Vivi Clouds, the submissive teen, is led around on a leash, her collar a symbol of her devotion to her mistress. She's been a good pet, and her reward is a thorough anal training session. Her mistress lubes up Vivi's tight little asshole, gently inserting a butt plug. Vivi moans, pushing back against the toy, eager for more. Her mistress smirks, knowing Vivi's limits, but also knowing she can take more. She replaces the plug with a larger one, and Vivi gasps, her asshole stretching to accommodate the new size, her body trembling with pleasure and a touch of pain.