Pranks For That

by Wandering Pigeon

Rating: mature
Tags: Twilight Sparkle, My Little Pony: Friendship is Magic, Fetish, Comedy, Starlight Glimmer, Random, Slice of Life
Length: 11041

Starlight Glimmer is inspired to get into pranking, but she ends up taking it too far.

After an encounter with Pinkie Pie, Starlight is inspired to get into pranking. But how long will it be before she goes too far?

About fifteen minutes, give or take.

Warning: contains diapers, diaper usage, ABDL themes, and minor bondage.

Published 2018-07-04 21:10:06 UTC
Last updated 2018-07-19 22:32:36 UTC

Starlight's Bright Idea

Starlight opened the door to Sugarcube Corner and was greeted by the overwhelming scent of freshly baked goods. Cakes, pies, donuts, cookies, etcetera, (Etcetera being the name of catch-all pastry Pinkie had recently invented that could contain any and every type of icing, batter, and flavor one could imagine and just thinking about it made Starlight’s mouth water.) all competed for her nose’s attention.

She inhaled, inviting all the mingling smells to dazzle her. It was a marvel to behold; easily her favorite thing about visiting the bakery. Besides seeing her friend, of course.

The lunch hour had long since passed, taking the crowds with it. Aside from a corner table with a single pony at it, the place deserted. Not that Starlight was complaining: no lunch rush, no line!

She sauntered up to the counter, only to be greeted by a cotton-candy colored tail. It shifted and bounced, reflecting its owner’s movements below.

“Pinkie?” Starlight asked.

THUD!

Starlight flinched as the counter jolted. No doubt Pinkie had forgotten where her head was and brought it up a little too fast.

“Starlight!” Pinkie’s smiling face still managed to rise above counter, unburdened by the blow to her head. “How’s it going?”

“It’s going,” Starlight said, a little noncommittal. Her day was stuck somewhere in the void between good and bad, but she had a feeling that was about to change. “Is my order ready?”

“Yupperoni!” Pinkie pulled a purple box up from under the counter, her grin growing a little wider. And perhaps a bit more… mischievous? “One dozen Etceteras! The Starlight Special.”

She giggled a bit. “Don’t remind me.” At the rate she could put those things away, she was surprised the pounds weren’t packing on faster.

“Fifteen bits please,” Pinkie said, setting the box down and letting her hoof flying over to the cash register. She hit a few buttons and the till popped open, just as Starlight got out her money.

“Here you go.” Starlight dropped the bits in Pinkie’s waiting hoof, and her magic enveloped her box in her bright blue aura. “Have a good one, Pinkie!”

She turned to leave, her box floating after her. Already, Starlight could barely contain herself; she wanted nothing more than to rip the box open and pig out. But… she had promised Spike he’d get at least one. She worried if she started now, there’d be no stopping her.

“Don’t you wanna check them?” Pinkie suddenly asked.

Starlight paused, turning back around. Pinkie had a wide smile on her face, that only grew as she nudged her head toward the box.

“The Etceteras, silly,” she clarified, grin now reaching ear-splitting proportions. “You know, just to make sure I didn’t mess anything up with them.”

“Hmm.” It wasn’t like Pinkie to doubt herself like that. Starlight looked to her box, rotating the lid around to face her. Her magic slowly moved to open the top. I guess it couldn’t hurt to check…

POP!

“AH!” Starlight fell backwards as confetti exploded out of the box. Even after her flanks hit the floor, all she could see was the fluttering aftermath of brightly colored squares. They rained down around her, eventually giving way to a laughing Pinkie Pie.

“Gotcha!” she cried, snorting

Starlight could barely process that, her heart was racing from the sudden jolt. By the time the last of the confetti settled to the floor, she’d managed to recover, if only just.

Sugarcube Corner’s single patron was looking her way now, raised brow matching his curious glance. He at least stayed quiet, which is more than could be said for Pinkie. She’d traded in her snorts for cackles, barely able to keep herself from falling over as she laughed.

Feeling heat rise beneath her cheeks, Starlight fought down her embarrassment as she stood back up. “What was that for, Pinkie?”

Stifling her laughter, Pinkie wiped a tear from her eye. “Hehe… I just couldn’t resist. And the look on your face was totally worth it, too!”

“But…” Starlight struggled to find the right words. She needed to roll her shock, embarrassment, and disappointment in not getting her Etceteras all into one, apt phrase. And what she settled on was, “Why?”

