Pinkie Pie was very excited, for she was going to be babysitting Pound Cake and Pumpkin Cake for a week while Mr. and Mrs. Cake were away for an event that involved cake. She was always able to make them laugh - sometimes by farting, which they found absolutely hilarious.
Pound Cake could fly and Pumpkin Cake had the power of telekinesis, which Twilight said must have been because of a surge of Equestrian magic on the day they were born. This could have made them quite a handful, but they were always well behaved around their parents and both they and Pinkie were sure the twins would be just as good around her since they liked her so much.
Being the middle of summer, Pinkie was wearing a white and pink T-shirt and short, tight jean shorts. She thought they made her butt look cute, and the twins laughed whenever she slapped her butt. Nothing about it was sexual to them of course, they just found it funny, as did Pinkie.
Mr. and Mrs. Cake arrived at Pinkie's house, dropped the baby twins off, said goodbye, and left.
"We're gonna have so much fun together!" said Pinkie. She farted loudly and giggled.
Pound Cake and Pumpkin Cake laughed.
"Who wants cake?" said Pinkie, putting a chocolate cake with chocolate frosting on the table. She first set the plates on the table, a big plate for herself and small plates for the twins at the high chairs where they sat.
As Pinkie was getting knives and forks, Pumpkin Cake telekinetically levitated the cake onto the chair with the big plate in front of it. Pound Cake giggled, then he and his sister stayed quiet as Pinkie returned with a knife to cut the cake with and forks for the twins (she intended to eat her pieces of cake by hand). After she set the forks on the twins' plates, Pinkie walked over to her chair, not noticing the cake was missing from the table, and sat down.
A loud squelching noise was heard and Pinkie's eyes went wide. She had felt something squish under her butt when she sat down. She stood up and saw the squashed cake on her chair.
Pound Cake and Pumpkin Cake laughed at their prank, and the way Pinkie's butt looked with chocolate frosting on it.
Pinkie also giggled. "Cake sitting. I see what you did there."
Pinkie's shorts were clean enough that it didn't contaminate the cake, so she cut it into pieces and they ate it anyway. After that she gave them their milk bottles while she drank lots of soda, after which she let out a long belch, much to the twins' amusement, though they thought farts were funnier.
For the next hour or so, Pinkie played games with the twins. They were very good at a lot of them despite their extremely young age. Then she let them ride her, pretending she was a pony. Pound Cake would slap her butt to make her move forward. Not only was this how you would get horses to move, but they thought it was funny, and so did she.
Until, Pinkie felt a sudden, intense, and familiar urge hit her. "Ooh! This pony needs a pit stop, cause I gotta go potty!" She reached for her back to gently pull the twins off her, but they were gone. She looked over and saw them disappear into the bathroom. She ran to the bathroom door and tried to open it, but it was locked.
The twins had locked it from the inside? They really were smarter than the average baby. Pinkie held herself and pee danced as she waited for them to get out.
"Hurry, hurry, hurry!" said Pinkie. "I really gotta go!" She wasn't kidding. She was in desperate need of a bathroom, and she hadn't gotten around to unclogging her other toilet after she had eaten the first of a huge stash of prunes she had bought yesterday. She made a mental note to call the plumber later today.
Then she heard a toilet flush. Amidst her overflowing bladder, Pinkie was a little worried that the twins might have flushed themselves down the toilet.
But then, the door opened, and the twins came out, completely clean and dry. Pinkie was impressed. They were toilet trained already? Did they do it themselves?
Pinkie snapped out of it and was about to run into the bathroom and get her relief when she felt a sudden tug on her underwear. She tried to run but though her legs moved, she wasn't moving forward at all. She looked behind her to see Pound Cake, hovering and pulling on her white panties with his hands, giving her a wedgie. Both he and Pumpkin Cake were laughing at seeing Pinkie's underwear.
