A Collection of Dirty Fetish Sessions

One day, Rainbow Dash and Fluttershy were hanging out at Rainbow's house. Fluttershy had a week off and wanted to spend some time with Rainbow Dash.

Recently, she had plucked up the courage and told Rainbow Dash her fetishes that she wanted to play out with her. She had blushed profusely after saying it but Rainbow told her it was all good and she'd be more than happy to do it, plus it would be fun.

Today, Fluttershy was wearing a white tank top and short, skintight green spandex shorts, she knew Rainbow liked them on her especially how it outlined her butt perfectly. Rainbow was wearing a white T-shirt with a rainbow lightning bolt on it and skintight black shorts going down halfway to her knees.

After dinner, Fluttershy said "I'm ready now. If that's all right."

"You bet your Flutter butt it's all right," said Rainbow, slapping Fluttershy's butt. Fluttershy giggled, and Rainbow said "I'll go get the rope."

"Before you tie me up..." Fluttershy put on her wetsuit over top of her tank top and shorts. "I want it to happen in my wetsuit. I don't know why but it'll be more fun."

"As much as I like those shorts, your wetsuit's also real sexy," said Rainbow, slapping Fluttershy on the tush again. Fluttershy giggled again.

So Fluttershy sat down and Rainbow tied her arms behind her back and her feet together.

"How are you liking it so far?" Rainbow asked once she was done.

Fluttershy struggled against her bonds but Rainbow had tied her tight. "It's more fun than I imagined," she said with a big smile.

"Want to do the facesitting thing now?"

"Yes."

Rainbow walked into the kitchen, drank a glass of cider with fart powder in it, and then laid Fluttershy on her back and sat on her face.

Her face pressed against Rainbow's butt, Fluttershy sniffed. Rainbow's shorts smelled like a combination of sweat and farts.

"I haven't washed these for a week, and only ever removed them to go to the bathroom or take a shower," said Rainbow with a smile. "I've been doing all my running, sports, and sleeping in them."

Fluttershy sighed of pleasure. She was already having so much fun.

In a few minutes, Rainbow let loose with a flurry of short, loud, wet farts. They smelled absolutely foul, but Fluttershy loved it, breathing in only through her nose.

After about a half hour of this, Rainbow stopped farting and stood up. "Did you like that, Fluttershy?"

"I loved it," Fluttershy said. "I hope you don't think I'm weird for liking your smelly shorts and your farts."

"Of course not. It was real fun for me too and I love farting and wearing smelly shorts."

"Can I have some drinks with fart powder in it?"

"Sure." Rainbow got two glasses of soda, sprinkled a lot of fart powder in them, and held them in front of Fluttershy, positioning them right for Fluttershy to drink them. She then moved Fluttershy into a position with her rear end in the air. She could hardly wait for what was about to come.

Soon, a long, airy fart made its way out of Fluttershy. She blushed. "Excuse me," she said.

"You don't have to say that around me," said Rainbow, patting Fluttershy's butt. "And you should try farting louder."

Soon Fluttershy let out a short, loud, wet fart. She blushed, for she had never farted this loud in front of anyone before. "Excuse me."

"I told you you don't have to say that."

Fluttershy let out a few more wet farts.

"What a naughty girl, you need a spanking," said Rainbow.

Fluttershy farted in response. Rainbow rested her hand on Fluttershy's butt. "How hard do you want it?" she asked quietly.

"As hard as you can," said Fluttershy.

Rainbow slapped Fluttershy's butt as hard as she could. She spanked her again, and again, and Fluttershy had an expression of absolute pleasure on her face. A few swats would make her fart.

After 30 swats, Rainbow said "That's enough. Your butt must really hurt."

"You wouldn't mind massaging my tushie, would you?" *ffffrrrrt* "If you don't mind me farting in your face..."

"As long as you don't mind me really enjoying rubbing your butt while you fart in my face," Rainbow said with a smile. Fluttershy giggled. Rainbow got directly next to Fluttershy's arse and started massaging it with both hands. It felt so soft, like a pillow, and she really enjoyed how it felt.

Fluttershy sighed of pleasure, and let loose with a flurry of short, wet farts in Rainbow's face, stinking up her wetsuit and her shorts underneath.

"Phew, Fluttershy," said Rainbow, but she was smiling and breathing in only through her nose as she patted Fluttershy's butt after some of her louder farts and then went back to rubbing it.

"It's not too much, is it?" Fluttershy asked. A long, wet fart made its way out of her.

"Your farts stink even more than mine, which is saying something, but I love it and I could do this all day." Rainbow breathed in deeply through her nose and sighed of pleasure.

Fluttershy giggled. It was clear Rainbow Dash was having as much fun as she was.

Then Fluttershy let out a long, loud, deep-pitched fart. BBBBBBBBBBRRRRRRRRRRRRRRRRT! She blushed at this unladylike fart but giggled.

"Nice one, Fluttershy," said Rainbow, patting Fluttershy's butt some more and sniffing deeply.

After about ten minutes of Rainbow rubbing Fluttershy's tush and Fluttershy farting in her face, Rainbow said "How would you like me to sit on your butt and fart some more?"

"Ooh, that sounds fun!" Fluttershy was so excited she accidentally farted, and giggled.

Rainbow drank another cider with fart power in it and sat on Fluttershy's butt. Fluttershy farted several more times, and Rainbow took pleasure in her butt vibrating against her. Soon Rainbow was also farting up a storm, and Fluttershy giggled at Rainbow's butt vibrating against her.

