Matron has caught you in her bedroom sniffing her panties, and not for the first time! So now she will make sure you can definitely not do it again! She has brought you to Headmistress’s office knowing she will have what she needs, a way of controlling you and your tiny cock for good! Matron goes in the drawers and pulls out a tiny frightening looking chastity cage with a padlock & keys. She goes on to explain how she will be locking your cock away so you can no longer get erect never mind play with it! She will have the keys, and the only hope of it ever being set free is if she decides you can be unlocked! She tells you to drop your trousers and pants and then bends down to apply the device, making sure you are locked in tight. She stands back and admires her handy work before explaining how now she must test the cage; make sure you cannot get fully hard. She unzips her top revealing her sexy black bra and perfect cleavage, squeezing her big round tits as she does, and it is not long before your cock is straining against the bars! She takes a closer look, laughing at how your cock is bulging in the tight cage and unable to get fully hard, it must be so painful! Now Matron owns you and your cock and all you can do is hope that one day she will be lenient enough to set your dick free!