Pinkie giggled slightly herself, but held herself with both hands. "Can you let me go? I gotta go pee really, really, really badly!"
Pumpkin Cake levitated some feathers with her telekinesis.
"Don't do it, Pumpkin Cake!" said Pinkie, trying her hardest to hold it but knowing she wouldn't stand a chance against those feathers. "If you tickle me, I'm gonna wet my shorts!"
Pumpkin Cake immediately tickled Pinkie's armpits with the feathers. Pinkie tried her hardest to not laugh, but it was virtually impossible especially for her. Pinkie started laughing hard, and in only a few seconds she was peeing her shorts uncontrollably. The twins laughed at the sight of the wet spot rapidly expanding on Pinkie's crotch as the pee flowed down her legs in torrents, forming a puddle where she stood.
Pinkie was barely aware of the warm wetness spreading through her shorts and down her legs. She was laughing her pink butt off as Pumpkin Cake continued to tickle her relentlessly.
When she finished peeing, Pumpkin Cake stopped tickling her. As soon as Pinkie stopped laughing, she felt her wet shorts and blushed, giggling nervously at her accident. The wet spot, puddle, and pee smell were all too easy to notice. But she also noticed the twins laughing, and smiled in a less sheepish way, as she loved seeing them happy and making them laugh. Plus, it was kind of funny, she would always laugh at any mention of wetting, except Fluttershy's fear wettings, which she would instead try to cheer her up.
"Can I change into something dry?" said Pinkie. "I wet myself really bad." She giggled.
Pound Cake kept a firm grip on Pinkie's underwear, preventing her from going anywhere. Pumpkin Cake levitated a rope and tied Pinkie's hands behind her back. Pound Cake released Pinkie's panties, which snapped against her rear end. She tried to walk to her bedroom to get a dry pair of shorts, but fell on her butt. Pound Cake grabbed her underwear again and dragged her between the two couches in the living room. Pumpkin Cake then levitated more rope and tied Pinkie's left leg to the couch on her left, and her right leg to the couch on her right. This forced Pinkie's legs to stay spread, giving the twins a perfect view of her wet shorts. They laughed, and Pinkie giggled, though a little nervously.
The twins turned on the TV. Teletubbies was on. Pound Cake picked up the remote and changed the input to Blu Ray, and Pumpkin Cake levitated a Blu Ray disc into the player. Pound Cake closed it and played the movie.
Pinkie was very entertained, even in her current position, for this movie was one of many in the section of her shelf that was full of fart jokes and bathroom humor. She and the twins both found it funny to no end, and so they were all laughing equally throughout the movie. The only other person who would watch these movies with her was Rainbow Dash.
In the middle of the movie, the twins paused to get bottles of milk. Pinkie was quite impressed they could do this themselves. They also poured a large glass of soda for her to drink, Pumpkin Cake levitating it in front of her. Pinkie wasted no time in guzzling it down, spilling a bit of it down her front onto her shirt.
The twins didn't resume the movie yet, instead they just stared at Pinkie as though expecting something. And in only ten minutes, Pinkie found out what.
Pinkie let loose with a flurry of short, wet farts. Pound Cake and Pumpkin Cake laughed, and Pinkie giggled as she kept farting. It didn't take her long to figure out that they had put fart powder in her soda. She had a big stash of fart powder along with soda, cake, beans, and, more recently, prunes. She was stinking up her shorts and the room, but the twins didn't care, it was too funny to them.
Eventually they resumed the movie. When they finished it, they fed Pinkie some baked beans before drinking their refilled bottles of milk, then a slice of cake. With her hands tied behind her back she could only use her face to eat it, getting her face and shirt dirty with bean sauce and cake frosting. But she didn't really mind, it was so delicious. They finished by giving her another soda with fart powder in it. She giggled at how gassy she was going to be between that and the beans.
Before long she was farting non-stop again, giggling the entire time as the twins laughed. In the middle of it, they ran to the bathroom and returned completely dry.
