>>5180831Oh wait, I just thought of one. Just say (albeit truthfully) that she needs to be hyper realistic to get across the uncanny valley. Say that it is needed to not give us the creeps and the jeebies.
I mean you'll be freaked out seeing a male synth without a dick bulge in his pants right? She needs the ass and pussy or else it won't feel right. Imagine knowing a hot girl born without a vagina, you'll have uncomfortable conflicting feelings inside while interacting with her. Social interactions with her will be more fluidly human and natural knowing that she 'can' be fucked, even if she won't allow it. It's just human instinct.