During the test, four boys were passing notes and not paying attention. After class I keep them behind. After seeing the notes were sexual drawings of me I decide to teach them a lesson. I tell the boys that if they get the test questions correct I'll strip off clothing. Two boys succeed and two don't. I tell them as a reward the boys that passed get to do what they drew in the pictures. Being a teacher who believes in positive reinforcement, I allow all four boys to cum on my face!