Mistress Angelique felt that her boyfriend would act better if he was a little scared of her. That is why she opted to make him choke a little from her ass and her facesitting. She waited until he pissed her off before she did it so that he associated that with messing up. That way, he never wanted to mess because he would be punished the same way if he did so.
This guy was a cheapskate and yet he yearned the company of mistresses Angela and mistress Edwige. They did not need his money to party but they were concerned with how much of a cheapskate he was. They were concerned to the extent that they had to punish him and facesit him so that he either stopped being a cheapskate or he stopped hanging out with them. It was his choice.
Mistress Shona is blessed with a gorgeous ass and she loves to show it off. She does not believe in hiding it because she feels that it was given to her for a reason. And that is why she chose to use breathplay femdom to flaunt it and also humiliate this guy. She teased him a bit and then facesat on him and choked him a little in the process.