Explosive Sleepover

Years, it had been so long since the seven of them were able to get together for a sleepover. Sunset Shimmer, Rainbow Dash, Pinkie Pie, Fluttershy, Applejack, Rarity, and Twilight Sparkle were spending the night at Pinkie’s house, enjoying the massive space of the girl’s gymnasium-sized basement. It was wall to wall soft padding and carpeting, with plenty of space for everyone’s sleeping bags. As well as this, there were several paintings along the walls to give the impression of outdoors, all with a fake campfire in the middle. It was almost like the seven of them were camping outdoors. Throughout the night, the girls had fun chats regarding men they’ve been with, women they’ve been with, even giggling with Fluttershy nervously asking if animals counted.

“Okay girls, I think we’re ready for some games.” Pinkie playfully giggled, rummaging through her things until she pulled out a large, electric pump. “Alrighty, this is gonna be a really fun game.”

“What kinda game needs a pump?” Rainbow asked, looking around the basement. “I mean, we got the space for it, but I don’t see any balls anywhere.”

“Oh, these aren’t for balls, silly. These are for us.” Pinkie giggled, doing a few small test pumps to make sure the device was working. “We’ll be pumping ourselves up!”

“Oh really?” Rainbow, her tone sounding more competitive, answered. “So we're gonna make this into a little contest? Who can be the biggest?”

“Oh yes, it’s so fun! My sisters and I do it all the time.” Pinkie said with a smile. “Maud always seemed to win, she can get as big as a house before she pops.”

“Really, I figured you’d last the longest.” Applejack commented with a chuckle. “But yeah, I’m game.”

“I’ll wait and see how you two perform.” Rarity spoke up, currently braiding and combing Fluttershy’s hair. “Besides, I’ll be here for a while.”

“I…I can go last...” Fluttershy chimed in, blushing a little. “If that’s okay with you.”

“Okie dokie lokie.” Pinkie giggled, then looked at Twilight and Sunset. “How about you two?”

“Eh, sure, why not?” Sunset said, shrugging her shoulders before looking at Twilight. “How about you?”

“I’ll give it a try. I’m actually a little curious.” Twilight said, rubbing her chin a little. “Pinkie, could you explain how it works?”

“Sure thing!” Pinkie smiled, starting to strip out of her pajamas. “First, you get naked.” The girls only watched as their friend tossed aside her clothes.

Pinkie’s body was pretty attractive, easily one of the sluttiest and sexiest at school. She had large tits, soft, plump hips, and a juicy, fat ass. Given how bad her grades often were, there were plenty of rumors that she fucked her teachers to get good grades. And with the somewhat open secret that Pinkie couldn’t say no to cock or pussy when offered, these rumors were mostly believed. Still, her friends didn’t judge her. If anything, they only thought it was annoying when she was late to hang out with them because she was still spewing some hot spunk from her fucked open holes. Now naked, she took the nozzle of this pump tube, setting it towards her jiggly butt.

“Now that we have this nozzle on, it’ll fit perfectly up the butt.” Pinkie explained, slowly starting to nudge this device into her soft and eager asshole. “You can also do the mouth, but I really love to take it in the butt.”

“Bet that’s not the only thing she likes up the ass.” Rainbow whispered a little chuckle to Applejack, nudging her friend a bit. “But hey, with an ass that hot, I find it hard not to shove my tongue in it.” She gestured but playfully sticking out her tongue.

“Keep talking dirty like that, and I’ll just have to see how far I can shove that head of yours in my pussy.” Applejack whispered her own flirty tease back. “Or do I have to get a Big Mac again?”

“After what he did to me, I was walking for fun for a week.” Rainbow said with a blush, which then became a smile. “So no shit you better get him in on this.”

It wasn’t much of a secret that these two took competitions very, very seriously. But it had gone from just simple athletic events, or even trying to eat the most, or get the best grades. Often, it would get pretty intense and sexual. Rainbow and Applejack had competed over who could fuck the most, could fuck the longest, and even engaged in their fair share of lesbian fuck offs to exhaust the other. Their most intense was when Big Mac accidentally walked in on them, and in their aroused state, they dragged him in the room to fuck them both until he was practically a dried out husk, and the two were so sore and exhausted, they could barely move. It ended in a tie that they’ve been debating about ever since.

“Girls, girls, we can talk sexy later.” Pinkie said, possibly hearing what the two had been saying. “But once naked, we take this device and shove it up the butt.” Wiggling it, she wedged it into her soft, puckering hole. “Oh…it’s been awhile, my ass is so tight. Let me just push a little-” She moaned softly from the feeling, which wasn’t just making her friends blush, but it was making them get pretty hot and wet.