Pinkie no longer needed to contain her laughter, but she didn’t even try to hide her bubbly grin. “Oh come on, Starlight. It was just a little prank.”

Her brow furrowed. “A prank…?”

“Yup yup!” Pinkie reached below the counter once more. “Cause earlier today, I was thinking about all the pranks Dash and I had pulled all over town, and I remember that out of all my friends, you were the pony I’d pranked the least! We’re talking a big ole goose egg worth of pranks, too.”

Coming back up from the counter, Pinkie’s hooves produced a new box, identical to the last. “And I got to thinking, ‘Hey, I can’t go without pranking one of my bestest friends in the whole wide world!’. And I knew you’d be stopping by today for these—” Pinkie popped open the lid of the box. Starlight reflexively flinched, but was relieved to find it only contained her prized pastries.

Pinkie snapped the box closed and slid it across the counter to the end closest to Starlight. “—So I came up with that one lickety split! Pretty good if I do say so myself.”

Starlight brushed the confetti from her path and took a step forward. “So you… prank your friends?”

“Mmmhmm!”

Starlight’s eyebrow climbed her forehead. “Why?”

Pinkie giggled. “Because it’s fun, silly! And what’s better than having fun with your friends?”

“It wasn’t fun for me,” Starlight grumbled as her magic took hold of her new, hopefully confetti free, box of goods.

“Hmm…” Pinkie tapped her chin. “Well, maybe you’re more of a pranker than a prankee... Oooh, I know! You should try pranking somepony!”

Starlight blinked. “Uh… but I don’t have any confetti with me.”

Pinkie laughed right into a snort. “No no, a prank can be anything! Just as long as it’s unexpected and funny.”

Starlight tilted her head in thought. Maybe a prank would be more fun if she wasn’t on the receiving end of it. And if what Pinkie said was true, she might even be able to wiggle a friendship lesson out of the experience.

I know Twilight would approve of that.

“Okay...” she said, giving her tentative agreement.

“Really? You’ll try it?” Pinkie bounced skyward. “Hooray!”

“I’ll look into it,” Starlight clarified for her. “I’m sure the castle library has a few texts on the subject. Then maybe after I’ve read up on it I’ll give it a shot.”

“Okie dokie lokie,” Pinkie was still jittering with excitement. Starlight had a feeling no matter what else she did to temper expectations Pinkie would take it as an enthusiastic yes anyway. “You’ll have to tell me all about it when it happens. Unless you prank me, cause then I can find out for myself. And then I can return the favor, and then you can, and then I can, and then—”

“Uh… sure.” Starlight might have to pass on that one. She had a feeling she did not want to get involved in a prank war with Pinkie. “But I’ll definitely tell you all about it,” she said, turning towards the door.

“Make it a good one!” Pinkie called out after her. “You only get one first prank, after all!”

“Yeah, will do, Pinkie,” Starlight said, waving as she left.

Starlight munched on a mixture of cookie dough ice cream, coconut cake, and strawberry icing. The many tastes of the Etcetera all blended in her mouth, creating the spine-tingling goodness that she’d become so addicted to over the past few months.

She flipped through the pages of her book and shoved the last bite of the Etcetera in her mouth, not even looking up from the lines.

Since she’d gotten back, Starlight had burned through the libraries wealth of knowledge on pranking. There was actually a good bit to go through, from Joy Buzzer’s Theory on Gags and Tricks, to High Jinks’ Practical Application of Practical Jokes.

Soaking it all up like a sponge, Starlight was now on the last book she could dig up, Whimsy’s Prankopedia, a glorified spellbook that held hundreds of charms, incantations, and other forms of magical mischief.

She had to admit, at this point she was getting a little excited. The more she learned about pranking, the more fun it seemed. The tense preparation of the setup, the crooked satisfaction when the trap was sprung… Starlight could feel laughter bubble up within her just from the anticipation of her first prank, and she didn’t even know what it was going to be yet!

Flipping through the pages of the book, Starlight wrestled with herself over which idea to settle on. Her eyes fell on a transfiguration spell that could give any seat the properties of a whoopie cushion. Briefly, her mind flashed to a future where she’d cast this spell in Twilight’s throne room, turning the regal chairs into glorified fart machines.

“Mmm…” Starlight shook her head, turning over the page. Fart jokes weren’t all that funny. And besides, she could do better. Pinkie’s reminder flashed to the forefront of her memory.

“You only get one first prank, after all!”

Starlight nodded in agreement with the memory. “Yeah,” she murmured to herself. “Gotta make it count.”

