Twilight Sparkle, Equestria's newest princess, had just a few hours ago been thrown into a strange new place. Everything was so different at Canterlot High: Everyone was divided, no one seemed to want to come together. Feuds were constant, even between the closest of friends. But, the biggest change was to Twilight herself... on the outside, at least. She now found herself struggling to balance on just her hind legs. Her front hooves had been replaced by strange looking appendages, with weird stick looking things protruding from them. Worst of all, she couldn't use her magic.

She was something called a “human”. She had heard of such creatures before, from that odd mint colored unicorn with the lyre cutie-mark, but Twilight never thought that she herself would become one. Not even in her wildest dreams.

But, she couldn't dwell on that too much right now, she had to get her crown back from Sunset Shimmer before it was too late, and to do that, she'd need to become the 'princess' of a dance held at the school, which she assumed would probably be a lot like the Grand Galloping Gala.

The pressure was on.

And shortly after Fluttershy gave Twilight a tour of the 'cafeteria', the pressure was really on. Twilight had enjoyed the juice prepared by the lunch lady, (who looked suspiciously like Applejack's Granny Smith) a little too much. She really couldn't have helped herself, though. It tasted just like the cider at Sweet Apple Acres, aside from being delicious, it made her feel more at home.

But, perhaps in hindsight, drinking three cups of it wasn't such a brilliant idea. She soon felt a twinge in the lower part of her abdomen, a constant distracting throbbing, making her fidgety and irritated. Her stomach cramped with all the liquid as she walked through the hall, and Twilight stumbled back against the wall, shifting her new legs around and rubbing them together.

She eventually found her way to the auditorium, where a human girl who looked and acted just like Pinkie Pie was setting up decorations. Twilight told the pink-haired girl that she wanted to run for princess of the Fall Formal, and was given a form to sign. Even if she had any experience holding a pen with her 'hands' she would have had great difficulty with this task. It was difficult for her to stand still, she was bouncing on her toes as she shakily spelled out her name. Luckily, Pinkie didn't notice her strange movements, probably because she never stood still herself.

After meeting a human Applejack, Twilight exited the auditorium, in desperate need of a way to fix this predicament as soon as possible. If she was in Equestria, this would be easy, ponies usually relieved themselves in outhouses which contained small holes in the ground. But here, in this weird new place, with this weird new body, she didn't have any idea how this task was supposed to be carried out. She silently cursed herself out for not listening more intently to Lyra when she excitedly rattled off facts about humans. She probably would have mentioned it at least once.

She squirmed as she looked around. Earlier, she had walked into a restroom in order to inspect her reflection, some humans had been standing in front of odd pieces of porcelain to relieve themselves. So, was that how she was supposed to do it? On her hind legs? Humans did everything else on their hind legs, so it made sense.

Twilight didn't know which way to go to get back to the restroom, she had gotten so turned around just trying to find the auditorium. But, her body didn't seem to care. As all the juice she'd drunk at lunch made its way through her system and settled into her overburdened bladder she squeezed her legs together like it had helped her before, desperately thankful for the tiny relief it granted her.

Soon, she had examined every room in that hall, and that was only one wing of the school. She turned, her expression visibly distressed and tried to decide on her next course of action. Her bladder was well overfull, the feeling of heaviness was beyond distracting, it had reached a level of painful urgency. She had to relieve herself of the waves of liquid inside of her. She simply HAD to. She was slightly wary of walking. She did, however, as quickly as she could in this incredibly pained state. She tried to think straight, but her mind was too entirely focussed on the discomfort in her abdomen.

Her breath was quick and shallow, as if she had just experienced a terrible fright, as she made her way down the hallway. She made a small, whimpering sound in spite of her great desire to hold onto her pride and squeezed her legs back together. The wave of pressure inside of her seemed to deepen and surge into a more severe state of urgency, and she felt even more close to the point of losing any semblance of control.

She tried to pick up her pace, but her bladder swelled even further and pinched at her mercilessly in anger. She didn't dare move for several seconds. She stood, every part of her new body almost numb from being so tense. Finally the rush of pressure edged off just enough, and she was able to take a few more harried, shaky steps, when suddenly her bladder trembled with an absurd, insistent urgency, and to her horror and absolute humiliation a warm, thin jet of urine escaped into the fabric of her skirt. It was too late. She couldn't help it. She was wetting herself. Twilight Sparkle, Equestria's newest princess, was wetting herself. She could feel a frightening amount of hot wetness trickling down her legs. She tried in vain to regain her control, tearing up slightly, but to no avail.

She was shaking all over. She could now hear a slight splashing and pattering against the hallway floor, as well as a humiliatingly loud, un-ignorable hissing noise. She couldn't stop no matter what she did. Long rivers poured down her legs, the puddle on the ground multiplied in size, pooling all around the area surrounding her purple boots. The stream subsided after nearly a minute and she looked down. Her shoes, socks, legs and skirt were soaked in urine, she rushed off to find somewhere that she could clean herself up.

Unfortunately, she didn't notice Sunset Shimmer's two lackey's Snips and Snails, had been videoing her whole embarrassing ordeal with their cell phones.