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.
You made a bet with another girl over who could stay locked the longest, loser gets photos of them in their belt released in the college forums boards. The first month was fine, the second month was hell, but the 3rd year? Even using the bathroom was eno
When your partner suggested you try some bondage to spice things up, you never imaged it would start with 3 weeks of chastity followed by a shibari session ending in free use for all your partner's friends.