Author's Notes:

Done by request, and still set in World 2.

I've been getting so many requests lately I can't seem to catch a break.

Twilight Sparkle was bored, having finished studying for the day. Only Spike was in the house with her, and she was wearing her tight purple shorts, with white panties underneath.

"Hey Spike, wanna have a farting contest?" said Twilight. "Best out of three for who has the longest fart, the loudest fart, and the stinkiest fart."

"You bet!" said Spike.

Twilight cooked two big plates of beans. And she put fart powder of her own creation on it. Both she and Spike wolfed the beans down.

"Let's take turns farting," said Twilight. "So we can smell them and tell which one stinks the most."

About ten minutes later, Twilight lifted her leg.

FFFFFRRRRRRT!

Spike lifted his leg.

PPPPPPRRRRRRRT!

Twilight giggled, and farted louder.

For a while, their farts were no longer than five seconds. They each had the same maximum volume, and the same smell.

Then Twilight let out a boisterous wet fart.

PPPPPBBBBTTTTTHHHH!

This fart was five seconds long, but it smelled worse than any of the other farts.

"Phew, I don't think I can top that," said Spike.

Twilight giggled, fanning the smell away with her hand.

Then Spike let out a short but very loud fart.

"Right now you're winning for loudest fart," said Twilight.

"All right!" said Spike.

"Unless I fart louder than that..." She paused to fart again. "...or unless you can fart stinkier than me..."

Spike farted again.

"...it comes down to the longest fart!"

They held it for longer to try to fart longer.

Twilight raised her behind in the air.

PPPPPPPPPFFFFFFFFFFFFFRRRRRT!

This fart was eight seconds long, though not as loud as Spike's fart.

"Ahhhh," Twilight sighed of relief. "I'm winning for longest fart!"

"My turn!" said Spike, and he let out a loud fart that lasted nine seconds. "I'm winning now!"

They continued to fart for another half hour. Their farts didn't get any longer, louder, or smellier than the top ones.

"This feels like a big one," said Twilight. She lay on her back with her legs in the air.

BBBBBBBBBRRRRRRRRRAAAAAAAAAAAP!

This fart was only slightly quieter than Spike's loudest fart, but it lasted ten seconds. Twilight thought her panties felt a little dirty, but she was satisfied that she was winning.

Spike lifted his leg.

BBBBBBBBBRRRRRRRRRRRRRRRRT!

To his dismay, this fart was nine seconds long.

"I'm still winning," said Twilight. After about a minute, she lifted her leg and farted for nine seconds. Spike farted for eight. Then Twilight farted again.

PPPPPPBBBBLLLLLSSSSSHHHH!

Twilight's eyes went wide as she made a mess in her shorts. But she wasn't embarrassed, for she liked soiling herself. She giggled, enjoying the sensation.

"Looks like that's the end for you," said Spike, and he farted one last time.

PPPPPPPPPPPPPPRRRRRRRRRRRRRRRTTT!

This fart was ten seconds long.

"Looks like we tied!" he said.

"Looks like we did," said Twilight. "And I need to change my shorts. But that can wait a while."

"How about we have a pooping contest?" said Spike. "Where whoever makes the biggest poop wins?"

"Ooh, sounds like fun! And let's try to go in as many places as possible!"

Twilight cooked a big meal of stuff that would make them have to poop really badly, including a glass of prune juice. She and Spike had equal amounts.

"I'll start," said Twilight, and she dumped her brown mess out of her shorts and underwear onto the kitchen floor. Her shorts still had a brown spot at the butt and her panties were heavily soiled, but she didn't mind.

Soon the urge to poop hit them.

"My turn," said Spike, and he took a dump onto the living room floor.

Twilight pulled down her shorts and released the contents of her bowels on the couch.

Once the second wave hit, Spike climbed onto the toilet. "I don't usually do this, so it's the perfect spot!"

When Spike climbed off the toilet, Twilight looked into it. "You're winning so far. Oooh...."

Twilight climbed into the bathtub, pulled her shorts down, and made a brown mess in the tub bigger than what was in the toilet.

"Well, this is out," said Twilight, flushing the toilet.

Drinking more prune juice when they felt they were running out, they continued to poop throughout the house: In the basement, on the kitchen chairs, on Twilight's bed. Each of them did their business in each place once, and so far Twilight was winning with the mess she had left in the basement.

The house was starting to smell, of course. But Twilight would have it cleaned up as usual.

They waited as long as possible in the hall.

"This will be the biggest one," said Spike, and he pushed out enough logs to beat Twilight.

"Ooh..." Twilight held it as long as possible, then pulled down her shorts and let a brown mess cascade out of her rear.

It was bigger than Spike's.

"I win!" said Twilight.

"It's not over yet!" said Spike.

But they didn't feel an urge to poop for another half hour.

"I guess you win," said Spike. "But I'll train hard for next time!"

Twilight giggled. "Well, that will be interesting. Oh, I really need to pee." A hissing sound could be heard as her shorts grew wet. "Ahhhhhh..."

"Wanna have a holding contest next?" said Spike.

"Maybe some other time," said Twilight. She suddenly farted, making another big mess in her shorts. "Heeheehee!"