It just started as a game of dress up with your childhood friend, but before long she had you in a collar, dress, and chastity cage. She teased you that it was for her safety, but when she went home and didn't unlock you from it, you started to realize
Oh sweetie why are you acting up so much? I said you would get a reward at the end of the month and you behaved so good that I decided your reward would be a smaller better fitting cage. Now tell mommy that you are happy