The submissive's cock twitches, testing the confines of its new prison. His dominant partner, a queen of tease and denial, watches with sadistic pleasure. She strokes his balls gently, making him gasp, then pulls back, leaving him hanging. "You want to cum, don't you?" she taunts, her voice a sultry whisper. "But you won't, not until I say so." She grabs a nearby vibrator, turning it on and pressing it against his perineum. He moans, his body tensing as he fights the urge to orgasm. She laughs, a sound like music to his ears, and turns off the vibrator. "Not yet," she says, her eyes gleaming with cruel amusement. "You have so much to learn, my pet."