Osiris, the ebony stud, rules his prison cell, his massive cock a well-known threat. Today, it's new fish, a lanky, pale twink, who gets a raw, deep-dicking initiation. Osiris, uncut and throbbing, forces the twink's mouth open, feeding him inch after inch, making him gag. The twink struggles, but Osiris' strength is unmatched. He bends the twink over, spitting on his virgin hole before pushing his thick, black cock inside. The twink cries out, but Osiris ignores him, pounding him hard, his heavy balls slapping against the twink's ass. The cell echoes with their grunts and the wet, smacking sounds of their flesh. Osiris fucks him relentlessly, the twink's hole stretched wide, swallowing every inch. Finally, Osiris pulls out, his cock coated in cum and lube, and blows his load all over the twink's back.