>>82126707 (OP)
For men:
>she looks so happy to have a sister.
Pussy envy. Agency always comes and at the expense of being undesired. By becoming a little girl, you lose agancy but gain inherent value without the taboo of faggotry getting in the way. A man enjoying becoming a little girl is also something he's going to view as degrading because it emasculates him, so him liking it and liking being valued excentuates the shame he "should" be feeling and the intense emotions produce arousal.
For women:
It's penis envy. Venessa is acting as a kind of rapist. The guy being uncomfortable and wanting to go home is the biggest part of this. It's that he immediately went off to tell "mom" on her and how his old life is gone(in a sense, he is pregnant, and the age regression can be a similar kind of dynamic a woman may experience after being raped and then choosing to live with the man and raise his kid and the whole world following suit as if nothing wrong has happened.) By doing this to a man, to an other, she can enjoy her shameful desire for degradation in an acceptable vicarious way. By being the one perpetrating the rape, she can avoid seeing herself as a victim while still indulging herself. By pretending to be "the man" she can play and walk through the role she finds impossible to stand otherwise. Think of how people will cry about a chess opening they hate and then pick it up themselves and play it in the way they hate the most because then they're on the other side of it.
This is sadly, also, often the root of pooner fake-male aggression. They're still in the process of stepping out of the female role, so they do shit in mind of how badly it will affect their partner, every psychological facit of it, knowing they can get away with it.
