First you wore panties, then you dressed up, now you are locked in a cage that you lost the keys for and there is only one way left to feel release. Let's hope you are a fast learner.
You were told you'd be locked in the cage until you willingly ate your own cum, you figured it wouldn't be hard, you had eaten a little off your hand before. Unbeknownst to you, your owner's idea was an entire bowl load. It took a long time to save it
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
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 never expected your house maid would find your key and then blackmail you to stay her little toy when she caught you wearing your cage and took some photos. If you fired her, she would just release the embarrassing photos.