Applejack and Rainbow couldn’t wait to start getting naked, showing off their own bodies. The farmer girl has a pretty modest chest, at least bigger than her friend’s, but her ass and thighs were simply succulent looking. All the hard work on her family farm gave her a round, tight looking ass that turned many heads in school. Rainbow’s body was what one would expect from an athlete. She was incredibly petite, but not flat chested, with visibly toned muscles, and her ass was petty tight and small looking. But what she lacked in body, she made up for in flexibility. Though she didn’t care for it, preferring girls over guys, whenever she did get fucked by cock, Rainbow wanted only the biggest, easily taking something that bulged in her belly.

After several moments, Pinkie managed to get this pump nozzle into her ass. She was already trembling a little, clearly so turned on by all of this. Her face was red from a blush, and the expression she was carrying was so hot, so slutty, that the girls could almost feel the pleasure their friend was feeling. Unable to hold in their aroused feelings, the rest of them started to strip from their sleepwear. Sunset and Twilight were the first to get undressed, with Rarity and Fluttershy following. Sunset’s body was much more mature compared to the others. It wasn’t that she had massive tits and ass, it was more she just had this look of someone who was far more experienced, with her breasts sagging only a little from all the times they’ve been played with, as well as her pussy looking plump from all the fucking she’s done.

Twilight’s body was like a healthy blend of Applejack and Rainbow. She had an ass that sat somewhere in the middle of the two, and yet her breasts were bigger than both, with very soft looking nipples. She was still very nervous about showing off her naked body, but her friends were always so eager and friendly that she would do it for them. Though she wasn’t that inexperienced, having masturbated many, many, many times. Rarity’s body was simply gorgeous, easily one of the most beautiful in the school. She had supple breasts, inverted nipples, and it was only complimented by her slender figure and wide hips. She was stunning, often modeling the lines of clothes she had done. More than once, she would be hit on by both men and women, but she was somewhat more choosy on who she would sleep with, with the few that got the chance treating it as a bragging right.

But it was Fluttershy who knocked them all out with her body. She surpassed Pinkie in many regards, having a body that was more akin to some fertility goddess. Her tits were massive, requiring a specially made bra that could hold in her fat boobs. Her inverted nipples were quite large, able to actually fit a few fingers in them, something she would do whenever she masturbated. Her belly was a little chubby, just like Pinkie’s, but it only meant there was more to hold onto whenever she would have sex. And her ass was just stunning, practically a national treasure in her school. So many heads would be turned whenever she walked by, and the rumor was that if you were quiet enough, you could hear her soft ass cheeks and thighs clapping a little between steps. While she was incredibly nervous about how sexy and slutty her body was, her friends were always there for her.

“And finally, you turn it on.” Pinkie giggled, turning the device on. A puff of air came out, slowly starting to fill out the girl. “And now…we wait…”

As the machine started to pump air into Pinkie’s ass, the girl’s body seemed to be slowly growing. It was subtle at first, with only her already plump belly getting more and more full. The girls watched on, seeing the way their friend was swelling up more and more. Within moments, Pinkie’s belly was nice and round, either as if she had gorged herself on a large banquet, or if she was heavily impregnated with octuplets. Still, she grew, and grew, and grew, with not just her belly, but now her boobs, her butt, and the rest of her were bloating out. Her arms and legs were among the last parts of her to get bigger, but she was growing all the same.

After several moments, at least a few short minutes, Pinkie’s tits were bigger than her body, her ass and belly were just as bloated, and the girl’s arms, legs, and now even her head were so full of air. But she didn’t burst, she only grew, and grew, and grew, and grew. She was getting so big that her friends had to back away a little, not wanting to accidentally set her off too quickly. Pinkie continued, the device pumping more and more air into her. Before long, there wasn’t a part of her that wasn’t swollen with air, her mouth was clamped shut, as if she was trying to hold in as much air as possible, and her eyes were almost bulging from their sockets. The normal curves on her body were no longer visible, only now making her look more like a well rounded ball of air pumped flesh.

By this point, her friends had to not only fully stand up, but back all the way to the basement stairs. Pinkie had become so massive, that part of her was squishing against the walls, floor, and ceiling much more than before. Her belly was rippling as the air continued to fill her up. But it seemed she was reaching her breaking point. More rippling spread throughout her body, but must’ve been tickling her as she was struggling to hold herself back from laughing. The girls watched on, seeing as their friend was about to blow. Bracing themselves, the girls saw as Pinkie’s body shivered, twitched, and shook. Until finally, she gasped out in an echoing laugh. As soon as she did, she burst.

It started as a massive gust of wind, one that blew back the hair of all the girls. The laughter echoed out, almost shaking the entire house in its bellowing as Pinkie’s body split open, breaking and scattering into a spray of multi-colored confetti. Though she said this was harmless fun, the girls looked on with a full array of emotions. Shock, awe, and a little worry as the confetti rained down on the basement floor. The laughter slowly grew faint, becoming less of a hearty sound, and more like a whispering whimper, before eventually silence. There was a somewhat long, awkward silence as the girls looked on at the mess that was Pinkie all over the floor.

