Trapped in the smotherbox - at the mercy of my feet!

Description: I want to take this slave to his real limit today - and therefore i've not only put his head in the smotherbox, but also bound his hands to it - and put some gaffer tape over his mouth! this way it's really easy for me to smother him with my powerful feet ... i can just comfortably sit on the bar stool and press my feet hard on his nose! it doesn't take long until the slave starts panicking - but like i said, i want to take him to his limit! i get to enjoy looking into his fear-filled eyes, trying to beg me to have mercy with his eyes ... but these attempts will be futile - only i get to decide how long he'll endure the lack of oxygen - and when i will allow him to breathe again ... and for how long!