Soon Pinkie was feeling an urge to pee again. "This has been really fun, but can you untie me now? I gotta go potty!"
The twins laughed, and neither made a move to untie her.
Pinkie fidgeted, but with her hands tied behind her back she couldn't hold herself, and with her feet tied to the couches, she couldn't cross her legs. With her legs spread the way they were, it was harder to hold it. She wondered if this was why they tied her feet to the couches instead of tying them together.
"Can you PLEASE untie me?" said Pinkie, growing more desperate by the second. "I REALLY gotta go!"
The twins laughed, enjoying watching Pinkie squirm. But not in a sadistic way.
Between her legs being spread and having held to bursting point earlier today, Pinkie couldn't hold it for very long. She sighed in relief as she peed herself for the second time today. The twins laughed at the sight of Pinkie having another accident in front of them, as a puddle grew where she sat. She blushed, but giggled, finding a bit of humor in it. In the middle of peeing, she let out a sputtering wet fart in her puddle, which made the twins laugh harder.
Once Pinkie finished wetting herself, Pound Cake and Pumpkin Cake put on another movie from Pinkie's "Toilet Humor" shelf. Pinkie sat in her wet shorts tied to the couches as she watched the movie with them and laughed every bit as hard as they did at all the fart jokes and pee and poop scenes in the movie. In the last quarter of the movie, Pinkie laughed so hard she peed again.
When the movie was over, Pinkie said "Can I have another snack?"
Pumpkin Cake levitated one of Pinkie's prunes before her. Without thinking, Pinkie ate it as fast as she could.
Pinkie continued to sit there and fart, and soon her farts grew wetter and stinkier.
FFFFRRRRRPPPPT!
"Ooh... that sounded wet." Pinkie giggled, and then a wetter fart made its way out of her. "Can you untie me now! I gotta go potty!"
The twins just laughed.
"I know I wet myself three times already, but I gotta go poop this time! If I don't get to a bathroom right now I'm gonna make a mess!"
The twins laughed and let Pinkie stay tied up where she was.
Pinkie fidgeted in her puddle, farting repeatedly. She couldn't see how she could avoid it. She was going to have a messy accident in her shorts. Usually she found it funny, but it could be very unpleasant to actually do. The best she could do was just hold it as long as she could.
But eventually she couldn't hold it any longer. After a few wet farts, Pinkie noisily filled her shorts with hyperscat. She sighed in relief as a visible stench came from her. The twins could smell it but they didn't mind; they just lay on their backs, kicking their legs and laughing.
In spite of the wet, smelly mess in her shorts, Pinkie giggled, glad that she was able to entertain the twins, even if it meant going to the bathroom on herself in both ways.
Pinkie sat in her wet, soiled shorts as the twins watched another movie, occasionally serving Pinkie soda or cake. Pinkie farted several times during the movie, and giggled in spite of her current state.
Eventually, nighttime came. Pumpkin Cake levitated a blanket around Pinkie to keep her warm, she and Pound Cake both kissed Pinkie on the cheeks for goodnight, and they tucked themselves into their crib.
"Aren't you gonna untie me?" Pinkie asked. But she could hear the twins snoring from their crib. She sighed and sat in her wet, soiled state until she fell asleep.
Pinkie woke up the next morning really needing to pee. The first thing she noticed was the stench around her. The second thing she noticed was that her shorts were wet and filled with poop. It didn't take her long to remember what had happened.
The twins were already awake, and Pound Cake hovered in front of her holding a plate of undercooked scrambled eggs. Pinkie devoured them and the cake they brought her for dessert before drinking some soda with fart powder in it. It seemed they had removed the blanket after they had woken up.
"It's a new day, can you untie me now?" asked Pinkie, struggling against her bonds. "I have to pee really badly!"
The twins just shrugged. Pinkie sighed and peed in her shorts, causing the twins to laugh, which in turn made Pinkie giggle as well.
