It's time to test my new slave's endurance. Do you think you can handle it? I sit on his face, squeezing, punching, and slapping his balls as he is smothered underneath my ass. I bite his cock and balls. I stomp on them, knee them, and kick them. In between pain I give him brief pleasure by stroking his dick, and then I hurt him more. I build the intensity of pain and pleasure as he gets closer and closer to cumming. Finally, during his orgasm I punch his balls, with each punch spraying massive loads of cum all over him. You're next