Mistress Reiko, a Japanese dominatrix, takes control of her masked submissive, treating him like a pet to be trained and disciplined. She begins by making him perform tricks, rewarding him with a spanking or a taste of her strapon. Reiko then mounts him, pegging him deeply as she rides, her pet's moans of pleasure and pain fueling her lust. She trains him with a dildo, ensuring he's ready for her every whim, all while the camera captures their intense, taboo encounter.