Author's Notes:

Well, another scat story. Don't expect top quality - my scat stories are shit!

Rarity was sitting in history class at the start of a school day at Canterlot High, having just finished math class. Today seemed like one of those days where all they did was hear of a historical event the entire class through.

She was wearing her usual outfit, which included a purple skirt, and light blue panties underneath.

Only a few minutes into the class did Rarity feel a gurgling in her stomach. Was she hungry? No... she had eaten a big breakfast today. She shrugged it off and listened to the teacher's history lecture.

Rarity's stomach gurgled again even louder, and then an unpleasant sensation came. She tried to ignore it, but after a few more minutes...

PPPPPFFFFFFFT!

Rarity blushed while Rainbow Dash and Pinkie Pie giggled.

"It's not funny!" said Rarity. A slightly quieter wet fart made its way out of her.

"May I continue the history lesson?" said the teacher.

Ten minutes later, Rarity could feel another fart coming, and tried to hold it in. Her discomfort showed in her face, and Rainbow Dash and Pinkie Pie looked in her direction and tried hard not to laugh.

Five minutes later, Rarity let out a loud, wet fart that lasted six seconds. Rainbow Dash and Pinkie Pie laughed, and so did a few of their classmates. Sunset, Twilight, Applejack, and Fluttershy not among them.

"Settle down, class!" said the teacher. "Rarity, do you need the bathroom?"

"I'm fine," said Rarity, blushing profusely. It was not a ladylike thing to do to fart so loudly. Something she had eaten for breakfast hadn't quite agreed with her.

About two thirds into the class, Rarity felt another sensation. She knew she had to do more than just fart, and desperately tried to hold it in.

She let out a few wet farts before the class was over. There was a break between this course and science class, so she raced to the bathroom as fast as she could.

Once she was inside a stall, she pulled down her panties, hiked up her skirt, and let go. She felt a wet mudslide make its way out of her, splashing into the toilet. After about ten seconds she was done. She flushed the toilet first, and then used the toilet paper, for she needed a lot to clean up.

After flushing again and washing her hands thoroughly, Rarity went to her science class.

The teacher gave them a speech on what they were studying today, and then gave them their worksheets halfway through the class.

By this time, Rarity was feeling uncomfortable again. She answered the questions as best she could, trying to ignore the pressure in her rear.

BBBBBBBRRRRRRRRRT!

Rarity blushed as she farted again. This fart was wetter than her previous farts, and she knew what was to come.

"Phew, you really need to lay off the beans, girl," said Applejack.

Ten minutes - and several farts - later, Rarity was fidgeting, holding in the next wave. She let out another fart, and was relieved that her panties stayed clean.

She had just finished the last question when the bell rang for lunch. Rarity quickly packed up her books and bolted to the bathroom. Taking the same stall as last time, Rarity released the contents of her bowels into the toilet, more noisily than last time. It came out of her so fast that her butt was splashed with water, causing her to squeal. It smelled more foul than last time.

A few flushes and a lot of toilet paper later, Rarity walked out of the bathroom to the cafeteria, feeling much better.

"So Rarity, wanna have a farting contest with me and Pinkie Pie?" said Rainbow Dash as Rarity sat down at the table with the others.

"Heavens no," said Rarity. "I would never partake in something so vulgar!"

"Really?" said Rainbow Dash. "Cause earlier today you sounded like you'd be up for it!"

Rarity blushed with embarrassment.

"Quit it, Rainbow," said Applejack. "She doesn't like that as much as you do."

Despite Applejack's earlier comment in class, Rarity greatly appreciated this. She started eating a potato salad, while the other girls each had something else.

Once lunch was over, Rarity and her friends went to gym class, where they divided into two teams and played soccer. Rainbow Dash, Twilight, and Sunset were on Rarity's team while Applejack, Fluttershy, and Pinkie Pie were on the opposite team.

Not long into the game, Rarity felt a cramp in her stomach, and stopped in her tracks as she let out an even louder, wetter fart than before, causing Pinkie to steal the ball from her.

