>>71187
Anon, nobody in their right mind would find their birth mother attractive, and same goes to their sister. Because when you spent so much goddamn time with them that you treat them as a family by blood. You can’t even seem to be sexually attracted to them due to the amount of time spent together and so find it gross to even see them naked. My sister is probably the spitting image of a ‘Stacy’ (except maybe for the anorexic part) with some ‘quirky’ interest here and there, but never in my right mind would in ever see her as a ‘woman’.
Unless maybe you’re too fucking thirsty or a filthy degenerate, there’s a good reason why evolution looks down upon of same-blood marriages. The ones you see in animu / mango / doujinshis are just that, 2D