"Rainbow Dash, just who I wanted to see," said Rarity. "How would you like to take part in a fashion show today featuring these beautiful dresses?" She showed Rainbow Dash some of them. "These are only five of the fifty I'm entering into the fashion show!"
"Eh, not really interested," said Rainbow Dash.
"Please please PLEASE?"
"I'd rather be playing soccer with Applejack."
"If you do, then, next chance we get, I'll... I'll eat one of those mushrooms you found and have a farting contest with you and Pinkie Pie."
"For real?"
Rarity held out her hand and Rainbow Dash shook it. Part of Rarity was even looking forward to the farting contest.
...
That afternoon, Rainbow Dash appeared onstage wearing each of Rarity's dresses, each one over her main outfit. On the 11th outfit, she farted loudly onstage, causing the audience to laugh. And because she had sneaked in a soccer game with Applejack right before the fashion show, she had drank lots of cider afterward, and ended up wetting Rarity's 50th outfit, a sparkly purple dress. She was a little embarrassed, but found the situation funny as well. Rarity was miffed, but assured her the deal was still in place.
...
The next day, Rainbow Dash, Pinkie Pie, and Rarity had the entire day to themselves, so they arranged for the farting contest to take place. Rarity was wearing her usual purple skirt and a dirty pair of panties from earlier this week. She had Rainbow show her where the mushrooms were, and Rainbow suspected an ulterior motive behind it. Rainbow was wearing her usual black compression shorts, which had almost dried since yesterday.
They reached Rainbow's house at 7:50 in the morning to find Pinkie Pie and Sunset Shimmer sitting on the couch waiting for them. Today Pinkie Pie was wearing her usual pink skirt, and Sunset was wearing a white and pink T-shirt and jean shorts.
"What's Sunset doing here?" said Rarity.
"I asked Sunset and Twilight if they wanted to go another round of the farting contest," said Pinkie. "Twilight was too busy reshelving, but Sunset said she's up for it!"
Sunset blushed lightly. "It was a little funny last time. I didn't know you were into that kind of thing too."
"I'm not," said Rarity. "I made a deal with Rainbow Dash so she could wear my dresses at the fashion show."
"We should invite Applejack," said Rainbow Dash.
"I already asked her, and although she loves to compete with you, she doesn't find it very funny."
"Well that's one thing we have in common," said Rarity.
"So are we gonna have three mushrooms today?" said Pinkie Pie.
"Hell yeah!" said Rainbow Dash. "And, I cooked some beans for everyone. Except Rarity, who requested the salad. Of course the rest of us will be farting a LITTLE more than her!"
"I said I'd compete," said Rarity. "I didn't say I'd try to win."
Rainbow was at least satisfied she'd get to hear Rarity fart for six hours straight.
"Now, everyone, time your own farts, cause no one else is going to, and be honest about how long they are! And if you have to use the bathroom, you can go ahead, but any farts in the bathroom won't count, cause they'll be harder to hear over the farting outside!"
"That doesn't bother me," said Rarity. "I just hope I remember to pull my underwear down this time." She blushed.
Pinkie giggled. "I'll probably stay in here the whole time!"
"Oh, and no face-farting!" said Rainbow Dash.
They each ate three mushrooms and washed them down with a glass of water.
Rainbow opened all the windows and turned on the fan. "We might need that."
Rarity was grateful.
Immediately after, a series of loud, boisterous farts erupted out of all four girls' rears, ranging from one second to four. They didn't bother timing them yet, because their farts weren't long enough, but Rainbow and Pinkie were laughing hard, and Sunset was giggling a bit. Even Rarity enjoyed letting loose a little.
BBBBRRRRRRT! PPPPPFFFFFT! FFFFFFFFRRRRRRT! BBBBRRRAAAP!
PPPPFFFFT! FFFFFFRRRRRT! PPPPPPRRRRRRT! PPPPFFFFRRRRT!
FFFFFFRRRRRRRRT! PPPPFFFFT! FUUURRRRP! PPPPRRRRRRT!
BBBBBRRRRAAAAP! FFFFFRRRRRRT! PPPRRRRRRRT! PPPPBBBBTTTTH!
After an hour of farting, their farts started to get longer, ranging from three seconds to thirteen.
Sunset lifted her leg.
BBBBBBBBBBBRRRRRRRRRRRRRRRRRT!
She blushed lightly and giggled at the sound of her deep-pitched, 12-second fart.
