My slave in apnea for me

After 2 hours of punishment in the closet, my slave is allowed to crawl to me. First he has to clean my shoes and is kicked with my heels, slapped and spat on. Then I do some breathe play with him. He has to hold his breathe longer and longer to amuse me. And he try it. Of course he could breathe between my fingers if he just want. But as a good slave he tries to make me happy. He also gets to feel my feet on his neck but he's never serious without air and he stay fine the whole time. After I've had enough fun with him, I humiliate him again with spitting and foot slapping. Thanking me he has to worship my feet before he's send back to his dark closet.