This guy was too careless for these mistresses and they felt that they had to dominate and torture this guy. He did not expect what they did to him but he did not have a choice either. He had to do what they wanted him to do and the mistresses had fun at his expense. He learned his lesson the hard as well as cruel way before they let him go.
When this mistress needed to dominate this loser, she did not have to think far to do it. She settled on doing it with her shaved pussy by peeing on him and teaching him a lesson no one had ever done before. She had a great time torturing him and ensuring that he learned his lesson and that he would not repeat it. It worked out and he got the message.