Number 72 from Swedish Erotica

John Holmes finds himself in the unusual role of a teacher explaining the function of the male sexual organs to a group of four horny coeds. His own teaching method, however, stresses the real approach, and he produces his own substantial equipment for their inspection. That does it for the girls, and soon all five are engaged in every kind of throbbing sexual activity they can dream up until the teacher is made to hold a group climax. Fantastic action.