In the dimly lit dungeon, a leather-clad master, his face obscured by a mask, begins his brutal session. His sub, also masked, is secured to a bench, ass presented and ready. The master lubes up his gloved fist and begins the slow, torturous push into the sub's tight hole, stretching it wider and wider until it gapes obscenely. The master's fist disappears entirely, only to emerge slick and shiny, ready for another deep plunge. The sub's cries of pleasure-pain fill the room as the master ruthlessly punishes his hole.