Author's Notes:

Another request.

The Main 6 were having a sleepover with Starlight Glimmer at Princess Twilight Sparkle's castle. After having dinner together, they set up their sleeping bags in a big room somewhere in the castle.

"We'll have no water," said Twilight, "because a water main broke earlier this morning."

"As long as I don't get my hooves dirty," said Rarity.

They did makeovers, smores, ghost stories, and pillow fights for a while, until they were all hit with abdominal pains at once, and their stomachs started gurgling. It seemed that what they had eaten hadn't settled well with them.

Rainbow Dash and Pinkie Pie giggled a bit, knowing what was to come, while Rarity and Fluttershy looked particularly uncomfortable.

After a few minutes, Rainbow Dash lifted her leg and let out a loud fart, chuckling a bit.

Pinkie Pie farted nearly as loud as Rainbow Dash, giggling.

"Ugh," said Rarity, disgusted. "That's absolutely vile."

Twilight groaned in extreme discomfort.

PPPPPFFFFFFFT!

She blushed as a wet fart made its way out of her. Rainbow Dash and Pinkie Pie giggled, Pinkie accidentally farting a few more times.

"Twilight, that was not very princesslike!" said Rarity.

"No, but can you blame her?" said Applejack, farting loudly with neither shame nor amusement.

The room was starting to smell already, so Fluttershy was sure no one would notice. She released a silent fart, and blushed a little.

Starlight held it in for as long as she could, but she realized she couldn't, so she let out a loud fart, blushing beet red.

Twilight farted again. It seemed she didn't want Starlight to feel too ashamed.

"Really," said Rarity. "It is most unbecoming of a princess to break wind so loud..."

FFFFFFFFFFRRRRRRRRRT!

Rarity blushed with embarrassment.

"Look who's talking," said Rainbow Dash. "We should have a farting contest!" She lifted her leg.

BBBBBBRRRRRRAAAAAAAP!

Pinkie Pie giggled and raised her rump in the air.

PPPPPPPFFFFFFFFRRRRRRRRT!

Applejack didn't find it funny, but she did like to compete with Rainbow Dash, so she stepped forward and farted longer than Pinkie but a little shorter than Rainbow Dash.

Twilight thought this might be fun, despite her initial embarrassment. Looking overly enthusiastic, she turned around, raised her behind in the air, and let out a loud wet fart that was about as long as Pinkie Pie's fart, which was about seven seconds.

"You're actually engaging in this vulgar contest?" said Rarity. "That is so un..."

PPPPPPPRRRRRRRT!

Rarity hung her head in shame.

Starlight farted again, feeling a little less ashamed since her mentor and three of her other friends seemed to like it so much. Fluttershy farted silently again.

"STOP!" said Pinkie Pie after a long fart that was wetter than before. "I... I think I need to do more than just fart!"

"So do I," said Rainbow Dash.

The discomfort seemed to hit all the ponies at once. They needed to go - bad!

"Is the water main fixed yet?" said Rarity.

Twilight turned on a tap. Nothing. "No. I don't think it'll be fixed until tomorrow."

"I can't hold it that long!" said Rainbow Dash.

"We'll just have to fart out the pressure!" said Pinkie, who let out a loud wet fart.

Rainbow Dash giggled and farted again. Twilight and Applejack did the same, and reluctantly, so did Starlight, Rarity, and Fluttershy, Fluttershy's farts being wet and audible now, much to her embarrassment.

After about twenty minutes of holding it in, they stopped farting, afraid they would soil themselves - to whatever extent as they weren't wearing anything - if they tried farting again.

"Screw this," said Rainbow Dash, and she picked up a bucket, ran to a corner, positioned her rear above the bucket, and let go. She sighed in relief as a wet brown mess noisily made its way out of her rump and into the bucket, filling it up completely.

Rarity nearly gagged in disgust.

"I'll take care of this," said Twilight as soon as Rainbow Dash had rejoined them. She walked over to the bucket, trying not to breathe in through her nose, and, with great effort, cast a spell to make the poop disappear. She was so desperate that she thought this might not be a bad idea, so with a loud fart, she relieved herself into the bucket as well, and made it disappear. She walked back to the other ponies, blushing lightly.

"Oooooh," said Pinkie Pie, and she ran to the bucket, positioned herself above it, and released the contents of her bowels into the bucket, giggling at how loud it was.

After Twilight cleaned out the bucket again, Fluttershy, Applejack, Rarity, and Starlight continued to hold it for another ten minutes.

"Buck this, I ain't holdin' it any longer," said Applejack, and she ran over to the bucket and relieved herself into it. Surprisingly this was not as loud as Rainbow, Twilight, and Pinkie.

"Hurry up, I gotta go again!" said Pinkie Pie.

Once Applejack was done, Twilight made her shit disappear with her magic. Pinkie immediately ran to the bucket, and sighed in relief while the bucket filled up with a brown mess, a little more quietly than last time.

"I can't... I don't think I can hold it," said Starlight, letting out a quiet but audible fart.

"Use the bucket," said Twilight once she'd returned from cleaning the bucket again. "It's all right. And there's no way we can hold it all night."

Starlight ran over to the bucket, blushing a little, and released the contents of her bowels. To her relief it was silent, but the smell was overpowering. She returned to the other ponies, and Twilight magically cleaned the bucket again.