"Ugh... what in the..." BBBBLLLRRT! "did they-" FFFFRRRRRRT! "put in that-" BBRRRAAAAAP! "potato salad?" FUURRRRP!

Rarity continued to try to play the game, but froze every so often as she released even wetter, smellier farts than before. And, about half an hour into the game, she could feel she needed to go. Badly.

"You do know there's a bathroom right there," said Rainbow Dash.

Rarity decided that this was the best course of action. She'd be no use to Rainbow Dash's team in her current state. She ran into the gym's bathroom, pulled down her panties, and let a torrent of crap cascade out of her into the toilet.

Before she stood up to flush, she picked up her panties, sniffed them, and recoiled at once. Her panties smelled of farts. Hopefully no one would notice. They probably wouldn't, unless they sniffed her butt for some reason.

Rarity returned to the game, and played much better than she had before, and assisted a few of Rainbow Dash's goals. Their team won that game. Once gym class was over, Rarity went to her final class of the day, English.

They were reading a novel, but ten minutes in, they were constantly interrupted by a series of wet farts that began to stink up the room. The teacher looked annoyed but was very patient with Rarity, although after a particularly long fart she opened all the windows in the room while Rainbow Dash and Pinkie Pie giggled.

"I'm dreadfully sorry, Miss," said Rarity, blushing with shame unlike anything she had ever known.

Another ten minutes in, Rarity was fidgeting, for she had to poop really badly again. She let out a few more farts, and whimpered.

"Rarity, if you needed to use the bathroom, all you have to do is raise your hand," said the teacher.

Rarity was so desperate she wouldn't consider any other option at this point. She raised her hand. "Can I use the bathroom?"

"You may," said the teacher.

Rarity jumped out of her seat and ran to the nearest bathroom, the same one she had used twice earlier today, farting several times on the way there.

Without a second to spare, Rarity was sitting on the toilet with her panties down, noisily relieving herself. There was a lot more to come out this time, and Rarity was afraid it wouldn't flush, but it did.

Then Rarity saw to her dismay that there was no toilet paper left. She had used the same stall each time she was in this bathroom, and used up almost all of the toilet paper. Someone else must have used the last of it after her last trip to this bathroom. She pulled up her panties, disliking the dirty feeling at once, and returned to class.

As they read the story, Rarity's butt felt itchy, and she occasionally scratched herself, hoping no one would notice her. The back of her panties were dirty, smelly, and wet from toilet water that had splashed her butt harder than last time. She was sure they may have been damaged beyond repair.

With ten minutes left in the class...

BBBBBLLLLLLLRRRRRRRRRT!

Rarity blushed as a deep-pitched, wet fart made her panties feel even dirtier.

She farted several times over the next five minutes, and then her gas seemed to be gone.

When the course was over, Rarity walked outside with the other girls and sat on the bleachers, where Rainbow Dash was playing a soccer game. Pinkie Pie turned to Rarity.

"Rarity, we should TOTALLY have a farting contest sometime, just you and me! It'll be fun, and I know I'll have a really hard time beating you! And..."

"Pinkie Pie, enough!" said Sunset. "Just because you think farts are funny doesn't mean everyone does."

"Urgh..." said Rarity, as she felt more gurgling followed by the all-too-familiar sensation...

BBBBBRRRRRRRAAAAPPPPFFFFFFRRRRRRRT!

Seven seconds into the fart Pinkie laughed so hard she ended up peeing herself. After her eleven-second fart was over, Rarity moaned, as her underwear was even dirtier and smellier now.

Several loud, wet farts later, Rarity could feel the pressure in her bowels. She had to go. Again. Very badly. More badly than any other time today.

She stood up and ran to the nearest outhouse. When she tried to open it, she found it locked.

"Hurry up in there!" said Rarity, banging frantically on the door. "I REALLY need to go!"

The door wouldn't open, and the pressure grew heavier.

"I don't... think I'm... gonna make it..." said Rarity, trying her hardest to hold it in.

Finally, she could hear the toilet flush. But before the door could open...

PPPPPPBBBBBBBTTTTTTTTHHHHHHHLLLLLLLSSSSSSSSHHHHHH!