Mistress Cynthia found her slave smelling her underwear and she was pissed. She wondered what he did to her panties when she was not around and the thought sickened her. She chose to facesit on him and humiliate him. He was ok with it at first as he was able to kind of lick and smell her ass and pussy but it became too much for him as he could not breathe properly. He nearly peed his pants.