In the dungeon, a dominatrix bends her slave over, his ass exposed and vulnerable. She runs her fingers along his taint, making him shiver. "Your balls are mine to play with," she purrs, slapping them harshly. He gasps, but she's just started. She squeezes, pulls, and twists, driving him to the edge of tears. She commands him to climax, and as he does, she milks his balls, causing him to cry out, submitting utterly to her cruel, exquisite torment.