In a dimly lit dungeon, a femdom trains her new slave in the art of chastity and denial. She fits him with a custom-made device, his cries of protest echoing as she locks it tight. She orders him to stroke her body, his hands trembling as he explores her curves. She guides him, her voice a husky whisper, "Slower, harder, just like that." But he's not touching her for pleasure, he's training for her, learning to bring her to the brink without release. She commands him to watch as she orgasms, her body convulsing, his cock throbbing painfully against its imprisonment.