The teacher fucks his student in the bathroom

In the middle of the year i was commissioned to work with this student. she was behaving very badly, not to mention failing grades from her. but instead of helping her, the relationship between us changed from one moment to the next: she was no longer her master, but she fucked her everywhere. it was not a love relationship, it was something totally sexual between us. neither of them could stop. she was very demanding in bed. she wanted me to fuck her everywhere, and we even had sex once in the school bathroom. the sexual relations between us became dangerous and each day they were more risky.