>>43484397
To date each other, live with each other, love each other, to have sex with each other, be on the same wavelength, to look after the female tribeswomen when the straight trade hunters and gatherers are away and the tribe is vulnerable, to be men in love with men, to probably maybe still provide closure to men he has no female mate and that prehistoric man is bi and not gay so he won't be lovely and lost in life, to also be outside of normal traditional reproductive system hierarchy and to bring more flexibility to society

To be the orientation that actually likes men

>men kissing
hngggh

Its a alternative reproductive tactic, Women think its hot so it increases the reproductive success of low value males and this happened so long that eventually gay genes become relatively common

Gay males promot their siblings genes by adding a childless perma unc to be the tribe's extra hand. Turns out thats enough. Source: a paper i read