Classmates (1986)

David Ashfield stars as a young art student who does some in-depth study of the male form to keep his grade-point up. His studies begin in a life-drawing class with a male nude and continue with a number of his classmates. He also has a passion for one of his professors, a man who is deeply attracted to Ashfield. Their scenes are charged with a high sexual tension that explodes in a masturbation session, a session that turns into an erotic fantasy for the instructor.