Author's Notes:

Done by request.

Rarity and Sunset Shimmer were having a sleepover. Sunset was wearing her usual purple pajamas, Rarity was wearing a different set of pajamas consisting of near-skintight purple shorts and a matching midriff tank top. She looked truly lovely.

"Would you like me to sit on your face?" said Rarity.

"I'd love that," said Sunset.

Sunset laid down on her back, and Rarity sat on her face. Rarity's butt was as soft as her own, and she loved the feeling of it against her face. This, of course, was not the first time Rarity sat on Sunset's face.

After about five minutes, Rarity decided to try something new. Something she hadn't combined with facesitting before.

Sunset's eyes were closed, enjoying the facesitting, when suddenly her face felt very wet. She quickly realized it was because Rarity's butt was being soaked. She could hear Rarity let out a sigh, and whenever she could breathe in through her nose, she smelled an unmistakable smell.

Rarity was wetting herself while sitting on Sunset's face.

And Sunset felt extremely aroused by this.

By the time Rarity finished peeing, Sunset's head, including her hair, was soaking wet, as was much of Rarity's shorts.

After about another minute, Rarity stood up. "Did you like that, Sunset?"

"I loved it."

"And we're not done yet!"

"What do you-"

She stopped as Rarity pulled down her wet shorts and panties, positioned her butt above Sunset's head, and released the contents of her bowels all over Sunset's face.

A lot came out at once, coming in small, very wet pieces, covering Sunset's head and part of her pajama shirt.

They had rubbed each others' butts after soiling themselves before, but Sunset had never had anyone take a dump on her head before. It felt weird, and was very smelly, but, she found she liked it just as much as the wet facesitting.

Rarity pulled her shorts back up.

"That was amazing," said Sunset as she sat up and wiped scat out of her face.

"I'm glad you think so," said Rarity. She let out a boisterous fart, and a brown stain appeared at the back of her shorts. "Oops... looks like I wasn't quite done yet." Both she and Sunset giggled. "Would you like to do that to me now?"

"I do have to use the bathroom myself."

Rarity laid down and Sunset sat on her face. Sunset let Rarity enjoy the soft feeling of her butt against her face for a minute, and then she started to pee, sighing in relief as Rarity's head became soaked. Rarity was just as aroused as Sunset was.

Once Sunset finished wetting her pajamas on Rarity, she stood up, pulled her pants and panties down, and released more hyperscat on Rarity's face. Rarity let out a moan of pleasure, trying not to get any in her mouth. Sunset pulled her pants back up as Rarity lay there, enjoying herself greatly.

"I do believe this will not be the last time we do this," said Rarity.

"I sure hope it isn't," said Sunset.

Afterwards they cuddled together in their messy state, and took a long shower together before going to bed. They'd mostly washed their pajamas off and slept in their wet pajamas.