He catches her touching herself and he was able to fuck her
Living with another person is generally something complex. Right now it has become more common and it seems that people have evolved to share, although the communists say that if the poor do not end, the world will end due to selfishness. This can be easily confirmed by seeing that this guy, who shares a flat with a young girl, when he catches her touching herself, the first thing she does is share her pussy with him. While she receives pleasure in her slit and has all the orgasms she wants, he also enjoys while he puts his cock in her and they both win. That without any government intervening.