Author's Notes:

Another requested chapter by the same person who requested the previous chapters, and again set in the alternate reality.

It had been a few days since Twilight Sparkle had soiled herself. She had cleaned up everything in her house nicely. Though her panties had a slight brown stain, her pajama pants were spotlessly clean after being washed.

She was now driving a car on a camping trip with Sunset Shimmer, both wearing their Legend of Everfree shorts: Dark purple for Twilight, and gray for Sunset.

They had eaten breakfast together at a restaurant on their way out of town. The omelettes hadn't quite been cooked all the way, and one of the recipes they had shared seemed to contain prunes. Combined with the fact that they had stuffed themselves having an unusually large meal with their friends last night, both of them were very uncomfortable.

Twilight didn't mind pooping around Spike, and liked the feeling of messing herself, but she was a bit embarrassed at the thought of doing either in front of someone else. So, she tried her hardest to hold it in. She let out a loud, wet fart, and blushed, giggling nervously.

Sunset had never soiled herself as far as she could remember, and she didn't want to do it now, in front of Twilight. She moved her butt slightly and farted loudly. Her fart was stinkier than Twilight's, and she opened the window, blushing with embarrassment.

Nine minutes later, Twilight farted again, slightly louder, longer, and wetter than last time.

"Sorry about that Sunny," she said, blushing, "but I can't help it. I REALLY need to go!"

"So do I," said Sunset, releasing an equally loud, equally wet, slightly longer fart.

"There's a gas station coming up. I hope I can hold it until then." PPPPFFFFT!

"You and me both." FFFFFFFFRRRRRT!

Over the next 23 minutes, they became more uncomfortable, and their farts got wetter and more frequent. By now they didn't feel embarrassed about farting in front of each other anymore, since the other was doing the same and their bigger concern was not having an accident.

They reached the gas station, and rushed to the bathroom, but, sadly for them, it was out of order.

So, they ran back into the car and resumed their drive toward the campsite.

"How much longer until we get there?" said Sunset only a minute in, fidgeting and farting loudly.

"It's another hour away," said Twilight.

"Are there any more gas stations?"

Twilight let out another boisterous wet fart. "There's one 40 minutes away."

"I don't think I can hold it that long." Sunset farted for six seconds, and this fart was so wet that her underwear felt a little dirty.

Not twenty minutes into the drive they had to pee too, and fidgeted even harder. With the effort of holding in the contents of their bladders and bowels, they were now farting involuntarily.

About five minutes later, Twilight farted so hard she thought she soiled herself, but although her panties felt dirty there was no mess in them. The brief moment of relief was interrupted by a small spurt of pee dampening her panties.

"I can't hold it anymore," she said, and she pulled over on the side of the road. She ran to the trunk of the car, opened it, and pulled out two large tupperware containers.

Sunset got out of the car and walked over to Twilight, sweating profusely from the effort of holding it in. "What are you doing, Twily?"

Twilight knew it would be embarrassing going to the bathroom in front of Sunset, but it would be more embarrassing soiling herself in front of her, and she knew it would be more embarrassing for Sunset to do the same. Even though she knew she could clean up the stains on the car seats easily if they did.

"I can't make it to the gas station, so I'll do my business in this container. If you don't think you can make it, you should probably do the same."

Sunset was very nervous. She didn't think she could pee or poop anywhere other than a toilet behind a closed door with no one else inside. But, when a three-second leak and a boisterous five-second fart made their way out of her, she had to accept.

Twilight gave one container to Sunset, and they walked to the side of the road, hoping their car would block them from the view of anyone driving by. They were dribbling a bit by the time they were ready. They pulled down their shorts and panties, squatted above the containers, and let it all out.

All Twilight or Sunset could hear was the sound of their pee hitting the plastic, and the gassy sound of shit making its way out of their butts. Both girls blushed beet red at peeing and pooping so loudly right next to each other, and their lower halves naked. But, it was preferable to having an accident in the car.