"Um... I think maybe I should do that too," said Fluttershy quietly. "Just... please don't look."

"Hurry up, cause I gotta go again!" said Pinkie Pie.

"How?" said Rainbow Dash.

"I had more to eat than any of you!" said Pinkie. "Probably more of whatever it was that made us..." She farted loudly and giggled a bit.

"Oh... I have to poop really badly too!" said Rainbow Dash.

Fluttershy barely heard them. Blushing beet red even though no ponies were looking in her direction, she squeezed out several brown logs into the bucket, relieved that it was silent. She walked back to the other ponies.

"Wait a bit Twilight," said Rainbow Dash, and she ran over to the bucket that was still half-full.

"Hey!" said Pinkie Pie. "I REALLY need to go!"

Rainbow sighed as a smelly mess cascaded from her butt into the bucket, overflowing it a bit.

"All right Twilight, now clean it up," she said.

As Twilight walked over to the bucket to clean it up, Pinkie squirmed, letting another wet fart. Finally, Twilight returned, and Pinkie ran to the bucket, but she was only halfway there when her bowels automatically let go. She blushed as a pile of manure quickly formed on the ground behind her. She sheepishly walked over to the other ponies, and Twilight used her magic to clean it up.

"Pinkie Pie, did you just..." Rarity could feel she couldn't hold it any longer. "Fine, I guess I have no choice then."

She ran over to the bucket and let a wet mass of dung make its way out of her tush and into the bucket. She blushed, but was at least relieved that it was silent. She walked over to Twilight, hoping the ponies wouldn't say a word, and Twilight cleaned up the bucket as usual.

As soon as Twilight returned, she felt she needed to poop again. She let out a wet fart, but tried to hold it for as long as she could.

Pinkie ran to the bucket again. PPPPPBBBBBBLLLLLRRRRRT!

Fluttershy accidentally farted loudly. "Oh my... I... I need to use the bucket again."

As Fluttershy released the contents of her bowels into the bucket again, Twilight felt more uncomfortable. She walked over to the bucket to make the smelly mess disappear, and considered using the bucket again, but she decided to hold it in as long as she could so that she'd have to do this less.

"Damn it!" said Applejack, and she ran to the bucket again.

"Me next!" said Rainbow Dash as she flew over to Applejack just as she was positioning her rump above the bucket.

"Rainbow Dash, I'd appreciate if it you weren't so close," said Applejack.

Rainbow groaned and flew to another corner.

Applejack relieved herself into the bucket. As soon as she was back with the group, Starlight ran to the bucket as fast as she could. Rainbow Dash flew over to the bucket just as Starlight had begun emptying her bowels.

"Rainbow Dash!" said Starlight, blushing profusely.

"Come on!" said Rainbow Dash.

She hovered in the air for a few seconds, her back turned to Starlight. Once Starlight was done, the bucket was completely full. As she walked back to the other ponies, Rainbow Dash wasted no time. She positioned her rump above the bucket and let the second wave of manure make its way out of her, overflowing the bucket. The smell was overpowering, but Rainbow couldn't deny the relief.

As soon as Rainbow rejoined the ponies, Twilight walked over to the bucket. It took a bit more effort than usual to make this mess disappear, especially since she was holding it in as hard as she could.

"You know you really shouldn't hold it for so long," said Applejack once Twilight had returned.

"I don't want to do that too many..."

PPPPPPPBBBBBLLLLLSSSSHHHH!

Twilight froze as she made a big mess on the floor right in front of the other ponies. She blushed and giggled nervously.

"Ugh, you couldn't hold it in just a little longer to get to the bucket?" said Rarity, who couldn't stand the smell.

"Don't worry about it Twilight," said Pinkie Pie. "I did the same thing!"

Once Twilight pulled herself together, she magically made the mess vanish.

Pinkie ran to the bucket and relieved herself again.

Before long, Rarity felt the pressure return, and reluctantly walked over to the bucket, only to find it half full, as Twilight had not cleaned it since Pinkie had used it. She walked back over to Twilight, accidentally farting loudly.

"Can you please clean the bucket? I can't stand the smell when it's... not empty."

"Oh. It's getting tiring having to cast that spell so many times, but I'll do it for you."

Rarity let out another wet fart before Twilight returned, and ran to the bucket, but just as she was about three quarters of the way there...

BBBBBBBLLLLLLLRRRRRRRRT!

Rarity blushed as she made a noisy mess on the floor. Rainbow Dash and Pinkie Pie laughed, until both mares felt they needed to go again.

As Rarity walked back to the other ponies, Rainbow Dash and Pinkie Pie made a break for the bucket. Pinkie got there first, sighing of relief as she released the contents of her bowels with a loud fart. Rainbow Dash giggled a bit at the sound, but then she was unable to hold it in any longer. Before long another mess appeared on the ground next to Rarity's, only slightly smaller.

Twilight nearly threw up as she cleaned the bucket and the two piles of manure on the ground with her magic.

Fluttershy, Applejack, and Starlight each used the bucket one more time that day, and Pinkie three more times, not making it all the way to the bucket on the third occasion. Rainbow Dash, one more time. Twilight and Rarity, no more times. After that, they no longer felt the need to poop, so they resumed their activities and got to sleep.

The next morning, the water main had been fixed, and the castle had water again.