With her slave strapped down in a gas mask, Amazon Miranda Mayfair begins to torment his cock and balls, tying them off with rubber tourniquets and slapping his balls before inserting thick steel sounds down his urethra. When he fails to take the final sound, she decides to stretch him out by inserting a special urethral locking chastity device down his cock, locking it into place and slipping the key around her neck, leaving him to squirm with a cock full of steel.