A lone, muscular sub surrenders to the relentless pleasure of a fucking machine, its thick, veiny cock pulsating against his eager prostate. A vibrating anal probe teases his sensitive gland, building an intense, hands-free ecstasy. He moans, his massive cock leaking pre-cum, as the machine's relentless rhythm drives him closer to the edge. With a final, shuddering spasm, he erupts, his prostate milking out a torrent of cum.