Heavy Ballbusting to teach him Submission

I fixate my slave's hands above his head and spread his legs wide open with a metal bar. He can't protect his nuts from me anymore. They are mine and I will kick them as hard as I want! I tease him just a little bit in my sexy Latex outfit, then I begin the ballbusting. Over and over I slam my boots into his testicles, grab them by the hand and squeeze them hard, and his body shivers. He screams loud in pain, bends and flinches, but I just laugh at him and keep ballbusting him with strong intensity. After two heavy rounds, I make him lie on the floor and work his nuts with my bare feet. I ramp up the intensity, kicking harder and harder, until his shouts are filling the room. Then I stand on his balls and jump on them, as if they were a trampoline. I will crush his balls under my pure power, until he realizes that he has to completely submit to me. I demand that he kisses my feet and says "Thank you Mistress"