"Ooooh, let's see if I can top that!" said Pinkie, and she bent over.
PPPPPPPPPPPPPPPPPRRRRRRRRRRRRRRRT!
A higher-pitched, 13-second fart blasted out of her rear, blowing her dress back so her dark pink panties were visible. Rainbow and Sunset giggled, and so did Pinkie when she was done.
"This feels like a big one," said Rainbow Dash. As Pinkie, Sunset, and Rarity let out some much shorter farts, Rainbow lifted her leg.
BBBBBBBBBRRRRRRRRRRRRRAAAAAAAAAAAAAAAAP!
This was the loudest fart today, and, so far, the longest, at 16 seconds. Rainbow looked very proud of herself.
"Nice one Dashie," said Pinkie, slapping Rainbow's butt. "You're gonna win this for sure!" PPPPFFFFFFT!
"Uhhhh..." groaned Rarity, who had been trying to hold them in now, either to not be heard farting as much, or because she actually wanted her farts to be longer, she wasn't sure which and was a little annoyed at herself for possible thinking the latter. She turned away so she couldn't see their faces when she let this one out.
FFFFFFFFFFFFFFFFFFRRRRRRRRRRRRT!
Rarity farted for 14 seconds. It was a loud, wet fart that blew her dress back just like Pinkie's longest fart.
"Nice underwear, Rarity!" giggled Pinkie at the sight of Rarity's purple panties, farting a few more times. Rainbow and Sunset giggled as well, also letting a few short farts.
Rarity blushed, and tried to hold it in again.
Sunset let out three loud farts, each one 8 or 9 seconds long.
In the middle of Sunset's second fart, Pinkie let out a higher-pitched 11-second fart.
Rainbow farted for 16 seconds again just as Pinkie was almost done farting. "Damn, the same as last time!"
"I didn't think this could be so much fun," said Sunset. She bent over and released a loud, wet fart that lasted 15 seconds.
"Wow, you almost beat my longest fart!" said Rainbow, slapping Sunset's butt playfully. Sunset giggled.
Rarity couldn't hold it any longer. She turned away and bent over from the effort of holding it in. She knew it was inevitable but she wanted to put it off as long as possible. Or possibly win this contest.
PPPPPPPPPPPPPPFFFFFFFFFFFFFFFFFRRRRRRRRRRRRRRRRRRT!
This fart was not as loud as Rainbow Dash's last fart, but lasted 17 seconds, and blew Rarity's dress back again.
"If I didn't know any better I'd say that's the longest fart in this entire contest!" said Rainbow Dash, slapping Rarity's butt.
Rarity blushed and giggled nervously.
Over the second hour of the contest, their farts didn't get any longer than 16 seconds. On the third hour, however, they started to get as long as 26 seconds. Rainbow was able to set the record at 27, although each of the other three was able to fart for 26 seconds exactly.
BBBBBBBBBBRRRRRRRRRRRRRRAAAAAAAAAAAAAAAAAAAAAAAAAP!
PPPPPPPPPPPPFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFTTTTTTTTTT!
FFFFFFFFFFFFFFFFFFFFFFFFFFRRRRRRRRRRRRRRRRRRRRRRRRRT!
PPPPPPPPPPPPFFFFFFFFFFFFRRRRRRRRRRRRRRRRRRRRRRRRT!
The room was smelling a lot like farts even with the window open and fan on, but they didn't mind, and it was still better than being face-farted. They were also drinking lots of water, for they were getting very sweaty from farting so much.
Sunset let out a loud, deep-pitched fart for 23 seconds that had Rainbow and Pinkie laying on their backs, kicking their legs in the air from laughing too hard. Sunset giggled, for Pinkie's underwear was visible again. Rainbow and Pinkie laughed so hard they involuntarily let out more farts, which made them laugh even harder! Pinkie also wet herself, for she was so excited she hadn't taken her morning pee.
"How long will three mushrooms make us fart for?" said Sunset, farting loudly at the end of the sentence.
Rainbow stood up, pausing to fart. "Six hours! So, we've got about... 3 hours and 21 minutes to go!"
"I forgot how long these-" PPPPPPPFFFFFFFFT! "last for," said Rarity.
"Just have fun with it," said Rainbow. "You gotta admit, it is kind of fun to fart!" She lifted her leg and farted for 8 seconds.
Rarity had to admit this to herself. She farted for 10 seconds, and giggled.
