It had been 12 days since Rainbow Dash had met Applejack. She had introduced her to Rarity, Pinkie Pie, and Fluttershy. They got along nicely, and they didn't care that she smelled bad most days of the week because Rainbow Dash always smelled worse. She had not washed since Applejack had washed her.

They were inside Pinkie's van, on their way to a campsite they had never been to before, Camp Everfree.

Pinkie was driving, wearing her usual jean shorts and sitting on a towel in case Rainbow Dash farted late into the drive, even though she had used the bathroom before the trip.

Rarity sat next to the left window in the middle seat, wearing her usual purple skirt. Next to her sat Fluttershy, wearing her white tank top and a short, skintight pair of green shorts.

Applejack sat next to the right window in the back seat, wearing her only pair of dirty jean shorts. Rarity didn't want to sit right next to her.

Rainbow Dash sat in the front seat, wearing her usual dirty, smelly outfit. She had sweated enough in the summer heat over the past 12 days that she had her usual stench back. All the windows were open to air out the van, so no one could really smell her.

Less than halfway into the drive, a boisterous fart made its way out of Rainbow Dash's rear. She and Pinkie Pie laughed.

"Rainbow Dash!" said Rarity.

"Excuse me," said Rainbow Dash. "I've been holding that in for almost the whole drive."

Rarity rolled her eyes, but said no more, unable to stay mad at her friend for long. With the windows open, she couldn't really smell it anyway.

...

They reached their campsite, after which Fluttershy made a run for the outhouse, having held it in for almost half the drive and been too shy to say anything. They set up two tents, and went for a walk in the woods before sitting down over a campfire and having dinner.

Rainbow brought two cans of beans for her dinner, and ate them messily, spilling some of the sauce on herself. Rarity gave her a disapproving look, but said nothing. After all, she wasn't sharing a tent with her tonight. Then, Rainbow guzzled a can of cider, spilling some of it down her front.

"Wow, even ah don't eat like that," Applejack chuckled.

...

That night, Fluttershy and Rarity changed into their pajamas and quietly tucked into their sleeping bags in one tent. Rainbow Dash, Pinkie Pie, and Applejack did not bring any pajamas or change of clothes, so they climbed into their sleeping bags as they were.

"Phew, Rainbow, you're stinkin' up the entire tent," said Applejack.

Rainbow chuckled. "Sorry."

"It's all right. Ah don't mind. You don't smell much worse than some of the things at the farm."

"Pinkie, did you go to the bathroom before you got into your sleeping bag?"

"Nope!" said Pinkie. "But I should be fine! I don't wet the bed much."

"I hope so." Rainbow could feel the effects of the beans she had eaten for dinner. Without warning, she released a series of wet farts that stunk up the tent even more.

Pinkie started to laugh, accidentally letting a few farts of her own.

"Phew," said Applejack, fanning the air with her hat. "You really need to lay off the beans, girl."

"No she doesn't!" said Pinkie in the middle of laughing. "This is the funniest thing EVER!"

Rainbow's farts got louder, wetter, and slightly longer as time went by.

Pinkie kept laughing uncontrollably, until she stopped, and a soft hissing sound could be heard coming from her sleeping bag. "Oopsie!" She giggled, while Rainbow kept farting.

Applejack managed to get to sleep before Rainbow's gas was gone.

...

The next day, Rainbow had breakfast with the other girls. As Pinkie went for a swim in the lake, Rainbow walked down a path leading to a cave. Feeling a little daring, she decided to explore the cave.

As she was walking through the cave, she heard movement behind her. She turned, and saw Fluttershy, standing still and looking nervous.

"Um... Rainbow Dash... I hope it's all right if I come with you... I brought Angel Bunny, and he ran into this cave."

"Sure."

"Stay close to me. There could be all kinds of scary things in this cave."

Fluttershy huddled close to Rainbow Dash, ignoring the smell. Rainbow smelled really bad, but Fluttershy was less afraid of this than possible dangers of the cave, plus she didn't really mind.

Unbeknownst to them, Angel ran out of the cave and back to the campsite while hiding behind a rock.

They heard a growl.

"What was that?" said Fluttershy, who was feeling very nervous.

"Whatever it is it'll have to get by me to get to you!" said Rainbow Dash.

Just then, a humongous monster appeared before them. It didn't look like anything they had ever seen before. It had fur, four legs, three horns, and a gaping mouth with a long, drooling tongue. Though its teeth didn't appear sharp, it did seem very threatening, especially when it let out a loud roar.

Fluttershy screamed and wet her shorts.

The monster snatched Rainbow Dash up in its jaws. It swished her around, intending to swallow her whole. But, then it spit her out and began gagging.

Rainbow sat up, covered in slobber from head to toe. "Yuck!" she exclaimed. As grungy and smelly as she was, even she had standards.

Then, a magic light struck the monster, which turned into a mouse. The mouse scurried into a hole.

"Are you all right?" said a girl as she walked up to them. She was yellow, with red and yellow hair, and was wearing a white and pink shirt and a pair of tight jeans.

"Yeah," said Rainbow Dash. "I guess being a grungy girl saved my life."

"Actually, I would have turned him back into a mouse before he could swallow you, and even if he did, he'd spit you out long before you could be digested."

"Oh." Rainbow was a little disappointed. "What's your name?"

