The rhythmic slapping of skin on skin echoes through the empty gym as the athletic jock vigorously jerks off. His massive, veined cock throbs in his hand, leaking pre-cum as he expertly milks himself. His body tenses, every muscle taut, as he nears his climax. With a grunt, he explodes, jizz flying from his cock, coating his toned abs and dripping onto the gym mat below.