Bound Trapped For Facesitting

The slave is struggling way too much recently when I smother him - so today, I bound his arms and legs together firmly and additionally put his head in the smotherbox! Now hes completely unable to move and totally at my mercy. I sit down on his face with my hard jeans and mercilessly smother him under my ass. The hard fabric of the jeans slowly flattens his nose and the longer I keep sitting on his face, the more the trapped loser panics - but theres nothing he can do about it - he can just hope, that I get up in time. Every now and then I get up for a short time and let him breathe - before I sit down again, and the smothering continues!