With those features we would catch them having sex while still talking to us. If not then we would see them masturbating and then get the option to help them or let them finish in front of you.

Xiao must've been horny if he had sex with razor but looks like he's about to cum inside him. But to be honest, I wish they added a sex feature to genshin or at least a nude function so that we can see both xiao's and razor's dicks just flopping around or like see them hard. If not then a shirtless option so that we can see their muscles/abs.