded out) would've made the scene at the dance have far more of a punch.
>>
>>42953350
Yona as a pony is very cute!
>>
>>42941962
Is celestia here geese or duck?
>>
>>42953916
Geese, I think.
>>
>>42937001
Heh, rubber duckie.
>>
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Lyra seal
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>>42955703
>Sealyra
heh, that name fits.
>>
>>42955703
But that's just a G1 style seapony.
>>
>>42956508
ah right oops
>>
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>>42957068
I see she's trying not to be washed out of the water spout this time.
>>
>>42957068
Those clothes make her look simply adorable, love it!
>>
>>42897264
i love these deer pony designs
>>
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dolphin cadence
>>
>>42959074
Dolphins? Odd choice, really.
>>
>>42959074
funni
>>
>>42957068
Rarity as a spider would be cool to see her make clothes easily out of silk.
>>
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>>42959074
>Princess of Love
>as a dolphin
>>
>>42959074
would
>>
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Rainbow Dash as a dragon would have a large horde of junk in 10 seconds flat!
>>
>>42961203
>Wii
I just feel older now.
>>
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Thoughts on lamia ponies?
>>
>>42962178
>Wii
>nothing of value
Another day, another Anon who is objectively wrong.



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