Author's Notes:

Just another random chapter based on one of my fantasies kind of played out in Chapter 1. It'll be shorter and with lower quality, just for people who either have the fetish or find it funny.
Anyone who didn't like any of my other fetish-based stories is NOT going to like this one, so turn back if this applies to you.

All seven of the Equestria Girls were going for a walk at a park. All of them were wearing their usual outfits except Sunset Shimmer, who was wearing her gray shorts, Pinkie Pie, who was wearing a short, tight, cute pair of jean shorts, and Rarity, who was wearing her skintight purple shorts which had cleaned up well after her last session with Sunset two days ago.

As they sat down at a picnic table in a busy playground area of the park, Rarity was suddenly feeling very gassy. Her breakfast this morning didn't seem to quite settle well with her. She hoped it was only farts this time. As much as she loved farting and soiling herself, she'd really prefer not to do either in front of anyone but Sunset.

But, there was a bathroom in this area, so she could always use the bathroom if things got too serious.

Pinkie Pie, meanwhile, had drank five cans of six different types of soda this morning.

"I have to go pee," said Pinkie, and she ran towards the bathroom. She cringed when she looked at the door and saw an "Out of order" sign on it.

She walked back to the table and sat down, crossing her legs. "It's out of order! And there's no other bathrooms for miles! I might have another accident..."

"Like that time you peed in your dress when Rarity was farting so hard?" said Rainbow Dash. Applejack hit her in the head with a newspaper.

Rarity didn't want to be reminded of that now. But, she figured she could just let some of it out now to decrease the pressure.

Without lifting her leg or getting out of her sitting position, Rarity let out a silent fart that lasted nine seconds. The relief felt amazing, but although no one had heard it, she could smell it.

The others could, too.

"Phew! Rainbow Dash, was that you?" said Applejack, fanning the smell away with her hat.

"If it was me, I wouldn't deny it!" said Rainbow. "I take great pride in my farts!"

"It was me," said Sunset, noticing Rarity's discomfort. "I just couldn't hold it."

Pinkie hoped that Sunset wouldn't fart loudly. She didn't want to laugh too hard in her current situation. She was fidgeting harder than ever now, holding herself and crossing her legs right.

Rarity held in the rest of her gas as long as she could. She couldn't even fart silently without anyone else knowing.

After an uncomfortable five minutes for Rarity and Pinkie Pie...

FFFFFFFFFFFRRRRRRRRRRRRRRRRT!

Rarity blushed beet red as a loud, deep-pitched fart made its way out of her butt.

Pinkie Pie couldn't help herself. She fell on her back laughing, while still trying to hold in her pee. Rainbow laughed just as hard.

"Uhhhhhh..."

PPPPPFFFFT! BBBRRRAAAAP! PPPPRRRRRT! PPPFFFFFRRRTT! PPPPRRRRT!

A flurry of boisterous wet farts erupted out of Rarity, and Pinkie laughed so hard she wet her shorts.

Finally, Rarity's farting had subsided, and Pinkie stopped laughing. She blushed lightly, but shook it off, as it wasn't that embarrassing. Then Pinkie farted loudly, and giggled, Rainbow Dash laughing harder.

Eventually, they were able to get back to having fun, Pinkie not caring how wet her shorts were, and even Rarity forgot the humiliation of farting in front of her friends (especially once Rainbow Dash started doing it). Rarity's shorts smelled like farts, but no one could tell unless they sniffed her butt. Sunset did slap her butt lightly when no one was looking, which Rarity liked. At least she hadn't soiled herself this time, but she was sure that would change tonight, as she felt like having another fetish session now. She couldn't get enough of it, and neither could Sunset.