This slave knew he was doing the wrong thing but he could not help it. He had done it before but had not been caught and he thought he was going to get away with it today as well. But his luck had run out and lady Rio found out about it. She ballbusted him by slapping his nuts with her hands. She also punched them painfully. He regretted what he had done.
This mistress was angered by the way this guy treated her sister. She did not want him to do it again since her sister loved him and did not want to break up with him. So she looked for him and she kicked him in the balls. She did it so painfully until she was sure he had felt the kind of pain she wanted him to feel and learned his painful lesson.