Hypnotism never worked for you, but listening to it and fantasizing while doing it was hot, that is until you listened to the chastity swimsuit stories. Next thing you remember is being locked in a chastity cage and having new bikinis, you didn't rememb
The hard plastic cage covering your privates didn't let any sense of feeling through, but for some reason you tried to still tug on it even if you knew it was a hopeless endeavor.
You always thought you had problems with being insensitive down there, however, it would appear you just jerked off too much and lost sensitivity, 2 months in chastity fixed that.
The pain of the small cage and a plug that was 2 sizes bigger than you were used to was almost too much, but the pure pleasure you were feeling from the rush of arousal was enough to keep you going forward with your training.