We'll Bust his Balls and Face

Miss Mutiny and I take turns sitting on our slave's face and kicking his balls while he is being smothered. I add a little bouncing to my facesitting to make it all the more torturous, then Miss Mutiny and I both sit on him simultaneously with our combined weight. Her big booty and my extra weight make the slave suffer even more! Miss Mutiny enjoys her seat so much, she decides to stay put and not get up for several hours. How long will it take for the slave to go to sleep?