A slave, confined in a chastity device, is presented to his Femdom trainer. She parades him around, making him perform demeaning tasks - cleaning her heels, fetching her wine - all while his cock aches with need. She sits him down, his back straight, his eyes downcast. She takes his hand, places it on her thigh, and commands him to massage her. He does, his fingers trembling, his body tense with the effort to control his arousal. She laughs at his predicament, his torment, before finally releasing him from the device, but only to edge him again and again, refusing him the orgasm he so desperately craves.