Bobby, a horny gay med student, can't resist the allure of his muscular, straight classmate, David. In the name of a "physical examination," Bobby's eager hands explore David's firm, hairless body, tracing the defined muscles of his abs and back. David's taut ass is the pièce de résistance, and Bobby can't help but grope it, feeling the heat radiating from between David's cheeks. David, initially hesitant, finds himself aroused by Bobby's bold touch, his cock stiffening in his scrub pants.