I've got my patient here, and I sit on his face. I take away his ability to breath on his own, I control that. Then I decide to really tempt and test him. I sit on his chest, full weight. My ass pressing hard onto his chest. He struggles to even get a little bit of air. But here's where I find my amusement: I pull out his cock and stroke him. He has to chose the pleasure of me stroking him with the pain of me sitting on him, or tapping out. Will he cum? Yep...