Lady Blackdiamoond, the queen of fetish, takes charge as Defmaso, her eager pupil, learns the art of ass-to-mouth submission. Bound and gagged, Defmaso's eyes water as his mistress commands him to worship her boots, then her strap-on, before plunging into his depths. He struggles, but the taste of her ass and the humiliation fuel his desire, making him her perfect, drooling slave.