How big is the love of my slave for Me? Will he accepts to lose his life for me? This is what I want from my houseslave, to give his life for his Mistress!

I have my slave by the collar and I cover his face under my feet, pulling the leash and pushing hard my soles on his face, to smother him good. I command him to push even more and I know he is out of oxygen but he does what I say! I let him breath at the last second before and I keep dominating him on the floor, smothering him hard under my feet, even standing full weight on his face!