Day 2 went very much the same way as Day 1: The twins served Pinkie soda with fart powder in it, cake for snacks, and beans for lunch.
Shortly after lunch, there was a knock on the door. Pound Cake hovered over to it, looked through the keyhole, and opened the door.
Rainbow Dash zipped in, wearing her outfit with the skintight pants. "Hi Pinkie Pie! I thought, since the twins share our interest in farts, maybe we could have a farting contest." She noticed Pinkie, tied to the couches and sitting in a puddle. "Whoa. What happened to you?"
"They tied me here since yesterday. I may have had more than one kind of accident in my shorts." She giggled. "But I'd be up for that farting contest."
The twins sat eagerly with a bowl of popcorn.
Rainbow Dash drank a large glass of water with fart powder in it, and gave Pinkie an equally large glass of water with the same amount of fart powder in it.
"So, how are you gonna babysit them tied like that?" Rainbow asked as they waited for the fart powder to take effect.
"They're usually in this room watching funny movies with me," Pinkie said. "They can do everything on their own. Pouring their bottles of milk, going to the bathroom... they've been feeding me cake, beans, prunes, and soda with fart powder in it. They also gave me undercooked eggs for breakfast which will make my shorts even messier..."
Before long, both girls took turns letting out long, loud, explosive wet farts. Pinkie's farts were wetter due to the state she was in, and a few of them were sharts. But Rainbow's farts were longer and slightly louder, as usual; Rainbow always won their farting contests. But Pinkie didn't mind, it was always fun either way.
The twins were laughing hard, Pound Cake flipping over the bowl of popcorn and spilling it everywhere. Not that they'd have been able to eat it laughing the entire time at Pinkie and Rainbow farting in front of them.
Soon Rainbow ran out of gas. "Looks like I win again," she said.
"I'd shake your hand if mine weren't tied," said Pinkie. "Can you maybe untie me?"
Rainbow chuckled. "You look like you're doing all right there. Watching funny movies, being served your favorite foods, farting a lot... have fun, Pinkie." Rainbow walked away.
"Rainbow wait!" said Pinkie, but Rainbow had shut the door and locked it. Pinkie sighed, but had to admit Rainbow did have a point, part of it WAS kind of fun.
Pound Cake offered Pinkie a prune.
"No thanks," said Pinkie. "My shorts are messy enough as it is."
Pound Cake gave Pinkie a cute pleading look.
"Oh all right," said Pinkie, and she ate the prune.
Soon Pinkie was letting loose with dirty wet farts, and it wasn't long before she made another mess in her already-soiled shorts. She felt so dirty but part of her did find it funny, and the twins certainly did. They then put on the first episode of one of Pinkie's favorite shows, which was full of fart jokes and wettings.
...
On Day 3, Pinkie was still in the same position as before. Her shorts were saturated and smelled strongly of pee, poop, and farts. Not to mention the rest of her was starting to smell due to not washing. But she wasn't entirely not enjoying herself, and was finding the movies to be entertaining, as well as enjoying how entertained her situation was making the twins.
At 11:00, Pumpkin Cake levitated a bowl of chili to Pinkie.
"Not chili," she said. "That stuff gives me really bad diarrhea."
The twins giggled, and Pumpkin Cake nudged Pinkie's chin with the bowl.
"Well, I'm only going to get messier anyway," said Pinkie, and she gobbled down the chili, getting a bit of it on her shirt. She paused for a few seconds, anticipating the mess that was to come. Her stomach growled, then... nothing. "Huh. I guess it doesn't have that effect on me anymore." Immediately after came a few wet farts, and then she noisily released explosive diarrhea into her shorts, adding to the tremendous mess. She blushed and giggled nervously while the twins laughed, and Pound Cake ran to the bathroom. Pinkie did find it kind of funny how the twins weren't wetting or messing themselves at all, and she was doing both every time she needed to go.
