Mistress Deviant found out that her husband had cheated on her with his ex years ago. It was not ok for her and she did not care that it happened years ago. She had to punish him and she did it by cuckolding him. So she flirted with another man and she fucked him while her husband watched so that he would never want to try having sex with anyone else other than her.
This mistress had an elaborate plan to cuckold her husband because he had done some things she did not like. He had cheated on her and she was so pissed at him that she felt that the best thing to do to him was to dominate and torture him which she did by making him watch her entertain another man. He could not do anything about it but he learned from it.