Fiona Rivers is once again the center of her master's darkest desires. He commands her to bend over, exposing her tight, puckered asshole. With no mercy, he plunges a thick, vibrating toy deep into her ass, making her scream and squirm. The machine's powerful thrusts drive Fiona wild, her body shaking with pleasure and pain as she's spanked and gagged. She can't help but moan and beg for more, her asshole greedily milking the toy for every last vibration. As her master watches, Fiona's body convulses in a intense, backdoor orgasm, leaving her coated in sweat and cum.