Kathryn's slave has been very bad. As men usually do, he has been thinking with his balls just a little too much, and Kathryn is very upset by this. She cannot let any of her slaves think or do things this freely. Now it is time for Kathryn to administer a serious punishment to his disobedient balls. He is laying down completely nude. His genitals exposed, ready for her torture. He knows he is in trouble, but not how much. Kathryn grabs on to his manhood and lays into it extremely hard. Each ball crushing slap is causing extreme pain to his most sensitive parts - the back side of his testicles. Kathryn skillfully grips them so their most sensitive parts get crushed by her grip and the slapping. He squirms and squeals pleading for mercy as she slaps him over and over again. Kathryn can be a very cruel mistress. (HIGH QUALITY 720x480)