At 11:00, around the end of the third hour, they decided to have their lunch and get it over with. They continued to fart, and Rainbow and Pinkie had a hard time not laughing so they could get their food down. Rarity tried to hold it in at the table but several loud, long farts made their way out of her.
Once they were done, they continued farting for another hour. Rainbow and Pinkie each farted for 31 seconds, while Sunset and Rarity's longest farts were 30 seconds.
At the end of the fourth hour, all four girls had to pee, even Pinkie, who was drinking lots of soda instead of a glass of water every once and a while.
Rainbow and Pinkie sighed and peed where they stood, farting for most of it and laughing.
"We're already soaked with sweat, so why bother?" said Rainbow.
Rarity gave them a disapproving look and ran to the bathroom, farting the entire way, and got in. Sunset waited for her, farting several times as she did so.
But as soon as the next, boisterous, 28-second fart came along, it was too late. She quickly got a towel and mopped up the puddle before Rarity walked out, wet only with sweat. Rarity had been combing her hair, seeing the state it was in from her intense farting, and hadn't noticed that Sunset had needed to go, too. Because Sunset's shorts were already dripping with sweat, Rarity didn't notice anything now.
For the fifth hour, the farts ranged from one second to 43. At the end of the fifth hour, Rainbow farted for a minute and four seconds.
BBBBBBBRRRRRRRRRRRAAAAAAAAAAAPPPPPPPPPPFFFFFFFFFFFFRRRRRRRRRRT!
"Hey, that breaks my record from last time," said Rainbow, slapping her butt while Pinkie kicked her legs in the air laughing, farting repeatedly and tears streaming down her face from laughing too hard.
For the sixth hour, they continued to fart, knowing the contest was almost over. None of them could get their farts longer than 45 seconds.
In the last ten minutes, all four of them farted at the same time.
BBBBBBBBBBBBBBBBBBBBBBBBRRRRRRRRRRRRRRRRRRRRRRRRT!
PPPPPPPPPPPPPPPPPPPPPPPFFFFFFFFFFFFFFFRRRRRRRRRRRRRT!
FFFFFFFFFFFFFFFFFFFFFFFFFFFRRRRRRRRRRRRRRRRRRRRRRRRRRT!
PPPPPPPPBBBBBBBBBLLLLLLLRRRRRRRRRAAAAAAAAAAAPPPPPPPPFFFFFFFFFPPPPPPPFFFFFFFRRRRRRT!
Pinkie's fart was 47 seconds. Rarity's was a second longer. Rainbow's was a second longer than Rarity's.
Sunset's fart was loud, boisterous, wet, and lasted a minute and ten seconds.
"Wow," said Rainbow Dash, farting again out of shock. "How long was that?"
"70 seconds," said Sunset.
"That's even longer than my high score!"
Sunset quickly put her hands on her butt to see if she'd made a mess in her shorts, but she hadn't, even though they were still soaked with sweat.
Pinkie even looked at Sunset's butt up close. "Nope, no brown stains!" She slapped Sunset's butt lightly, and Sunset giggled. Pinkie let out a short but loud fart, and suddenly remembered. She quickly got away from Sunset's rear end before Sunset started farting again.
They continued to fart for the last several minutes, but the most Rainbow was able to get was a 50-second fart. Rarity farted for 50 seconds too.
Once their gas was gone, Rainbow, though shocked that she had lost a farting contest for the first time, said "Good game, Sunny," and did the rump bump with Sunset. So did Pinkie. Rarity didn't, not wanting to acknowledge how much fun she had.
"Don't tell anyone else that I beat you at a farting contest," said Sunset. "Except Twilight, Applejack, and Fluttershy."
"And don't tell anyone that I took part in this vulgar contest," said Rarity.
All four girls were dripping with sweat and smelled like farts, but they had greatly enjoyed this contest.
"It's a shame Twilight had to miss this," said Sunset.
"Or that Applejack won't compete," said Rainbow Dash.
"Of course, if Fluttershy took one of these she'd probably fart silently," said Pinkie. "I don't think she's even capable of farting loud."
"Let's take a bath in my hot tub," said Rainbow Dash. "Wash off the sweat and the fart smell."
"Do we get to fart in the tub this time?" said Pinkie.
"Goodness no, not this time," said Rarity. "This time there are two of us who don't find it funny to break wind in the tub!"
Sunset looked a little disappointed.
They got into the hot tub, again without changing out of their already-wet outfits.
"Rainbow Dash?" said Sunset.
"Yes?" said Rainbow.
"Where can I find those mushrooms?"