Author's Notes:

Another chapter by request. Scenario is extremely stretchy, there is no way Rarity would ever do this, so as usual don't take too seriously.

Again, really repetitive of the last one, but this is for the requestor.

Twilight Sparkle and Sunset Shimmer met up at Twilight's house, wearing the same outfits as they had the first of many times.

"We won't be able to fart in Spike's face today cause he's over at Rarity's house now," said Twilight.

"Well, that's all right," said Sunset. "The rest will still be fun. Before I got here I had a big meal that makes me super gassy." She let out a loud, wet fart, and Twilight playfully slapped her butt.

...

Spike lay on the couch next to Rarity. He had witnessed numerous sessions of Twilight and Sunset farting, pooping all over the house, and wetting and soiling themselves.

But, there was one girl he would have really liked to see do all that.

Rarity was so beautiful and so ladylike, it was hard to imagine her doing something like that. But after witnessing Twilight and Sunset doing it, Spike desperately wanted Rarity to do the same.

It was a hot day, so Rarity was wearing a light blue tank top and skintight purple shorts that looked so lovely on her.

"Um... Rarity?" said Spike.

"Yes, Spike?"

"Can I ask you something?"

"Of course."

"Can you... poop in front of me?"

"Absolutely not! I'd never do that anywhere other than a toilet!"

"Well I do it in front of Twilight and Sunset all the time! And they..." He stopped. He didn't want to reveal their secret. "I mean, I think it wouldn't really be any different. And I promise I won't tell anyone."

"Well... I don't know..."

"Please?" Spike gave Rarity puppy-dog eyes.

"All right."

"Yes!"

Rarity went out to the store and got lots of beans, hot dogs, and other stuff. She cooked them up and started eating them slowly, but, her heart racing, she started to wolf them down faster. Was she actually looking forward to this?

Once she was finished, she and Spike waited patiently for it to take effect.

...

PPPPPPPPPPFFFFFFFFFT!

Twilight giggled as she farted again. Her panties were getting pretty dirty now.

Now it was Sunset's turn.

PPPPPPPPPRRRRRRRRTTTTT!

"Um... I think I soiled myself," said Sunset, blushing lightly.

Twilight looked at Sunset's butt. It had a brown stain on it and a big bulge. "Looks like you did!"

Sunset giggled a bit. Twilight also giggled and released the contents of her own bowels into her shorts.

...

"Ugh..." said Rarity as she felt her stomach gurgling. "Maybe five whole plates of beans wasn't such a good idea..."

"You'll feel better in no time once it's out of you!" said Spike.

"Yes, but... Ugh! I need to use the bathroom." She stood up.

"Hey, you said you'd do it in front of me!"

"Yes, but I don't..."

PPPPPPFFFFFFFFFFRRRRRRRRRRT!

Rarity blushed at the unladylike sound that had come out of her. Spike felt arousal like he never felt when Twilight and Sunset farted.

"Excuse me... that wasn't very ladylike."

"Actually, I think you're really cute when you fart."

"Awwwww..." Rarity kissed Spike on the head.

BBBBBBBBBRRRRRRAAAAAAP!

She let out another boisterous fart. She blushed, but giggled a bit. It was still a little embarrassing to fart so loudly, but she knew Spike liked it.

"Twilight farts in my face all the time," said Spike. She had always done this before he gave her her dare.

"Does she now?" said Rarity, and she stuck her behind in Spike's face.

FFFFFFFFRRRRRRRRRRRRRRRT!

It smelled as bad as Twilight's farts, but Spike didn't mind, and Rarity giggled again. She couldn't believe how much she was enjoying something so unladylike.

After a series of wet farts, Rarity said "I have to use the bathroom."

"I told you..."

"Yes, but... I have to pee."

"So, do it right here!"

Rarity couldn't argue. If she was going to poop in front of Spike, why not pee? She stood on a big garbage bag she had set in the middle of the room so that the floor wouldn't get dirty.

However, she had trouble pulling her shorts down in front of Spike. She had never done this in view of anyone before. She was extremely nervous about Spike seeing her lower half naked. The farting was nothing compared to this.

*Pssssssssss*

Rarity froze as she felt her shorts grow warm and wet. Her nervousness combined with her need to pee was too much for her. She was peeing her shorts.

Spike loved it. This was the best way she could have peed in front of him.

Rarity let out a few farts before she finished wetting herself, and blushed beet red.

"Don't feel bad Rarity," said Spike. "I thought that was really cute too. And it had to have felt good. Twilight and Sunset... know someone who really likes to do that. I, uh, overheard them talking about it."

Rarity felt a lot better at these words, and kissed Spike on the head again. She felt how wet her shorts were and did have to admit the warm release felt kind of nice. It gave her a naughty sense of pleasure she didn't know she could feel.

After about an hour of farting in her wet shorts, Rarity suddenly felt the pressure in her bowels.

"I believe it's time."

"Right! You can turn away from me if it makes you feel better."

Rarity stood above the garbage bag that still had her pee on it. She faced away from Spike, her heart racing. She did not want to mess herself. It would be far less fun than wetting herself. She pulled her shorts and her light blue panties down, squatted down, and let a brown wet mess make its way out of her.

She had to admit, it was kind of fun.

The smell was overpowering to her, so after she pulled her shorts back up she folded the garbage bag up, put it in another garbage bag, and threw it in the trash.

Her underwear was feeling dirty at the back now, but she was surprised to find that she didn't mind. She let out a series of wet farts that made her underwear even dirtier, and giggled the entire time.

About half an hour later, Spike said "I gotta go. Can I... go in here."

"Yes, you may. And... I have to go too. Is it all right if I join you?"

"Yes!" Spike nearly fainted with joy.

Spike and Rarity positioned themselves above a new garbage bag Rarity had placed on the floor. As Spike did his business, Rarity felt an even wetter mess fall out of her rear and onto the garbage bag below.

She didn't move the garbage bag this time. Spike was sure Rarity was going to do this again.

"Ooh, my underwear is so dirty," said Rarity. "But... it's kind of fun being dirty and unladylike for a change." She let out a very wet fart. "Please don't tell anyone about this. Not even Twilight."

"My lips are sealed!" said Spike.

...

Rarity continued to fart for another hour. She needed to pee, so she positioned herself above the sink and peed in her still-damp shorts.

She also released the contents of her bowels onto the garbage bag again.

"I am such a mess," said Rarity, and she giggled. She was wet, dirty, and smelled bad. And still very gassy.

Spike licked Rarity's face. "Just the way I like you!"

Half an hour later, Rarity let out a series of boisterous farts that she was sure were making her underwear even dirtier, but she didn't mind.

After a particularly loud and wet fart, Rarity made a mess in her shorts. She was disgusted at first, but found she really loved it.

After about ten minutes, however, she changed out of her dirty outfit, showered for a long time, and cleaned everything up, throwing them in the laundry. She always got the most powerful detergent in case she ever got really dirty for any reason.

"That was... more fun than it should have been," said Rarity, returning to her ladylike personality. "Don't breathe a word to anyone, and don't expect me to do that again if anyone besides you is around."

"I already told you I won't."

"Then, let's continue the day." She let out a silent fart.