Art class quickly escalates into wild orgy

Today's subject in the art class was about drawing nude both men and women. Teacher even provided them with both naked man and woman! Reason for that was to make it easier for the students to do the drawings. It seemed like a great success all until they started to misbehave! Students were easily disrupted and quickly lost the will to do what teacher tells them. Instead they started sensually kissing and touching each other! But that was just the beginning! Soon enough they started banging like crazy in the middle of the classroom and the teacher got drilled as well!