Maybe she could go with a classic, then? Her page flipping brought her to a curse that would cause a bucket of water to fall on a pony whenever they opened a new door.

“...Nah.” She could see that getting old fast. And that wasn’t nearly as funny as the whoopie-cushion throne idea, which was saying something.

Starlight sighed, and whipped through the pages of the book with her magic. The fluttering paper kicked up a nice little breeze, but that was about it.

Even as the pages flew by, Starlight was able to keep up just by skimming the titles. But as the chapters worth of jokes passed in front of her eyes, she started losing hope.

“Nope. No. Nah. Uh-uh...” Tripwires, plastic wrap, air horns, shaving cream and feathers...

Starlight eventually leaned back in her chair, groaning. At this rate, it didn’t seem like she’d find any prank worthy enough to be her first. She’d seen nearly five-hundred ideas in the Prankopedia and not one had managed to light a spark in her.

Letting her head drop back, Starlight saw the rows and rows of bookshelves behind her. Surely amongst all of them she’d come up with something. She just had to start digging.

She groaned at the prospect. Normally reading wasn’t a bother to her, but today was different. Her tail flicked, filled with anxiousness. Starlight ground her teeth together, about ready to hop out of her seat.

Wading through stacks of mostly unrelated books in the hopes that she might find inspiration sounded like torture right now. She feared by the time it took her to settle on something her excitement would fade away.

“Gaaaaaah!” She sat back up hooves covering her face in anguish. “Why does this have to be so hard?”

Pinkie made it look so easy before. Then again, Pinkie made everything look easy, from buckball to friendship.

Starlight let her hooves drop from her face, just about ready to resign herself to a lesser prank just to get it out of the way. But then, her eyes caught something.

On the desk the Prankopedia was still open. Starlight had assumed she’d flipped through all the pages already, yet there was still one left unturned, waiting.

Her ears pricked up at the sight, and a spark of hope ignited in her. Leaning back over the table, Starlight flicked the final page over and hoped she wasn’t setting herself up for more disappointment.

At first, she was almost nervous to look, knowing this might be the last idea to choose from for her first prank. But even so, curiosity got the better of her: she had to know.

The page flipped, and Starlight’s tentative eyes rose to the top of the page.

The Padded Prison

Locks your target in a giant cushy diaper that can’t be removed. Watch them squirm and struggle with embarrassment, unable to escape their padding!

Starlight’s eyebrow’s pricked up. Unconsciously, her tail flicked back and forth and she felt the corners of her mouth turn up a little.

Trapped? In a diaper? She snorted. Just the thought made her want to break out into laughter.

This was the kind of prank she could get behind. It was humiliating, it was fresh, and just by looking over the spell written down, Starlight could tell it was pretty easy to do, too. In fact, thanks to her horn, she basically had everything she needed.

Her oncoming smile blossomed into a full on, almost evil, grin. This was it; the prank she’d been waiting for. That earlier excitement that had almost passed over her was now getting a second wind. Her spark had caught fire.

Giddily reading and re-reading the instructions for the spell, Starlight practically committed it to memory. Her body was jittering by the time she was done, ready to pounce into action.

Okay… okay… Starlight tried to maintain some degree of calm amidst her overwhelming desire to test out this new prank. So now all I need is somepony to prank...

“Heya, Starlight.”

WHAM!

The Prankopedia whipped closed, sending a thunderous clap through the room. The sudden invasion of a familiar young dragon’s voice had caused Starlight to flinch in fear, not wanting her first prank to be discovered before it even began.

“Hi, Spike!” she called out, spinning around to him. She forced a wide smile, hoping he wouldn’t suspect anything.

He raised an eyebrow at her, suspecting something. “What, did you think I wouldn’t notice?”

Reaching behind herself, Starlight shoved the Prankopedia further behind her back. “Nooootice what?”

Spike hit her with a knowing smirk and pointed to the corner of his mouth. “You already picked up the Etceteras, obviously.”

Starlight blinked, wiping at the corner of her mouth to find a lingering blob of frosting. She licked the treacherous morsel up, her heart rate already steadying; her perfect pranking ploy was safe.

“Well?” Spike’s claws met his hips. “You didn’t forget, did you?”

“Huh?” Her head perked up. “Oh right!” She’d promised she’d save him one, hadn’t she?

Starlight’s head turned to the box. The lid was open, but resting low to obscure half its interior. A pinch of nervousness grabbed her, as she couldn’t actually recall how many she’d eaten already. Was it ten? More than that?

