The room is filled with the wet, slurping sounds of flesh meeting flesh, amplified by the tight seal of the cock pump. The man's grunts and groans echo as he works his engorged cock, the pump's relentless suction driving him wild. He fucks the pump, his hips moving in a steady rhythm, his body glistening with sweat. The pressure builds, his cock swelling, his balls tightening. With a final, guttural moan, he explodes, his hot cum filling the pump as he rides out his intense, solo pleasure.