A stern dominatrix, displeased with her submissive's performance, decides his punishment: a chastity device. She takes him through a humiliating process, capturing every moment in POV. First, she forces him to measure his tiny, soft cock, then she slips on a leather glove and roughly handles him, making him groan in discomfort. Finally, she secures the steel cage around his penis, locking it with a small padlock. She smirks, knowing he'll be in agony for days, begging for release.