My new slave-in-training has endured a lot of corporal punishment and trampling from me today. Now, I will reward him with the most difficult challenge of them all: Breath control with my ass. I scrape my nails over his cock and give him the ultimate taste of smothering between stroking his hard cock and nipples. I own his breath, I own his cock, his body, his orgasms, his entire life and I could make it all end for him right here and now. I switch positions and grind his nose against my clit...How long and how hard will he suffer to be held down by my pussy and ass? Can he cum without oxygen?