This guy was bigoted towards bbws. They did not want to let him continue having such behaviors so the mistresses used their big asses to teach him a lesson. He was forced to endure their farts and their facesitting. He could not believe what the mistresses did to him but he had no choice other than to do what the mistresses wanted him to do. He learned from that punishment.
This mistress was so pissed and disappointed at her man for masturbating that she felt that the best thing to do to him was to humiliate him and make him learn to stop doing that. So the mistress went out of her way to force him to endure her facesitting and her fart fetish. He nearly choked in the process of that punishment and he stopped jerking off so as not to go through the same.
Goddess Nika wanted to avoid having sex with her husband because she was not in the mood. But she did not want to hurt him so she came up with a way to do it so that she achieved her goal. The mistress used her farts to do it and he was turned off so she did not need to worry about hurting him with her rejection of his advances.