I am incredibly curious to see how much this slave is willing to endure for me. So far I have experienced as only a wimp with other mistresses but with me he must make an effort! I start carefully and tap him a few times in the face with my hard shoe sole. First lightly, then more firmly! I get on his chest and see in his eyes how much stress he is under for me. So much that he cant get a sound out from the effort and concentration. Because I like this, I continue to trample on him and make him lick my shoe soles clean while I stand on his chest. But this isnt enough to prove his resilience to me. Next I will squeeze the air from him and sit down with my jeans ass in the middle of his face. Lets see if he can prove himself now!