Miss M, the formidable domina, teases her new slave, 'P', with a giant dildo, promising anal delights. P, caged and eager, squirms as Miss M taunts his loose asshole, making him beg for the monster toy. She lubes him up, stretching his hole with her fingers, then slowly eases the massive dildo inside. P moans, his ass swallowing the length, as Miss M fucks him hard, his chastity cage clanking against his balls.