The girls have a strategy that can't fail. They're going to seduce the teacher into giving them extra credit. They ask him to use the bathroom and when they show up they are dressed in erotic lingerie. The two girls sit on the man's side and pull his dick out of his pants. The two girls suck the teacher's big dick at the same time while they kiss each other. After fucking their pussies the man goes to fuck one of the girls' asses. They refuse, but the man tells them it's the requirement for passing the class. The man fucks the girls' tight asses gently at first and energetically afterwards