About an hour later, there was another knock on the door. Pound Cake opened it, and Rarity and Applejack walked in.
"Good afternoon, Pinkie," said Rarity. "We were just wondering how you were... Good heavens, what is that smell?"
Pinkie giggled nervously. "They tied me up two days ago. They're feeding me lots and keeping me entertained, but I've been going to the bathroom on myself ever since."
"Oh, I'm dreadfully sorry," said Rarity, trying to hide her disgust at the state Pinkie was in, as she felt bad for her.
"Can you untie me?" Pinkie asked, struggling against her bonds. Her butt squished around in her mess, and part of her liked how it felt.
Rarity slowly walked over to Pinkie. Her face turned green as she caught a very unpleasant whiff of the mess in her shorts. "Ugh... I think I'm gonna be sick..."
"Yeah, I may have had a bad case of diarrhea an hour ago."
Rarity reluctantly stepped in Pinkie's puddle, which was so big that untying her would be impossible for someone without telekinesis unless they stepped in it. She tried to untie Pinkie, but got one more whiff of her and passed out on her back in Pinkie's puddle of pee.
Applejack picked Rarity up out of the puddle. Pee dripped off the back of her purple skirt and her legs.
"Can you untie me?" Pinkie asked. "You're used to working with manure at the farm."
"This smells a might worse than that," said Applejack. "But it don't bother me much."
Pinkie sighed in relief.
"However, if I untie you, they'd just tie you up again," said Applejack.
It was then that Pinkie let out a few loud sharts. PLORP! BLART! BBBBRRRRRT! She couldn't help but giggle as the twins laughed.
"Plus, the three of you look like you're havin' fun anyway," said Applejack. "You want my advice, don't hold it too long. Unless that's fun for you, just let it all out when you feel the urge. You're gonna wet yourself anyway, so why suffer?"
"I... might have already started doing that." Pinkie blushed.
"And don't worry too much about the mess, I'm sure Rarity will make you another pair of shorts." Applejack walked away carrying Rarity.
"Awwwww," said Pinkie. But a part of her had actually hoped Applejack wouldn't untie her.
...
On Day 4, Pinkie remained where she was, farting, peeing, and pooping in her shorts, while watching her favorite movies with the twins.
Then Twilight and Sunset came in.
"Whoa," said Twilight, holding her nose and staring at Pinkie's heavily soiled shorts.
"Yeah, being tied up for four days will do that to you," said Pinkie. "They're a lot smarter than most kids their age. Can you untie me?"
Sunset braved Pinkie's stench and stepped through her puddle. As she grabbed onto the ropes binding her hands together, her hand touched Pinkie's wrist, and immediately she got a view of Pinkie's emotions. "On second thought... I think we'll just leave you here."
"What?" said Twilight.
"But I've been here for four days, and I REALLY need to be changed!" Pinkie let out a sloppy wet fart, which made the twins giggle.
"If my powers of empathy are right, and they always are, you're enjoying this," Sunset said. "You're having fun watching these farty movies with the twins, you like making them laugh, you find it a little bit funny to go to the bathroom on yourself, and you're having fun farting when they give you beans and fart powder."
Pinkie blushed but giggled. "You have a point there..."
"See you around, Pinkie," said Sunset.
"And don't worry," said Twilight. "We don't think you're any less fun to hang around with after this."
"Keep feeding and entertaining her, Cake twins," said Sunset as she and Twilight walked out the door.
"Wait!" said Pinkie as the door closed. "I don't want to go potty in my shorts for three more days! Or do I? It is kind of funny, and they like it..." Pinkie peed herself yet again, and giggled a bit.
...
