When this mistress noticed that she was dealing with a guy who liked to hear his own things and do his own things as opposed to what she told him, she knew she had to get creative in an effort to get him to change and follow her instructions. So she used her pee to dominate him and that is what shocked the guy and made him change his behavior.
These mistresses had to find a way of dominating this guy. He had a crush on them but he did not know that the mistresses were lesbians. So they were not turned on by him and instead they chose to dominate him with their pee. They showed their sexy asses and their pussies and he could not help but drool and that was when they made him drink their pee.