Homsmother: Air robbery in smotherbox

The smotherbox makes my slave unable to move his neck and his head. This session’s gonna be really hard, as I’m about to totally control his breathing abilities. He’s surprisingly 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, that’s a true fact.