Air Robbery In Smotherbox

The smotherbox makes my slave incapable to stir his neck and his head. This sessions gonna be indeed hard, as Im about to totally control his breathing abilities. Hes remarkably resistant when I put the pressure on his nose and mouth. This gives me some extra motivation to extend my breath play and thus to discover his limits! Some time or another, I make them all weak, thats a true fact.