Cum for Air

My bound slave finds himself in a bizarre predicament.. his neck tied down to the back of his hands, and his legs tied spread. with a latex hood on to limit his every breath.  i want him to see if he can cum before he's allowed to breathe.. or else..  securely (or so i thought) tied down, my sweaty stockings and latex gloves go to work on his bound cock. i use my stockings to block the tiny air hole he has.. the rope ended up being so tight around his cock his orgasm was completely blocked.. insult to injury.. hehe his panic is so real he breaks one of the rope ties on his legs.. but don't worry.. he still can't go anywhere.. i guess i'll have to strap him down better next time.. watch me laugh at his struggle.. hehe