GRMO-079 Observing humans, the stretching where skin touches skin turns into foreplay, and before you know it, they're having sex—friends with benefits.

A man and a woman who seem to be friends. The man is a trainer, and the woman has invited him home to teach her stretching. Apparently, they have had sex once while drunk, and their friendship has already fallen apart. It's only natural that two people like them would get aroused when engaging in physical contact in a closed room. Before you know it, hands reach for the crotch, and the solution to lack of exercise is taken care of through sex.