This mistress likes to look for losers and make them do things for her fun. She likes to dominate them and facesit on them and then have them pay her to stop. She loves to do it because she has the time and she has the skills. Most of them never see it coming and that is why she does what she does to them. But it pays and they never see it coming.
Mistress Zephy did not like how naughty this guy was being. She had warned him not to do so but he went ahead and did it. The mistress felt that it was high time that the guy got punished so she did it with her facesitting fetish. He was in pain and he was humiliated by what she did as she facesat him with her bare ass and let him smell her stinky ass.
Mistress Zephy was interested in facesitting her ex in an attempt to torture him because she felt that he needed to be humiliated and taught a lesson. That is why the mistress had to use her ass in an attempt to humiliate him besides making him feel pain. The mistress enjoyed it more than she had thought it would be possible because she had forced him to lick her ass.