Facesitting and piss in the mouth until he can't anymore

The slave lies on the bed. I squat over him and sit on his face with my full weight while he desperately tries to breathe and lick my pussy at the same time. Then I have to pee, so I turn around and aim the stream of piss directly into his mouth. You can hear his mouth filling with piss and him trying to swallow it all. But the loser can't quite get it right and has to stop.