Miss M, a stern domina, chains her slave p to a fucking machine, ready for a marathon of anal pleasure. The machine's thick, relentless strap-on probes his tight ass, stretching it wide. He gasps, squirming against the restraints, as Miss M watches, satisfied. She commands him to beg for more, and he obliges, his voice ragged with desire and humiliation. The machine's pace increases, slamming into him, pushing him closer to the edge. Miss M smiles, enjoying the sight of her slave's intense, taboo pleasure.