Author's Note
Again, don't expect this to be my highest quality story, there wasn't a whole lot of "story" to the request.
A Messy Surprise
Adagio Dazzle, Aria Blaze, and Sonata Dusk chased after Somnambula. At the last second, Sombambula flew upward, and the three sirens, unable to stop, flew into the portal.
They fell into a pit of sewage. The first thing they noticed was the smell, and how they were covered from head to foot in the foul-smelling sludge.
When they tried to fly out, the second thing they noticed was that they couldn't fly.
The third thing they noticed was that they had legs. And instead of hooves, they had hands, like dragons. Looking at each other, they realized they had been turned into something... something they had never seen before.
Adagio was wearing a frilly purple dress, Aria was wearing a dress with a dark purple top and a green miniskirt, with skintight purple and white striped pants underneath, and Sonata was wearing a dress with a pink top and a dark purple skirt, but they couldn't tell the exact colors at the time because they were saturated with sewage.
"Please tell me this stuff isn't what I think it is," said Aria.
"All right, I won't tell you," said Sonata.
They got up and found their way outside. They had been inside some sort of sewage treatment plant. As they walked down the road, they saw more of these strange two-legged creatures that they had become. Some of them reacted in disgust as soon as they smelled them.
"First thing we need to do is get cleaned up," said Adagio. "Then we have to find a way back to Equestria."
They found a store that sold outfits, and walked inside. They saw two staff members and tried to blast them with sound waves, but it didn't work.
"Don't tell me we're powerless here too!" said Aria.
"Maybe not." Adagio rubbed the pendant around her neck. "These look like the source of our power back in Equestria. Maybe we still retain some of our power. Only one way to find out."
They touched their pendants and began singing. Immediately the two staff members began fighting. The sirens quickly wiped their hands off on one of the outfits and each picked out a new one.
Adagio picked an outfit resembling a purple shirt with puffy sleeves, and light purple pants under darker purple shorts.
Aria picked a white tank top, a green vest, and purple jeans.
Sonata picked a dark pink T-shirt and a pink skirt.
As they walked out, they paused to feed on the negative energy of the workers, who were still arguing and hadn't noticed a thing.
Over the years, they got a house of their own, and got more outfits, washing their original outfits. All the while putting people under their spell and feeding off their negative energy, keeping both them and their outfits in perfect shape. While also finding they needed to eat regular food to keep their human bodies alive, and that they also had the same bodily functions as ponies. It took a while for Sonata to adjust to this; she had to change frequently over the first week.
Eventually, the city got a bigger sewage treatment plant. The old one got taken down, and in its place, a high school was built.
It was the first Saturday after the sirens had lost their powers, and it was raining hard.
Aria walked in the rain, wearing her usual outfit of a white tank top, green vest, and purple jeans.
It wasn't that she liked the rain. She was here to sulk over losing her power, as she still hadn't gotten over it. Adagio seemed to have accepted it now, and Sonata didn't seem to care.
She had been walking for an hour when she heard giggling and splashing. She turned to see Sonata, wearing her usual pink skirt, and splashing around in the puddles.
"What the hell are you doing?" said Aria.
"Playing in the rain!" said Sonata. "It's so fun!"
"How can you think about fun when we don't have our powers anymore?"
"Don't get your panties in a bunch," said Sonata. "There's nothing we can do about it, and besides, tacos taste WAY better than negative energy!"
Aria jumped on Sonata and punched her in the face. They rolled around fighting for a few minutes, not realizing where they were going. And then, without warning, they fell into a mud pit.
"Now look what you did," said Aria.
"You started it!" said Sonata.
Just then, it stopped raining.
"Awwwww..." said Sonata.
Aria tried to climb out, but the pit was too deep and the walls were made of mud. She fell butt-first into the mud below.
Sonata lay on her back laughing and kicking her legs in the air as she watched Aria repeatedly try to climb out, to no avail. Both girls were completely covered in mud at this point.
"Let's see you do better," said Aria.
Sonata tried to climb up, but her hands slipped and she fell on her butt. She giggled. "That was fun!"
"Do you realize we're trapped in here?" said Aria.
"More time to play in the mud!"
