Rarity's Swirlie

Rarity arrived at Canterlot High. She was wearing her usual purple skirt.

Her first order of business was to walk into the girls' bathroom. She didn't really have to go that badly, so she examined her hair and eye makeup in the mirror for a bit.

A closed stall behind her opened up, though there was no sound of a flush. Before Rarity could pay it much notice, she saw Aria Blaze's reflection in the mirror as she grabbed her from behind.

"Unhand me, you ruffian!" said Rarity as she squirmed in an attempt to get free of Aria.

"I've always wanted to do this to you, Rarity!" said Aria. "I've done this to a lot of girls, but you're the one I really wanted to get, and I'll make it extra special for you!"

She took Rarity into the stall she had come out of. The water in the toilet was yellow. Evidently, Aria had peed in the toilet and not flushed.

Rarity realized what Aria was about to do. "You wouldn't dare!" she said. "This is no way to treat a lady! That toilet is absolutely filthy!"

"Like I said, extra-special for you!"

Aria dunked Rarity's head in the toilet. Rarity's head was completely submerged under the yellow water. Rarity was disgusted, but kept her mouth shut to hold her breath. She did not want to get any of this dirty water in her mouth.

Then, Aria flushed the toilet. Rarity took a deep breath as soon as her head was no longer submerged, and Aria let go of her. Rarity stood up, panting. Her hair was soaking wet and smelled of pee.

"How dare you?" said Rarity. "It will take hours to get this smell out of my hair. This was the least dignified thing I have ever experienced."

"Except for that time you had a major gas attack," said Aria.

Rarity's face went bright red. "How did you know about that?"

"I have my ways."

Rarity slapped Aria in the face as hard as she could. Aria rubbed her cheek, and glared at Rarity.

"Bad girl. You should get a spanking for that."

Aria put the toilet seat down, grabbed Rarity, sat on the toilet, and put her over her knee. Rarity kicked and screamed, but Aria brought her hand down on Rarity's rear. Aria slapped Rarity's butt again, and again, and again, and Rarity whimpered with each swat.

After spanking Rarity 20 times, Aria grabbed some duct tape and tied Rarity's feet together.

"For heavens sake, what are you doing now?" said Rarity, who was too busy rubbing her sore butt to try to fight Aria off.

"Something I've been saving for one of you for a while!" said Aria as she began to tie Rarity's hands together.

Rarity elbowed Aria and slapped her in the face again. But with her feet tied together she lost her footing and fell on her butt. She whimpered as she felt intense pain in her rear. Aria picked up Rarity by her feet and hung her upside-down. Her skirt fell down and Aria could see her purple panties.

"Stop that at once!" said Rarity, who was blushing profusely with embarrassment.

Aria slapped Rarity's butt hard, and Rarity whimpered and stopped fighting back. Aria laid her facedown on the ground and tied her hands behind her back. Then she put the duct tape over her mouth, and sat her down on the toilet.

"Stay there until I come get you tomorrow morning," said Aria, and she positioned her butt in Rarity's face and let out a loud, wet fart that lasted seven seconds. She had been holding it in all morning after eating nothing but beans for breakfast. Only able to breathe through her nose, Rarity was forced to smell Aria's fart, and let out a muffled moan, for it smelled really bad. She struggled vigorously against her bonds, but it was no use. Aria had tied her tight.

Aria locked the stall door, climbed over it, and walked out of the bathroom.

Rarity sat there for hours and struggled against her bonds. She still had to go to the bathroom, and her desperation got worse as each hour went by.

Four hours later, the bell rang for lunch, and Rarity really needed to go. She let out several muffled groans under her duct tape gag, and tried to get free, but it was no use.

Then, she heard the door open, and someone entered the stall next to her. The sound of pee splashing in the toilet could be heard, and that made Rarity leak into her underwear for about three seconds. Afterward, she could hear a flush, and then the girl left.

Then more girls came in and the sound of running water could be heard as they turned the taps on. Rarity leaked more into her damp panties, soaking them. Rarity groaned through her gag, trying to get the other girls' attention and hoping they wouldn't notice that she had peed a little.

Eventually, the bell rang again for the afternoon class, and Rarity was left in her current position.

Her need to pee grew greater. Rarity struggled desperately against her bonds, and she could feel the pee sloshing around inside her. She knew she was about to burst.

After about half an hour, she couldn't hold it in anymore. Rarity felt her already-wet panties grow warmer and wetter, and a wet spot appeared on her skirt, rapidly expanding. Though no one could see this, Rarity blushed as she wet herself uncontrollably. After about five seconds the pee passed through her skirt and splashed into the toilet. The front and back of her skirt got wetter with each second, and her panties were absolutely soaked.

