Humiliating The Slave During Workout

I order the slave to do a workout while I watch him closely - and humiliate him! I want him to be fit enough to serve me - and to make it even harder for him, Im going to sit on his face in between his workout. Hes already exhausted, so its much worse for him than usually! But of course, even thats not mean enough for my taste - so I tell him that I wont get up - if he wants to breathe, hell have to lift my full weight up in between! The loser has to fight for every little bit of oxygen!