The weights clank, the grunts echo, but the real action happens off the gym floor. A thick, veiny cock, ignored during reps, aches for attention. The gym rat, horny and spent, heads to the showers. Water pounds his back, but all he can think about is his engorged dick. He grips it, tight, and pumps, fast and hard, until he's uncontrollably spurting, his cum washing away down the drain.