Pinkphoenix5, the experienced milf, decides it's time to introduce her chastity-caged stepbrother to the pleasures of anal play. He's been locked away, eagerly awaiting his first pegging session. She leads him to the bedroom, his cock straining against the cage. She lubes up her strap-on, the head glistening and ready. He gasps as she presses it against his virgin asshole, feeling the unfamiliar pressure. She slowly pushes in, allowing him to adjust to the sensation. Once he's comfortable, she starts to thrust, his moans filling the room as she pegs him for the first time.