Oh boy… Her horn lit up, gingerly gripping a corner of the lid as she peeled it back. Come on, Past Starlight, don’t fail me now.

The creeping emptiness of the box dulled her hopes. The lid pulled back to reveal even more and…

“Yes!” One final Etcetera remained!

Starlight withdrew a mass of vanilla icing sandwiched between two hoof sized chocolate chip cookies. The whipped cream on top buckled under the weight of a strawberry dipped in strawberry ice cream, but refused to collapse.

“Here you go,” she said, levitating it over to Spike. She smiled, proud of her self-control.

“Thanks.” Spike chomped into it the second her aura got free. “I was going to head over to Rarity’s to see if she needs a helping hoof with anything, so I’ll catch you later.”

Starlight’s brow furrowed. “Wait, I thought you were helping Twilight catch up on some paperwork today?”

He chuckled, licking whipped cream from his lips. “I was, but she didn’t last very long. Spent all night reading again, I bet, ‘cause she passed out right on the bill she was supposed to be signing. Figured she’d prefer to catch up on sleeping before catching up on the paperwork, so I left her to it.”

“In the throne room?” Starlight’s brows leapt up her forehead.

“Well… yeah,” Spike looked like he felt a twinge of guilt, but snuffed it out with another bite of cookies and icing. “I know I do a lot for her and all, but carrying her all the way up to her bedroom? That’s a bit much, even for her number one assistant.”

“So Twilight’s gonna be alone,” Starlight spun around in her chair, eye’s drifting to the Prankopedia. “And you don’t think she’ll be up anytime soon?”

“Nope,” Spike mumbled through stuffed cheeks. Swallowing he said, “You’d probably have to drive a train through the castle to wake her up now.”

“I see…” Starlight hoof excitedly tapped the Prankopedia’s cover. She only barely tempered the smile blossoming across her face.

“Whelp,” Spike licked his fingers, heading out. “I’ll see you later then.”

“See ya,” Starlight called back, her magic nudging the door closed behind him.

When she heard it shut, she sprung out of her chair, bouncing around. “Yes! Yes! Yes! Yes! Yes! Yes! YES!”

How perfect could this possibly be? She had the best first prank imaginable, and the best target to try it out on!

After all, what could be more humiliating for a Princess than to be caught in a diaper? It was almost too good to be true. Starlight’s horn flickered to life and she pinched her fore leg and earned a sharp spurt of pain.

Wincing, she just grinned harder. “Nope, not dreaming!”

This was actually happening. She was actually going to get to prank Twilight!

She scooped up the Prankopedia, her horn sparking to life once more. Even though it was a short walk to the throne room from here, Starlight refused to wait even a second longer. In a blinding flash, she teleported straight in.

As the blue light around her dissipated, Starlight took in her new location. The Cutie Map was covered with scrolls, parchments, inkwells, and quills, all of which buried the miniaturized towns of Equestria in an avalanche of paperwork. Not even some of the thrones had been spared, with extra work piling up on top of them as well.

Only two thrones were saved from that fate: Spike’s, which undoubtedly was only because he’d just left, and Twilight’s which held the Princess of Friendship as she dozed.

Twilight was bent over the Map, cheek nestled into a pile of scrolls to use as a makeshift pillow. Dark circles lined the bottom of her eyes, complimenting her heavy snores as she shifted unconsciously.

A giddy whirlwind whipped through Starlight’s body. She dispelled some of the excess energy by prancing in place, so excited she almost cheered.

She halted her premature celebration to open up the Prankopedia again. The pages darted past her eyes until she came across the Padded Prison spell once more.

“Okay, let’s see,” she whispered to herself. Just because Twilight was out cold didn’t mean she was going to get careless this early into the prank. Overconfidence would always be her downfall.

“Concentrate on the image of a diaper, got it.” Her eyes skimmed down as she read aloud. “Focus your magic around your target’s pelvis, got it. Warnings, yada yada yada…” She quietly slammed the book closed. “Ready.”

Her horn ignited with her light blue aura, and soon wrapped Twilight’s waist in a similar light. Her mentor remained completely unaffected, sinking deeper into her scroll-pillow with all the regality of a clam.

“Hmm…” A thought wormed its way into Starlight’s brain, one that had her put a pause on summoning the diaper.

Twilight’s pretty good with magic. Better than me, even… she realized. I can’t have her finding a way out of this spell when she wakes up...

