In the Russian school an additional lesson for the student quickly turns into a lesson on how to be useful to know the rules of sex. The teacher sits on a school desk and invites the student personally feels fat cock of the teacher. Pupil agrees, hoping the teacher will put him only good grades in the subject. He wants to continue this hard bang and lies down on the desk, and begs the teacher to fuck him again. The good student, thought the teacher, deeply penetrating in the pupil.