Makers
Close sisters who share a room divided by a curtain. Whenever the older sister's boyfriend stays over, they have sex while trying to keep their voices down because the younger sister is always right next to them. The younger sister would masturbate, using her sister's erotic sighs leaking from behind the curtain as fuel. Noticing this, the boyfriend has multiple orgasms with the younger sister, creampieing her while the older sister sleeps. Eventually, the younger sister begins to demand raw sex and raw creampies on her own.