They had more fun like this, and when they ran out of gas, they turned on a movie full of fart jokes and toilet humor, which both Rainbow and Fluttershy liked. Fluttershy requested that Rainbow give her more soda with fart powder in it so she farted several times during the movie.

Once the movie was over, Rainbow said "I'm going to bed. Do you want to go to bed with me or stay like this overnight?"

"I'd like to stay like this overnight."

"Sure." Rainbow got Fluttershy an old spare mattress and pillow, and put a blanket over her, laying her on her side. Fluttershy was very comfortable and found it more fun being tied up.

"Do you need anything before I go to bed?" Rainbow asked Fluttershy.

"Just a drink of water," Fluttershy said.

Rainbow got a glass of water for Fluttershy to drink, and then headed straight to bed, still in her stinky shorts. Soon she fell asleep.

...

Rainbow woke up in the morning really needing to pee. She quickly got out of bed and ran to the bathroom. Exiting with her shorts dry, Rainbow walked over to Fluttershy, still laying on her mattress in the living room.

"Good morning, Dashie," said Fluttershy cheerfully.

"Good morning Fluttershy," said Rainbow. "How are you doing?"

"I'm still having lots of fun."

"Want me to untie you so you can go to the bathroom? You must really have to go after drinking all that soda."

"Actually, I already went." Fluttershy blushed lightly.

"Oh. Sorry about that, Fluttershy."

"It's all right. I don't mind."

"How long have you been wet?"

"Right around the time you started snoring, I had to go to the bathroom really badly. I held it for about a half hour."

"Oh. That must've been unpleasant, laying all that time in your own pee."

"I said I don't mind. In fact..." Fluttershy blushed a little more. "It was actually kind of fun."

"Holding it or peeing your wetsuit?"

"Both." Fluttershy let out a wet fart and giggled.

"So, want me to untie you so you can change?"

"I wouldn't mind staying like this all week. If that's all right with you."

"I don't mind if you don't."

So Rainbow pulled the blankets off Fluttershy and got her into sitting position and fed her some breakfast of beans. Rainbow also ate some beans, and soon she was sitting on Fluttershy's butt with both girls farting on each other. Rainbow noticed Fluttershy's butt felt a little warmer than yesterday.

Several hours later, Fluttershy, who was in sitting position, said "I have to go to the bathroom," and fidgeted a bit.

"Just go in your wetsuit," said Rainbow. "You already wet it once."

Fluttershy had hoped Rainbow would say this. She sighed in relief as a loud hissing noise emanated from her. Rainbow really enjoyed this, but Fluttershy enjoyed it more, the warm, wet feeling filling her wetsuit, spreading through her crotch and butt, as well as the relief, and the naughty feeling of what she was doing in front of Rainbow Dash. She let out a sputtering wet fart before she finished peeing.

...

On Day 3, Fluttershy, who had not been untied since then, was farting, until her farts grew wetter and stinkier.

"Phew! Fluttershy, do you want me to untie you so you can go to the bathroom?"

"No thanks. I'm having fun as I am."

"Are you sure? You sound like you might have an accident in your wetsuit, and not the kind you've been enjoying for the past three days."

Fluttershy let out a dirty wet fart in response, and giggled. A few wet farts later, she felt a bit of poop plop into her shorts and wetsuit. This really excited her and made her feel a whole new level of dirtiness and naughtiness. She peed a little, before she kept farting as hard and loud as she could, and before she knew it, she noisily soiled her wetsuit. She sighed in relief when she was done.

"Are you all right, Fluttershy?" Rainbow asked, noticing the bulge on Fluttershy's butt and smelling the mess in her wetsuit, which was more foul than her farts.

"Yes," said Fluttershy, blushing lightly but giggling. "That was really fun."

"Good," said Rainbow. She sniffed Fluttershy's butt up close, also taking great pleasure in this, and then sat on Fluttershy's butt, wiggling her butt around. The mess didn't get on Rainbow's shorts, not that Rainbow would have minded especially since she stopped wiping since tying up Fluttershy, but both she and Fluttershy enjoyed the feeling of the mess squishing between their butts. Fluttershy let out a sloppy wet fart and soiled herself again.

"I'm such a dirty, stinky girl," said Fluttershy, but with a smile on her face.

"You sure are," said Rainbow, farting loudly.

A week went by, during which Fluttershy stayed in this position, not wanting to leave it. She farted non-stop due to Rainbow giving her beans and soda with fart powder in it, and whenever she had to go to the bathroom in either way, she just went in her wetsuit, with both her and Rainbow taking pleasure in this.

At the week's end, Rainbow untied the very smelly Fluttershy, put her soiled wetsuit in the wash, and gave her a bath in her heavily soiled, stinky shorts, spending extra time scrubbing her butt while Fluttershy farted in the tub and in Rainbow's face. Rainbow sat in the tub for this too in her smelly shorts, which Fluttershy suspected she had soiled once while sitting on her butt, and which Rainbow said she had peed in one morning before she got out of bed.

When her bath was over, Fluttershy's shorts still smelled and had some brown stains on the butt, but she didn't mind, she'd have Rarity make her a new pair and keep these for her kinky sessions with Rainbow Dash, as well as wetting and messing herself when no one else was around. Except Rainbow, of course.

"Next time, can you give me a wedgie and hang me up by my underwear for a week?" Fluttershy asked.

"Sure," said Rainbow Dash. "And I'll put a plastic bin below you to catch your pee when you wet yourself."

Fluttershy giggled. She farted loudly and put her hand on her butt. "I think I pooped my shorts again," she said.

"I love a pretty girl with poop in her shorts," said Rainbow, patting Fluttershy's soiled rear. Fluttershy giggled and peed her shorts, sighing of relief.