She tapped her chin, running through a rol-o-dex of ideas in her brain for how to solve this problem. Her plan was to simply return after Twilight woke up and pretend to catch her stuck in a diaper, with plenty of teasing to go along with it. If Twilight broke free before she got back then her first ever prank would be completely ruined!

Okay, how about I just put all the power I can into this spell? Her magic had gone toe to toe with Twilight's before. If she gave it her all then Twilight shouldn’t be able to get the diaper off by herself.

Yeah, that was a good idea. Great even!

Starlight grinned, her horn glowing brighter. I’m a pranking genius! Just wait until Pinkie Pie hears about this.

Magic swirled around Twilight’s waist. The alicorn failed to pick up on any of it, continuing to snore like an Ursa Minor. As Starlight’s horn burned with magical aura, the spell reached its apex. She could practically hear it humming with power.

She cast the spell, throwing everything she had into fashioning a diaper Twilight would never be able to take off. Light overtook the room, but evaporated as quickly as it came.

Starlight had to blink, vision dotted with spots as she waited for the aftershock of the bright light to fade. When it did, she got her first look and her handiwork.

Twilight was sitting same as she had been, head buried in the papery pillow she’d made for herself. But her plot was a different story. Wrapped around her flanks was a miniature cloud of padding. Starlight had never seen a diaper that big in her life; even pressed against the throne, it was still poofy enough to spread Twilight’s legs apart.

"Mmm..." Twilight groaned in her sleep. Her plot shifted around in the seat, earning a few crinkles from her new diaper.

Starlight laughed, just barely slapping a hoof over her mouth in time before her eyes darted up to Twilight’s face. No change.

She kept her hoof to her mouth anyway, not trusting herself to stay silent. She knew it’d be funny to see Twilight in a diaper, but she doubted anything could’ve prepared her for how goofy and foalish it turned out to be.

Not bad for a first prank.

Now all she had to was wait for Twilight to wake up. Sure, she could shake Twilight awake now and begin a barrage of teasing, but Starlight couldn’t shake the notion that catching a cornered Twilight who was desperately trying to hide her foalish shame would be way more fun.

But the wait was going to be murder all the same. Starlight could already feel the suspense rattle her bones, and her mind raced with the possibilities of how it would all play out.

She took a step back from Twilight, still trying to suppress her laughter, and wobbled. All of a sudden, she felt lightheaded.

Come to think of it… I put a lot into that spell. She steadied herself, needing all four hooves for the job. The exhaustion of pouring all her magic into that one spell was starting to pile up. Not even the sugar high of the Etceteras was going to help counteract it.

She looked at the sleeping Twilight once more, a new idea popping to the forefront of her mind.

Yeah… a nap would be good.

She turned and started dragging herself to her room, knowing a good rest would eat up time faster than anything else she could do anyway. Once she woke up, she’d have so much fun humiliating Twilight.

Starlight chuckled to herself, still able to revel in the success of her first ever prank. She shot one last glance back at Twilight and smirked evilly. She couldn’t wait to see those purple cheeks turn red.

One Sided Prank War

Twilight found herself waking up to heavy eyelids and an achy bladder.

She groaned, stretching her hooves as she pulled her head up from the Cutie Map. An unfurled scroll followed her, stuck to her cheek. With a telekinetic pull, she peeled it from her face, wincing as it fought to let go of her sticky coat.

Drool.

Great. She dropped the paper onto the table once she realized the source of its stickiness, unwilling to touch it even with her magic as she leaned back. What am I? A foal or something?

crinkle. crinkle.

Twilight’s ears flicked, body pausing before her back could touch her throne. The chamber leapt back into silence, leaving her without a hint of where that noise had come from.

Her eyes darted around the room anyway, but her hungry curiosity soon found itself starved. Nothing was out of place and nothing was out of the ordinary, so it seemed. No clues as to what could have made that noise.

Twilight’s brow furrowed, the dozens of theories that had sprung into her head in the past few seconds all dropping like flies.

I guess I could’ve imagined it, she thought to herself, sinking a little into the seat of her throne. For whatever reason it was a lot more comfortable today than usual.

crinkle. crinkle.

Twilight’s ears flicked again, the sound’s resurgence ensuring this wasn’t her imagination. It was definitely coming from somewhere in the room. In fact, it sounded like it was coming from just below her…

Eyes dropping down, Twilight found out the source of that crinkling noise pretty easily. She was sitting on something white and plasticy, that wrapped all the way around her waist. The more her heavy eyes looked at it, the fluffier it seemed to be too, which could explain her throne’s sudden cushiony feeling. It was pretty weird, though. Almost as if she was wearing a…

“...A DIAPER?” Twilight’s exhausted brain jolted to full wakefulness at the realization. Twilight jolted too, right over the side of her chair and onto the floor out of pure shock.