After about 13 seconds, they were done pooping, but still peeing. At this point, the undeniable feeling of relief made them forget about their embarrassment, and both Twilight and Sunset couldn't help but sigh.

Once they were done, they pulled their shorts back up, got back into the car, and continued on their way to the campsite.

Their underwear felt dirtier than before, and their shorts were a little damp from how much they had leaked, but at least they had avoided soaking them and making a mess in them.

They had taken the very full containers back into the car, on the floor of the back seat.

"Ugh, even with the windows open this smells awful!" said Twilight.

"This smells even worse than my farts," said Sunset. She let out a loud fart and giggled a bit.

...

They reached their campsite and set up their tent. By now their shorts had dried, but still smelled a little. Despite their slightly dirty state they had a lot of fun at the camp.

Until it suddenly started to rain hard. Twilight and Sunset immediately ran into their tent. They were soaked through before they got inside.

...

It was now bedtime. Twilight and Sunset were wearing their pajamas, and a fresh pair of panties. They were ready to go to bed, except for one thing: They really needed to poop, again. And they needed to pee. It was still raining hard outside, and thundering and lightning. Twilight and Sunset were trying their hardest to hold it in, farting as loud and wet as they had in the car.

Twilight's heart was racing. As embarrassing as this was going to be, a part of her felt excited about it, and hoped Sunset wouldn't mind too much.

"It doesn't look like this is going to let up any time soon," she said, farting loudly.

"What are we gonna do?" said Sunset, also letting a wet fart.

"We have no choice but to go in our pajamas."

"No. There is no way-" BBBBBRRRRAAAAP!

"There's no way we can make it." PPPFFFFFFRRRRRRRT! "I'm doing it right... now!"

Twilight relaxed and stopped trying to hold it in. She sighed in relief as she released a wet, brown mess into her pajama pants and panties. About three seconds in she started peeing. She blushed a little at doing this in front of Sunset, but couldn't deny the relief, and how much she liked it in other ways.

Sunset stared as the wetness soaked the legs of Twilight's pants, and a smell stinkier than her own farts entered her nose. The sight made her leak a little, and fart so loud and so wet that her underwear felt dirty.

But... she did have to go really badly. And Twilight was doing it, so she wouldn't make fun of her.

She hesitated, and then released the contents of her bladder and bowels into her underwear and pajamas. She had to admit, she did like the warm feeling around her butt, and the warm wetness soaking her crotch, flowing down her legs, in addition to the relief.

"Ahhhhhh..." Sunset couldn't hide how much she was enjoying this. Twilight giggled. Sunset blushed a little, but knew she wasn't making fun of her, and besides, she was still peeing.

They both finished filling their pajama pants with pee and poop, and were almost disappointed that it was over. Still, they did like the feeling of it. They sat down on their sleeping bags, each feeling her mess squish under her rear and greatly enjoying the sensation. They were wet and smelled really bad, but they didn't mind.

"That wasn't so bad," said Sunset.

"I didn't think it would be," said Twilight. "Because, this wasn't my first time." She didn't even blush, for she knew Sunset loved messing herself as much as she did now.

That night, they tried to get to sleep, but found themselves extremely gassy from some odd berries they had eaten at camp, farting in their heavily-soiled pajamas.

Twilight let out a particularly boisterous wet fart. "I think I might have just made my pants even messier." She giggled.

Sunset farted louder, wetter, and deeper-pitched. "I know I definitely did." She laughed.

They farted for another hour straight, occasionally further soiling their pajamas and laughing every time.

"I have to go pee," said Twilight.

"Me too," said Sunset.

Both girls let out sighs of relief in unison.

...

The sound of the rooster woke them up the next morning. They initially cringed at the horrible smell, but remembered what it was, and no longer felt disgusted.

"Sunset, you awake?" said Twilight.

"I have to pee."

"Me too."

"Do you have to poop too?"

"No, just pee."

"Well I do."

They could tell the sun was out and it was a beautiful day.

"Ahhhhh..." Sunset let it all out right where she was. She didn't want to get up just yet, and she really liked the feeling.

Twilight giggled and started peeing.