In a dimly lit Brazilian dungeon, Mistress M, a dominant beauty, takes her submissive slave through an intense CBT session. She orders him to kneel, his back arched, as she towers over him. She begins by kicking his testicles with the pointed toe of her heel, watching as he sucks in air through gritted teeth. Next, she forces his balls through a tight O-ring, stretching them painfully before applying clamps. The slave struggles to maintain his position, but she demands his obedience. She finishes by slapping his balls rhythmically, her eyes gleaming with satisfaction at his torment.