The diaper followed her, crinkling all the way, as if it needed to confirm what Twilight already knew.

crinkle. crinkle. crinkle. crinkle.

She laid on her back for a moment, still. Her mind raced, trying to process what she was seeing. As she took her sweet time, the diaper smushed it’s padding up against her plot. She instinctively wiggled her legs, trying to push them together, only to bet met with surprisingly firm resistance from the soft fluff.

She raised her head, slowly. The white plastic rose over the horizon of her belly like the sun, and much like the sun Twilight couldn’t look directly at it without wincing.

“What is going on?” She asked, pushing herself up.

crinkle. crinkle.

The diaper squished as more weight was added onto Twilight’s plot and she grimaced. How had this thing gotten on her? Was Spike responsible?

Twilight pressed her lips together and shook her head. No, he wouldn’t have. At least, not unless he had reason to suspect I’d need it...

Her face flushed red ever so slightly at the idea of her using this thing. The red paled quickly as she recalled her bladder. A sharp yet dull ache of pain spread through her lower hip; without a doubt she’d woken up in the first place because she had to go.

Biting her lip, Twilight decided she could solve the mystery of the spontaneous diaper later. She grabbed at the edges of it and tugged to get free.

crinkle. crinkle.

Twilight’s brow furrowed at the sudden resistance. The waist of her diaper seemed to push back at her hooves, refusing to let go. She tugged again, putting some effort into it.

crinkle. crinkle.

Once more, the diaper refused to come off. In fact, it seemingly latched onto Twilight’s hips, as if it were glued. Grinding her teeth, Twilight pulled, grunting with exertion.

crinkle. crinkle.

Her brow threatened to put a permanent wrinkle in her forehead.

The diaper almost tightened around her waist, and Twilight found her hooves slipping off their grip the harder she tried. She was getting nowhere fast with the foalish garment. And considering she was unable to escape the feeling of mounting pressure in her bladder, that was definitely not good.

Glaring daggers at her diaper, Twilight clenched her jaw. What is going on here?

Was she really so tired that she couldn’t get a diaper off? That couldn’t be it, the shock of seeing it had definitely woken her up. Maybe it was just on really tight?

She wiggled her hips, earning some noisy crinkles from her diaper in turn.

crinkle. crinkle.

It didn’t feel overly tight. In fact, it felt rather snug.

Okay, Twilight thought angrily, a twitch in her eyelid. In that case… Her hooves drifted back to the tapes of the diaper, hovering in the air for just a second.

And then she yanked down, seething, “get off of me already!”

crinkle. crinkle. crinkle.

POOF!

A cloud of magic exploded from the diaper.

“Ah!” She flinched, squeezing her eyes shut as the sparkly, pale blue aura enveloped her. It lasted a mere second, but it still stunned her.

For a moment, she just kept her eyes shut and didn’t move. The last thing Twilight wanted was to get caught taking a peak right as an aftershock hit. After a while, she was convinced that nothing of the sort was going to happen.

Tentatively, she opened her eyes again. Puffs of magic still wafted through the air around her, remnants of whatever magic had just ambushed her. She brought up her leg, absently intending to swat the sparkly, blue clouds away as she wondered what had just happened.

And then she saw her hoof.

Or rather, she saw the atrociously pink, frilly bootie encompassing her hoof. The harmless color juxtaposed uncomfortably with it’s sudden appearance, and the lacey white frill running around the edge of the sleeve only added to that disconnect.

Her hoof hung in the air as Twilight stared at it, her stomach churning in concern. “W-What?

Her eyes darted to her other fore hoof. A matching bootie. She shook her leg, hoping to send it flying. It didn’t budge an inch.

Looking forward, passed her diaper, Twilight lifted her hind legs to find that even they had not been spared a bootie-ing.

This has to be from that burst of magic, Twilight realized, eyeing the diaper around her waist suspiciously. And I’m willing to bet trying to take off this thing caused it.

The diaper had to be cursed, or at the very least infused with some kind of magic. What other explanation was there?

She looked around suddenly, up at the empty ceiling of her throne room. “Discord?” she guessed accusingly. Her eyes darted around trying to spot the god of chaos. If this was his doing, then right about now would be the time he’d want to appear and gloat. Though the thought of his mockery sickened her, she just wanted out of this by now.

