Heavy Ballbusting to teach him Submission

Description: 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 cries 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", because i know that he does not see himself as a real submissive. i want to see, if this heavy ballbusting changed his mind and if he is ready to submit himself to my superior power now...