In a dimly lit chamber, a bound sub awaits his mistress' every command. She mounts him, her asshole inches from his face as she bounces on his cock. He struggles to please her, his tongue flicking her puckered hole. She grinds harder, smothering him, then dismounts, ordering him onto all fours. She slaps his ass, leaving red handprints, before fucking him doggy-style, her tits swaying. She pulls out, making him lick her pussy, then jerks him off, his cum splattering onto the cold floor. She grinds her foot into it, making him clean her sole with his tongue.