After an hour, in the middle of which it rained again for five minutes, Sonata said "I have to go pee!"
"Me too," said Aria, regretting it immediately for fear that Sonata would tickle her.
"Ahhhhhhhhhh..." Sonata sighed, as though she was experiencing immense relief.
"Are you peeing your panties again?"
"I'm already wet so who cares?" She giggled.
Aria remembered the night she had lost her power, but she didn't want to do it now. It had been raining then, and Adagio and Sonata had been too distracted by losing their power. Now the rain had stopped, and she was covered in mud from trying to climb out repeatedly so if she wet herself now, Sonata would notice for sure. She held herself, crossed her legs, and fidgeted.
After four hours, Aria couldn't hold it anymore, and peed in her already-wet pants. She quickly pretended to try climbing out again, and deliberately fell face-down so Sonata could not see her peeing. Sonata could hear the hissing sound coming from her, and giggled. Aria blushed.
About half an hour later, Aria said "Hey, why don't you give me a boost out and I'll pull you out?"
"Sure!" said Sonata.
Sonata lifted Aria into the air by her feet. Aria was successfully able to climb out.
"Now, hang a rope or something down for me," said Sonata.
"Why a rope?" said Aria. "I can reach you now."
"I wanna play in the mud some more."
"Play until Adagio finds you," said Aria. After turning around and slapping her butt, she walked away as it started to rain hard again.
"Wait! Come back! Oh well! I can wait, like, forever!"
Sonata continued to play in the mud, getting dirtier faster than the rain could wash it off her. She peed again, as it had been over four hours since last time, and also released a different kind of brown mess into her underwear.
After two more hours, Pinkie Pie suddenly splashed into the mud pit with her, wearing a white and pink T-shirt and short, tight jean shorts.
"What are you doing here?" said Sonata.
"Oh, hi Sonata," said Pinkie. "I LOVE playing in this mud pit! Especially after playing in the rain and splashing in puddles!"
"I think that's really fun too!"
"I always thought you'd be fun to hang out with, if we weren't enemies and stuff. And, you're powerless now so we don't need to be enemies anymore! But... I hope you don't mind if I smell a little funny. I peed in my shorts before I got here, cause I was already wet from the rain."
"Don't worry, I peed myself too," said Sonata. "Twice."
Pinkie giggled.
"But... how do you get out of here?"
"I always tell Rainbow Dash what I'm doing, and she'll give us a lift out tomorrow morning."
"That gives us all night!"
Pinkie and Sonata did a rump bump and began playing in the mud.
Author's Note
Just to be clear, the WAM isn't a fetish for me (though I do like it) but the watersports is. This story sort of combines the two, with the latter as a side show (like the reverse of some of my more extreme stories). Also, the person who requested this does have a WAM fetish.
The sirens were walking home, disappointed.
They had just regained their full power, only to have their pendants destroyed by Sunset Shimmer, Princess Twilight Sparkle, and their friends, causing them to not only lose their power, but their ability to sing.
They were wearing the same outfits they had worn when they had arrived in this world, which had been clean until the audience had thrown food at them.
As they walked as slowly as possible, it began to rain. Within seconds, all three sirens were soaked through. Not that they cared. All they could think about was losing their power.
Aria had to go to the bathroom. She hadn't noticed it until the rain had started. Without a second thought, she started to pee in her pants. They were already soaking wet in hard rain so Adagio and Sonata would never notice.
The warmth did feel nice, but she barely noticed.
After they got back home, dried off, and changed into their usual outfits, Aria sat down on her favorite chair. She squealed as she felt something squish beneath her rear, and got up to find someone had put a cake on it.
"Sonata!" she said, furious.
Sonata was laughing hard. "I'm just trying to lighten things up!"
"Well don't. That wasn't funny." Aria sat down on the couch. She immediately jumped up, for Sonata had put a pie there, and Sonata laughed so hard she wet herself. Aria picked up the pie and threw it at Sonata. She took a bit of it off her with her fingers and licked it. Then Sonata grabbed the cake Aria had sat on and threw it at her.
Adagio facepalmed as Aria and Sonata had an all-out food fight, Aria furious and Sonata still having fun.
