In a clandestine gay clinic, experienced doctors take on the role of mentor, teaching young, smooth twinks the art of gay sex. The old men, with their weathered hands and hungry eyes, stretch the tight, hairless holes of the eager boys, demonstrating various positions and techniques. The twinks, moaning and writhing, learn to take every inch of their instructors' thick cocks, from deepthroating to riding them reverse cowgirl.