A new toy arrives, and the submissive's heart races with anticipation, only to be crushed when his Mistress reveals her true intent. She sits him down, his hands bound behind his back, and presents the shiny, new chastity device. She runs it along his thighs, his cock twitching, desperate for release. She laughs, a cruel sound, and orders him to stroke her. He does, his hand shaking, as she watches, enjoying his humiliation. She takes his hand, wrapping it around his caged cock, making him stroke himself, denying him the orgasm he so desperately craves. She leans in, her voice a low purr, "You'll learn to control yourself, pet. Or else."