On Day 5, Pinkie was sure she had peed in her sleep when she woke up. Pound Cake and Pumpkin Cake gave her extra beans for breakfast and lunch, and extra sodas with fart powder in it. Pinkie's stashes of all of those were big so they weren't anywhere close to running out. Nor did Pinkie seem like she would ever run out of gas that day, for during the next movie, she was farting non-stop, with her farts ranging from short to long, from high-pitched to deep-pitched. She was laughing uncontrollably at both this and the fart scenes in the movie, and several times she laughed so hard she peed herself.
The twins were also laughing hard at this, to the point Pinkie thought they would have an accident too. But they always made it to the bathroom every time. Pinkie was pretty sure they didn't need to wear diapers.
The next person that Pound Cake opened the door for was Fluttershy.
"Oh my," said Fluttershy, blushing at the state Pinkie was in. "I'm so sorry this happened to you."
"It's all right," said Pinkie. She grunted, pooped her shorts, and sighed in relief.
"I'll untie you and give you a bath right now."
"You don't have to. I'm having so much fun." Pinkie giggled.
"Oh. Um... if you say so."
"Please don't do this to her," Pinkie said to the twins. "I can find the fun in it but she wouldn't."
The twins solemnly nodded. Then Pinkie let out a loud wet fart, and the twins laughed.
"Well, I hope you can keep having fun with all of this," said Fluttershy. "I wouldn't, but I'm not Pinkie Pie." She giggled lightly and walked out the door.
The twins gave Pinkie some more chili, and a large soda with fart powder to wash it down. It took Pinkie under a minute to finish them. It wasn't long before she added to the mess with more explosive diarrhea. All her farts for the next hour were sharts, and she peed twice within the hour.
...
Pinkie woke up on the seventh and final day. She smelled absolutely foul. Her shirt was dirty between not washing for a week and spilling food and soda all over it, and her armpits were very smelly. But her shorts were several times smellier, and an absolute mess. They were filled past the brim with poop, and saturated in pee. She was sure her white panties were completely dyed brown and yellow after all this. The puddle she was sitting in was brown due to her mess mixing in with it.
She was sure she had peed in her sleep again, but her bladder wasn't empty. After she finished taking her morning pee, and after the twins finished laughing at this, they finally untied her.
Pinkie stood up. Some of her mess ran down her legs. "That was fun," she said. PLORP! She giggled. "I really need a bath."
The twins walked to the bathroom, and Pinkie waddled after them.
Pound Cake turned the bathtub on and filled it with water while Pumpkin Cake put soap in it. Pinkie was looking forward to this bubble bath. She really needed it.
Pumpkin Cake levitated as much of the mess out of Pinkie's heavily soiled shorts as she could, and into the toilet, which Pound Cake flushed.
As soon as the tub was full, Pumpkin Cake levitated Pinkie and threw her into the tub, still in her filthy, smelly outfit. Pound Cake held one bath scrubber in his hand while hovering, while Pumpkin Cake levitated another scrubber with telekinesis. They poured soap on Pinkie and started scrubbing her all over. Pinkie greatly enjoyed this. She farted in the tub, which made all three of them laugh.
Once Pinkie's top half was clean, Pumpkin got her into a position with her rear end in the air, and Pound poured a large dollop of soap onto her butt and scrubbed it as hard as he could. Pinkie giggled, enjoying the feeling of her butt being washed with soap in her dirty shorts.
The twins took turns scrubbing Pinkie's tushie for ten minutes before they were done, though her shorts were still a little stained. They rinsed her off, and she helped them clean up her puddle and what remained of her mess on the floor.
After that they played more games together like on Day 1 before Mr. and Mrs. Cake returned.
"How was it?" Mrs. Cake asked.
"I'm not sure they even need babysitting," Pinkie said. "They were in control the whole time. They don't even need diapers. But I'd do it again if I had to." She had no hard feelings whatsoever for them making her use her shorts as a toilet for so long. It was kind of a fun experience, but she was ready to return to her usual lifestyle for now.
However, it did take three days for Pinkie to be potty trained again, and a full week before she stopped wetting the bed.