The multi-colored confetti lay spread about, touching just about every inch of the floor. They covered the discarded clothes, as well as pretty much everything else. So much so, that they could barely make out the floor. Still, the girls looked at the mess that was their friend. Rainbow and Applejack looked on in amazement, as well as their competitive natures becoming more inflamed, since they’ll have to beat this display. Rarity, Fluttershy, and Sunset looked at this with more curiosity, thinking about if they too could make such a bursting reaction. With only Twilight showing a little more concern. Sure, Pinkie said she would be okay, and this was fine, but seeing her friend explode in front of her left her somewhat worried about Pinkie’s wellbeing.

“Okay…I…I didn’t expect…” Twilight said, swallowing nervously as she was worried for a moment. “Pinkie? Are you okay?” There was a little silence, but then the colorful confetti started to wriggle, jiggle, and sway with a giggling sound.

“Oh yeah, I’m fine. Better than fine, I feel amazing!” Pinkie cooed, almost moaning as if exploding into confetti had allowed her to reach some kind of orgasm. “How big was I?

“You were…I think if you had kept going, you would’ve filled up the entire basement.” Twilight explained. “So…who goes next?”

“I know I am!” Rainbow said, grabbing at the pump tube. “If Pinkie could do it, so can I. Besides, I gotta be even bigger than her.” With that, she shoved the nozzle up her ass, gasped out as she felt her anal canal clamp down on it. “Fuck…that’s pretty big…”

“Here, let me help you.” Applejack added, turning on the device with a mischievous smirk. “Let’s see if you can grow as big as your ego.”

One by one, the girls took part in this, shoving the nozzle of this pump either in their asses, or in their mouths. As they swelled from the air, they inflated, only to then burst in an explosion of confetti. Rainbow and Applejack’s bodies swelled to immense size, but both were the same as they burst at the same intensity. Rarity and Fluttershy were modest, but not very big compared to the others. But Twilight and Sunset were just massive, so much so, it was hard to tell if either of them burst because they got too big, pressing against the walls, floor, and ceiling, or if they somehow chose to burst at this size. But now all seven of them were in a scattering pile of multi-colored confetti.

“See! Wasn’t that fun?” Pinkie’s confetti pile giggled. “Wasn’t that great!”

“It was!” Rainbow commented, boasting proudly. “And I know I won!”

“Who won?” Applejack’s pile commented, shaking a little in her own boastful claim. “I know I was the one who won!” The two would continue to debate and bicker back and forth while the others were settling in.

“So we’re just gonna form back?” Twilight asked, her confetti swaying as she spoke. “How long does that take?”

“Oh, we should all good in the morning.” Pinkie’s confetti body replied. “Don’t worry, in case we oversleep, I asked Maud to check in on us.” With that, the girls, in their new, yet temporary states, drifted off to sleep.

By the morning, the basement was full of the many different types of colorful confetti. Walking down to the basement to check in on her sister and friends, Maud just looked out to the massive amount of remains scattered about. With a small, yawning sign, she walked over to a closet door, where a broom and dustpan rested. Taking it, she swept up each and every scrap of the confetti, making sure to properly seperate them so that each girl could reshape in a few more hours. From the look on her face, she had done this many, many times, and as such, knew just what to do. Taking them load by load, Maud separated them, putting them each on different piles. By the time she was finished, the seven were in their appropriate piles.

A few more hours passed, and by a little late in the morning, the girls started reforming together. It was a strange sight, as if they were bursting in reverse. There was a small breeze in the basement, as if even the air was forming back into them. The confetti churned in this blowing air, forming back to the girls’ bodies. Within the blowing air, there was a faint giggling, moaning, cooing, whimpering, and chuckling. Eventually, the girls were fully formed, still naked, but fully formed again. Pinkie was the first to return, possibly from all her experience doing this. Applejack and Rainbow seemed to be competing, even in this, as both returned to themselves at the same time. Rarity, Fluttershy, Twilight, and Sunset all returned at their own pace, stretching and yawning as if they had taken a very long rest.

“So, what did you girls think?” Pinkie asked, smiling her widest, silliest grin. “Pretty fun, right?”

“It was certainly something.” Sunset said, stretching a little more. “I think it got this pain out of my neck.”

“I have to say, it was a pretty fun experience.” Twilight added, but then saw the way Applejack and Rainbow were now rushing to get dressed first. “And it looks like their contest isn’t over.”

“Let them have their fun.” Rarity said, smiling as she was starting to get dressed as well. “A lady shouldn’t rush to get dressed in the morning.”

“I did have a fun time.” Fluttershy said, though she them whispered a little under her breath. “Though I…I wouldn’t mind doing this again.”

“Sure!” Pinkie said, hearing her timid friend’s words. “We can do this again! It was so much fun!”

“Well, I know I wouldn’t mind.” Sunset nodded, starting to get dressed. “How does next week sound?”

“Oh! We can make this a weekly game!” Pinkie said, smiling even harder. “Yeah, I gotta plan for even more for next week.” Before Sunset could say anything, she could see the wheels spinning in her friend’s head.