In the dimly lit, post-office hours of the medical clinic, a group of young, innocent-looking college boys gather, lured by the promise of extra credit. Their professor, Dr. Binx, oversees a unique 'medical examination' - each boy must produce a semen sample, right then and there. The room fills with the sounds of soft moans and the rustling of clothes as the boys hesitantly start jerking off. The doctor's presence, and the taboo nature of the task, only adds to their arousal. As the boys stroke their cocks, they begin to notice each other's growing erections, their eyes meeting in the mirror, sparking an unexpected gay awakening.