"Sunset Shimmer.

"I'm Rainbow Dash. I'd shake your hand if I wasn't covered in monster slobber."

"And you are?" Sunset Shimmer said to Fluttershy.

Fluttershy mumbled incoherently, hiding the wet spot on her shorts with both hands.

"Fluttershy," said Rainbow Dash. "So, what was that thing?"

"Every few weeks magic comes here from my land through a portal," said Sunset Shimmer. "My magic stone can sense whenever it causes some sort of disturbance, like changing a rodent or animal into a monster. Then I come here as fast as possible and fix it using the stone's power."

"From your land?"

"I may look like a human, but I'm actually a pony. A unicorn, to be exact."

"Unicorns are real?" said Fluttershy, feeling better already. "They're so cute!"

Sunset blushed. "I come from a land called Equestria. Our ruler, Princess Celestia, sent me here as soon as the magic started coming through. She pays me enough bits, which turn into the equivalent amount of money when she sends it through the portal. But... I don't exactly make a lot of friends here."

"Why not?" said Rainbow Dash.

Sunset let out a loud, deep-pitched fart. Rainbow laughed.

"That's why," said Sunset. "Sometimes I can get really gassy. Not all the time, but... sometimes." She blushed. "Pony farts smell worse than human farts, and I don't think turning human made them smell any better."

"It can't smell as bad as I do. I rarely wash." Rainbow sniffed. "Ugh! That does smell bad." She sniffed her armpit, and didn't recoil. "I'm used to my own smell, but I think I smell slightly worse than your farts."

"You really think so?" said Sunset.

"I know so," said Rainbow. She held up her arm so her armpit was in front of Sunset. "Sniff at your own risk."

Sunset sniffed Rainbow's sweaty armpit.

"Phew, you're not kidding."

"But, I suppose they have to get pretty close to me to smell me. One of my friends is a lot more clean and ladylike than I am, but she puts up with my smell. Mostly because she wears perfume, though. But she does have air freshener. Maybe she can use it if you fart in front of her."

"Really? That's wonderful."

"Be careful about farting in front of my pink friend. Sometimes she laughs so hard at farts that she wets herself."

Fluttershy blushed.

"I can fart silently if I want to," said Sunset. "It's really the smell that bothers people."

"Don't be offended if Rarity gets disgusted," said Fluttershy quietly.

"I won't," said Sunset. "I completely understand how she feels."

"And, I think farts are funny too." Rainbow let out a very wet fart. Sunset giggled a bit.

"Are there any more... magical creatures here?" said Fluttershy nervously.

"This was the only one. My stone's not picking up any more activity."

"What about Angel? Did that thing eat him?"

"If it did, it would have spit him out. Who's Angel?"

"My pet bunny."

"I saw a white bunny hop by me on my way into the cave," said Sunset. "It followed this pink girl as she came out of the lake. Maybe the girl Rainbow Dash was talking about."

"That must have been Angel! He's safe!"

They made their way back to the campsite, Sunset farting several times along the way. On their way back, they stopped by a lake.

"We should probably wash off," said Rainbow. Rainbow and Fluttershy walked into the lake, Fluttershy lowering herself neck-deep into the water while Rainbow sumberged herself completely to rinse the drool off her. When she emerged, she still smelled bad, but not so much as before.

"This lake is nice and refreshing," said Fluttershy.

Once she was out of the lake, they returned to the campsite, and Rainbow Dash introduced them to Sunset, who explained where she was from and what she did.

"And, I hope this doesn't put you off, but... I fart a lot. I just can't help it. Some days I don't, but when I do, I'm really gassy. And it smells almost as bad as Rainbow Dash. I can understand if any of you don't want to hang out with me, but if you do, maybe you could use some air freshener if it's one of those days?"

"Darling, as unladylike as it is to break wind so much, I can put up with some of my friends being VERY unladylike," said Rarity. "I'd prefer if no one did that in front of me, but if you really can't help it, I do have some air freshener I can use. I mainly meant it for Rainbow Dash, of course, if we go into an enclosed area and she starts stinking it up, but I'd gladly use it if..."

Rarity sniffed, winced, grabbed her can of air freshener, and sprayed. Sunset blushed and giggled nervously.

"At least you're... quieter about it... than her," said Rarity. "I can put up with it."

"That's great," said Sunset, feeling relieved.

"And I brought a few extra sleeping bags," said Pinkie, who had her sleeping bag from last night hanging up to dry. "You can sleep in my tent with me, Applejack, and Rainbow Dash! You two can fart as loud as you want!"

Sunset looked at Applejack.

"Go ahead," she said. "Actually... Rarity, would you be able to smell me inside the tent?"

Rarity sniffed Applejack and recoiled slightly. "Not unless I was closer to you. You don't smell as bad as Rainbow Dash. I don't think you'd befoul my tent as she would. And even if you did, my air freshener can handle that. You could sleep with me and Fluttershy. Just... not too close."

"I don't mind being between you two," said Fluttershy.

"And, I'll use the outhouse before going to bed," said Pinkie. "There's gonna be a lot of farting in my tent!"

Pinkie, Rainbow, and Sunset laughed.

Author's Notes:

Sunset probably does fart a little more in canon, but definitely not as much as she described here. Unless she ate beans or something, of course!