Mistress Gaia and her friend Alisha did not like how this guy disrespected his wife and sometimes battered her. They had tried to advice her on what to do but he clearly feared him and could not do anything about it. They decided to confront him directly so they lured him to their house and when he came, they beat the shit out of him. They kicked and trampled and stomped on him and told him to never lay a finger on his wife again.
Lady Krasaviza knows that to get to this slave, she had to kick him painfully so she kicked him in the nuts. She ballbusted him cruelly and she made sure it was as bad as her slave had never experienced before. He was a tough one and a little pain did not scare him. So she made it as painful as she could to send a message to him and it worked.