As you tried to run back out the exit, you stumbled and slammed into something hard. When you fell back on your ass your instinctively open your eyes and look up into another mirror. You panic, fearing what the mirror might do to you, but after a few moments you don't notice any changes.
"Phew, guess I got lucky this time." You say to yourself, standing up. When you get to your feet, you take a closer look at yourself and grin. You're pretty hot, for a fifteen year old.
When you think this, you feel a slightly wetness in your panties. "Am I turning myself on?" You wonder, but something seems off. Lifting your skirt to see a pair of teenage sized pull-ups on you. You grab the front quickly and your eyes go wide. "Oh my god! I'm wetting myself!"