You and Sunset Shimmer have been going out for a while. Sunset is really fun to be around. And she has a nice butt. She often wears pants or shorts that outline it perfectly, including her pajama pants. You can't help but stare at it whenever she's facing away from you. Sometimes she turns around. You blush, but she smiles and says nothing.

One day, you're sitting on a bench at the park. Sunset is wearing a tank top the same shade of purple as her pajamas and a short, tight pair of jean shorts.

"I'm ready to take things to the next level," says Sunset.

"I'm ready if you are," you say.

"Of course you are. I noticed you staring at my butt a few times." She chuckles.

You blush. "Yeah, I kind of have a thing for that. And you do have a nice butt."

"Well, you can slap it or massage it all you want. I really like that, it's one of my fetishes."

"Then I'll do it a lot."

"If you don't mind me asking, do you have any other fetishes?"

"Well... You don't have to do them if you don't want to, but I like to see a girl fart. And I like it when they smell bad."

"That sounds like fun. I'll stop washing for a while and, when we're hanging out, eat stuff that makes me really gassy."

"Are you sure?"

"It'll be fun, and I know you'll like it. And I won't change out of this outfit either, not even to sleep."

"I like your pajamas, but maybe you can do them next time and this outfit this time."

"Sounds good."

FFFFFRRRRRRRRRT!

Sunset blushes lightly but giggles. You also blush at Sunset farting right beside you.

...

Three weeks go by. You and Sunset hang out often. True to her word, she doesn't wash or change clothes. She starts to smell really bad, and you have fun sniffing her, slapping her butt, and rubbing it. Sometimes she even sits on your face. And she farts a lot around you, often when you're near her rear end.

One day, you and Sunset wake up in her bedroom. The first thing you notice is a horrible stench. Obviously, it is coming from Sunset, who is laying beside you, sound asleep. A visible stench is emanating from her. She farts a few times in her sleep.

You slap her butt lightly. "Wake up, Sunny."

Sunset wakes up. "Good morning, Anon. What time is it?"

"8:00 in the morning."

Sunset sits up and stretches her arms. The visible stench of her armpits wafts in your direction and you get a whiff of it. Anyone else might have vomited, but you love it coming from her.

She puts her arms down and farts. "Ready to go camping?"

"Once I'm up."

You both get up, use the bathroom, and get the bags you packed for your camping trip. You have some breakfast and coffee, which Sunset puts fart powder in hers, then you load the bags into Sunset's car and get in, you in the passenger seat and Sunset driving.

It is a pretty small car, so before you even get out of her driveway, the car is full of her smell. Having not washed for three weeks, she smells absolutely foul, and her hair, shirt, and shorts are pretty dirty. And she knows you well enough to not open the windows. You mainly breathe in through your nose as you drive towards the campsite. It is about an hour long trip, plenty of time to smell Sunset in an enclosed space. She farts several times along the way.

Eventually you reach the campsite. You set up your tent, which is pretty small for another enclosed space, and a sleeping bag just big enough for two so you can cuddle each other, Sunset in her smelly state.

After that you go for a walk, still able to smell Sunset right beside you even though you're no longer in an enclosed space. You have all sorts of fun at the campsite.

Soon it's dinner time and you sit around the campfire. Sunset cooks some beans, you have one of your favorite food items you brought with you. You and Sunset sit beside each other next to the campfire and tell stories.

PPPPPFFFFT! BBBBRRRRRT! BBBRRAAAP!

Sunset lets out a series of wet farts. She chuckles, while you take pleasure in being right next to her during her gassiness.

Eventually, she says "Want to go inside the tent and have some fun?"

"Do I ever," you say.

After drinking a few cans of soda with fart powder in it, Sunset walks ahead to give you a view of her butt as you walk into the tent, and also so her smell wafts in your direction. Once you're inside the tent, she zips the entrance shut so soon the entire inside of the tent smells like her.

"What would you like to do first?" she asks.

"How about I smell your armpits?" you say.

Sunset raises both her arms. Already you can catch a whiff of her armpits, they smell worse than any other part of her. Except her feet, they always smell the same. You sniff her armpit up close. The smell is so overpowering you're sure anyone would faint. But all you feel about the smell coming from her is excitement.

After over a minute, she lets out a loud fart.

"How about a butt massage?" you ask.

Sunset lays on her back and lifts both her legs in the air.

PPPPPFFFFFFFFFFRRRRRRRRT!

"Sure," she says. "But first I need a spanking for that fart." She positions herself with her head down and her rear end in the air.

You get up close to her butt. You love the way it looks in that position in those shorts, and, taking a quick sniff, you love how it smells. Her shorts smell of body odor and farts. Speaking of which, a long, explosive fart makes its way out of her. You slap her butt as hard as you can, several times. You take pleasure in spanking her dirty tushie, and she takes pleasure in being on the receiving end of it. A few swats make her fart.

After about 25 swats, you stop. "Time for the butt massage," you say, and you start massaging her rear. Her butt feels so soft, and her shorts feel so grimy and a little bit damp. You sniff her butt up close again and let out a sigh of pleasure.

"I see you're enjoying this as much as I am," she says.

"You bet I am," you say, caressing her butt more vigorously.

BBBBBBBBBRRRRRRRRRRRRRRRRRRRRRT!

A loud, long, deep-pitched fart makes its way out of her. You pat her butt lightly and continue to rub it. She lets out a few more short, wet farts in your face.

Once you're done, she says "Lay on your back."

You do as you're told, and Sunset sits on your face. The feeling of her butt pressed against your face in those dirty, stinky shorts, is beyond words to describe. You love it so much you don't want it to stop. You breathe in through your nose, smelling her as up close as you possibly can. And of course Sunset farts on you several times.

PPPFFFT! BBBRRRT! BRAP! PPPRRRRRT!

After about five minutes, she stands up. "Now smell my feet." She sits down, evidently feeling no pain whatsoever after the massage, and removes her shoes and socks. You take her feet in your hand and sniff them. They smell beyond foul, just like her armpits. So you sniff deeply. Sunset chuckles, enjoying being sniffed while smelling like this, and the pleasure you get out of it.

After a few minutes, you stop, climb into your sleeping bag, and go to sleep. Sunset falls asleep first, and farts in her sleep a few times, before you also fall asleep.

...

You wake up to the sound of thunder in the middle of the night. You turn beside you. Sunset is awake and looking nervous.

"You all right, Sunset?" you ask.

"Not really," she says.

"It'll be all right. I'm here for you."

"It's not the storm. I really have to go to the bathroom, but I don't want to go out in this thunder."

"Can you hold it until the storm blows over?"

Sunset fidgets where she lays. "I can't. I drank a lot of soda last night and I didn't pee before bed."

"If you don't think you can hold it, you can just pee right here. I don't mind."

"Are you sure?"

"Yes. I love you wet or dry."

Sunset stops fidgeting and you can hear a loud hissing noise of a stream spraying against denim. A pee smell becomes noticeable among her stench, and you can feel a bit of wetness near you. She sighs in relief when she's done peeing her stinky shorts.

"Feel better?" you ask, not moving even the slightest bit away from her.

"Much better," she says. "And that wasn't so bad." She giggles and farts loudly. "I might be ready to wash up when we get back from this trip. So, after this rain, maybe I'll play in the mud."

"Sounds fun. Maybe I'll join you."

"Would you mind giving me a bath in my smelly outfit?"

"Sure."

"You'll have to scrub my butt extra hard. More so than my feet or armpits."

"As long as you fart in the tub a lot."

"I most definitely will." PPPPRRRRRRT!