It isnt, what makes you gay is still fucking it once you know its a man.
Having sex with a person who looks like a woman isn't gay. Whether you know it's a man or not or has a cock or not...
Being gay is being attracted to men.. who look like men.. and not being attracted to women.
I'm attracted to women.. and am not attracted to men.. who look like men.
If you want to call me part-bi.. go for it.. I don't care and that's probably accurate. But calling someone "gay" for banging a ladyboy is stupid/wrong af.
If you guys think it's gayer to fuck a ladyboy vs someone like Renne Toney (a "natural" female).. well then you have issues / are full retards.