The room echoes with the sound of flesh slapping against flesh as a man unleashes his darkest desires. With a rough grip, he forces a thick, ribbed urethral sound into his peehole, groaning as it stretches his tight passage. He jerks off furiously, the intense sensations overwhelming his senses. His cock swells, and with a final, forceful thrust, he cums, his body convulsing as he coats his hand and stomach with hot, sticky fluid. Before he can catch his breath, he's pushing the sound back in, his body craving more of this taboo pleasure.