Mandy Marx - Hidden Vibrator Detention

Totally my fault my bf got detention! So I want to make it fun even though he has to be locked up all afternoon. I've attached a remote vibrator on his cock. Nobody knows. I have the controls. Except, the thing is really good, he cums really fast and big. For some reason I decide not to stop. I keep playing with the controls. He can't do anything. It makes me feel powerful.