Amy's perversion is that she likes to dress up and be treated like a bimbo. She's also a rare girl who actively enjoys eating ass and sucking up ass juice. Dr. Mercies--who still hasn't been able to get back on track with giving his patients proper therapy--decides to exploit her as his office bimbo. He mounts Amy on wheels and spins her round and around so she can take it in the ass, suck Dr. Mercies' ass, and slurp her ass juice off his cock. Dr. Mercies also makes her eat his feet and gives this obedient bitch some proper domination. She sucks it all up, being the filthy, submissive, ass-sucking whore that she is.