Rarity peed for about a minute, and then she finished, feeling ashamed that she peed in her dress.

She sat in her wet panties and dress for another hour, by which time it was half an hour until class was over. She did not want to be trapped here for the entire night until Aria came back tomorrow morning. So, she stood up and tried to open the lock with her head. She knew it would be humiliating to be seen in her current state, but there was a fountain nearby so if she could just hop over to it and take a bath in it, no one would know the difference.

However, before Rarity could even make any real progress on opening the door, she lost her balance and fell back onto the toilet. And then, her butt splashed into the toilet, as the seat was not down. She tried to get out but with her hands and feet tied she couldn't. It wasn't as though she was getting any wetter or dirtier - though the toilet was full of her pee, her butt was already soaked - but it was still very unpleasant and undignified.

Rarity stayed in this position until the bell rang for the end of school. Her heart sank. She'd be in this position for the rest of the night.

Then, Pinkie Pie suddenly climbed over the door of the stall. "Hey Rarity! Whatchya doin'?"

Rarity blushed at being seen in this state - she was very wet and smelled of urine, and her butt was still in the toilet - but she was still relieved to see her.

Pinkie got Rarity out of the toilet and untied her.

"How did you know?" said Rarity.

"Just a hunch," said Pinkie. "Now, let's go!"

"Can we wait until it's settled down out there? I REALLY don't want anyone else to see me like this."

"I've got it under control!" said Pinkie, and she opened the door, grabbed Rarity's hand, and ran fast, taking her along for the ride.

She ran into the gym, moving too fast for anyone to see the wet spots on Rarity's skirt. She threw Rarity into the showers and turned them on, and stood under the water with her.

"Now if anyone asks, I decided to randomly take a shower - which I sometimes do - and made you come with me!"

Rarity was extremely grateful. Now no one else would know that she wet herself, and Pinkie Pie wasn't even making fun of her for it.

...

The next morning, Aria walked into the bathroom. The stall she had locked Rarity in was closed, and she could hear the sound of several loud farts. Aria chuckled. Rarity must be messing herself very loudly!

Once the farting had subsided, Aria climbed over the door - only to find Pinkie Pie, wearing a cute pair of jean shorts.

"Pinkie Pie? Wha-"

Pinkie grabbed Aria from behind and held her head close to the toilet. It was full of diarrhea, and it smelled really bad. Aria frantically tried to wiggle free, but Pinkie dunked her head in the toilet mid-scream. After about ten seconds, Pinkie flushed, and pulled Aria's head out. Aria was coughing and sputtering, her hair soaking wet and very dirty.

"Next time you do that to Rarity, I do this to you!" said Pinkie. She sat on the toilet, put Aria over her knee, and spanked her 20 times. Pinkie could spank as hard as Aria, and her butt was in a lot of pain when it was over. At this point, Aria realized that she needed to pee very badly, for she was so excited to see the state Rarity was in that she had forgotten to take her morning pee.

Once Aria got to her feet, Pinkie stuck her butt in Aria's face.

PPPPPPPPPPPPPPPPPPFFFFFFFFFFFFFRRRRRRRRRRRRRRRT!

This fart was 16 seconds long and smelled so bad that Aria fell on her butt. Pain exploded through her rear, and she wet her purple jeans, blushing as a puddle grew under her.

"Oops... I might've farted a bit too hard," said Pinkie, feeling how wet and dirty the butt of her underwear was. "And I forgot to use toilet paper... Oh well!" She cheerfully walked out of the room.

Once Aria finished peeing, she stood up and ran home as fast as she could to change.

As she reached her front door, she felt a big fart coming and unabashedly let loose.

BBBBBBBBBBBBRRRRRRRRRRRRRRRRAAAAAAAAAAAAAP!

Aria's face went beet red as she made a big mess in her already-wet pants. The stench reached her nose and she nearly gagged.

She walked into the door, hoping to get to a bathroom and change unseen, but unfortunately for her, Sonata Dusk was just coming out of the bathroom.

"What's that smell?" said Sonata. She saw the state Aria was in, and giggled. "Heehee! Aria wet herself, and she soiled herself!"

"Shut up," said Aria, blushing profusely, and she took her change of clothes into the bathroom to clean up. She would never do anything like that to Rarity or any of the Rainbooms ever again!

From that day on, whenever Aria got nervous or scared, she'd wet her pants, and sometimes when she'd fart really loud, she'd mess herself.