When he failed to show himself, Twilight felt a creeping doubt. Had she guessed wrong? But if Discord wasn’t behind this random, yet sinister, diaper’s appearance then who could be? Not wanting to dwell on that now, she turned her attention back to solving the problem.

Twilight looked between her bootied hooves and the diaper, wondering what they’d been meant to accomplish in the first place. She’d never heard of a spell like this before, and that made her stomach churn.

Cautiously, she reached down and poked her diaper, trying to gauge its response. Her fluffy bootie and poofy diaper mingled with a crinkle, and she pressed a little deeper into the padding to the tune of even more. But thankfully, nothing happened. Breathing a sigh of relief, Twilight plopped her head against the ground.

Okay, so just touching it wasn’t what caused… her curled her hooves inside her new booties. ...this. So what…? She gulped; a certain possibility came to mind, but she really didn’t want to believe it was true.

Regardless of what may happen, Twilight knew she had to get her new outfit off immediately. The diaper or the booties would be bad enough on their own, but if she was caught with both of them on together it might start to look like she’d intentionally dressed herself as a foal.

First things first. Twilight moved her hooves back down to the waist of the diaper, aiming for the tapes. She pushed, peeled, and pulled, but her diaper remained stubbornly in place. No matter how hard Twilight tried, her booties kept getting in the way. They were just too cumbersome to deal with; their fluffy thickness removing any dexterity her hooves might’ve had.

She pawed at the waist of her diaper a little longer, the crinkles becoming increasingly desperate. It didn’t help that the diaper still held firm, clinging to her to snuff out any hope she had to get it off like this.

crinkle. crinkle. crinkle. crinkle.

Twilight let her hooves drop to her side; she was going nowhere fast. So long as these booties were on her, the diaper wasn’t going to be easy to get off. There was always her magic, but…

I still don’t know what caused these booties to appear in the first place. Twilight looked that the pink garments locked around her hooves, forehead creasing in worry. Sure, all that tugging just now hadn’t triggered another magical explosion, but that didn’t put her at ease. Using her magic on an already enchanted diaper could have disastrous consequences.

But she also didn’t have too many options to play around with. She could feel that mounting pressure in her bladder rear its ugly head again, forcing a time limit on her Hoofdini-esque escape from whatever spell had her trapped like this.

Okay… okay… I’ll just get these booties off then. Once they were gone she’d feel a lot more at ease, for sure.

She brought one up to her mouth, bit down, and tugged with all her might.

The muscles on her neck tensed suddenly; it didn’t feel like she was trying to slip a bootie off her hoof. Instead, if felt like she was trying to drag around an anvil!

Don’t tell me this is magical too! She squeezed her eyes shut, grunting as she pulled even harder.

The bootie shifted ever so slightly, but didn’t budge. Twilight dug her teeth into the soft fabric, refusing to give in.

“Come… on!” she grunted, giving the bootie one last decisive yank. For just a moment, she thought she felt it give a little.

POOF!

A new cloud of magic burst forth, detonating right in front of Twilight’s face. She jerked back, letting go of the bootie as her head slammed against the floor.

“Mmmrf!” As the remnants of the magical explosion faded once again, Twilight lifted her head up, feeling a throbbing pain where she’d connected with the crystal floors of her castle.

She reached back to rub the spot, disappointed that the bootie was still on her hoof. She chewed the rubber nub in her mouth, trying to think of what to do.

If I can just… wait a second.

What the heck was she chewing on?

Twilight’s gaze shot downward to her snout. Poking out just past her lips was the plastic guard of a—

“Er purfrfier!” She screamed, though muffledly.

Her heart skipped a beat. There was actually a pacifier in her mouth right now!

The rubber bulb was big. Big enough to keep her tongue pressed down and dominate the inside of her mouth. The pink guard covered her snout, barely leaving room for the corners of her lips. But the worst part had to be the straps.

One latched onto either side of the pacifier’s guard and wrapped all the way around her head, pinning the pacifier against her lips. The other set swooped over and under her snout, forcing her jaw to stay clasped around the bulb between her lips. In a state like this, she’d never be able to make another attempt at her booties.

Wait, is that this magic’s purpose? Twilight realized. Her heart sank as the pieces finally clicked into place. Her hooves tugging at the diaper had led to booties, and her mouth biting at the booties had led to a pacifier. Those bursts of magic had been far from random; they were a defense mechanism!

Twilight winced as a aching sting from her bladder tore her from her thoughts. Not good, she realized. At this rate, I might be forced to use my…

NO! No, don’t think of it like that!

She shook her head, putting to bed the very idea that it would come to that. Sure, she had to pee. Badly, even. But that urgency was not enough to cloud her judgement.

Sitting up again, Twilight took a deep breath through her nose, and exhaled while pushing her hoof out. Cadance’s calming technique always came in handy, though Twilight would have never guessed she’d have needed in for a situation like this.

But it did help clear her frantic mind. And with that, she smiled, the corners of her lips poking out past her pacifier’s guard. After all, she still had her trump card.

I don’t care what kind of magic this thing’s got up it’s sleeve. I know I’m stronger than it.

Twilight charged her horn, letting her purple aura coat her entire body. Once she was bathed in magic from head to toe, she cast the strongest curse removal spell she knew. White hot light burned throughout the entire room, forcing her to shield her eyes, even as the source of the spell. Sure, this was maybe a little risky, but she was certain she was being careful.

When the light faded, Twilight opened her eyes. Not that she needed too. The cushiony feel surrounding her hooves, the soft padding on her rear, and the invasive taste of rubber in her mouth all told her what her eyes confirmed: the spell had failed.

Well… maybe not… Perhaps the curse had been beaten, and Twilight just needed to give it a test to see.

Her bootied hooves tugged once more at the tapes of the diaper, but that proved to be as useless as it had last time. She set her sights on the pacifier, almost eager to get it out of her mouth as she was to get the diaper off her flanks. Both her hooves reached up and around her head, searching for some kind of latch to release the straps. In failing that, she batted away at the guard of the pacifier to no avail.

“Hrmph,” she huffed. She was as inept at undressing herself as a foal! The worst part was, she couldn’t even tell if the curse was lifted or not. It would be just as hard to get free with or without magic gluing this crap to her body.

Guess I have no choice, she lamented, her horn sparking to life once more. She couldn’t be so cowardly as to avoid using her magic when the alternative was to ask somepony to take off her diaper, booties, and pacifier for her.

Twilight’s aura wrapped around the tapes of her diaper. Going a step further, she grabbed onto all four booties and the guard of her pacifier as well. She had no idea if this was going to work or not, but if she could get everything off in one go then she was fine with taking the risk. Besides, if it failed anyway… No, she wasn’t going to think about that.

Okay… she thought, magic ever so slightly tugging at each point of contact. Three… Two… One!

Twilight threw everything she had into ripping it all off. The diaper lurched forward, taking her hips with it. The booties flew in all directions, dragging her hooves along for the ride. The pacifier yanked on her lips.

crinkle. crinkle. crinkle. crinkle.

It was like her body was trying to burst in all directions at once. It stretched her muscles till they burned, making it pretty obvious the curse was still in effect. Twilight was just about to cut her magic off when the tapes on her diaper started to tear off.

crinkle. crinkle.

POOF!

Another, almost predictable, cloud of magical aura erupted from the foalish gear on Twilight’s body. A veteran to this explosion, Twilight barely flinched as she was engulfed in a new bright burst of blue light.

No no no! She didn’t even need to wait for it to fade; she knew what this meant. Three times made a pattern after all.

Twilight immediately called upon her magic, but instead of her horn sparking to life it felt like she’d run into a brick wall instead.

No no no! She scrambled to her hooves, forced to waddle in her massive diaper as she bolted to the back of her throne. The shiny, reflective surface of her chair acted as a mirror, letting her inspect the damage. What she saw, resting just at the base of her horn, was a pale pink band: an inhibitor ring.

NO NO NO! The curse hadn’t been lifted at all! She’d utterly failed to counteract whatever magic was possessing that stupid diaper!

“MMM! Mmmph mph mmr!” Twilight desperately tried casting spells. Teleport, Incinerate, Telekinesis. Anything that had a remote chance of getting her out of these unwanted clothes.

All attempts were snuffed out before her horn even got the chance to cast them. Her inhibitor ring was the real deal alright; another bar in the prison cell that was this diaper’s curse.

Now,Twilight was really panicking. It wasn’t just the need to go anymore, though that pressure in her bladder had only grown. It was genuine fear overtaking her.

At this rate somepony would eventually see her like this. She couldn’t use her hooves, her mouth, or her magic to even attempt to free herself. Which meant eventually, Spike, or one of the girls, or Mayor Mare, or Cheerilee, or Granny Smith, or Princess Celestia, or anypony and everypony was going to see her wearing a diaper and suckling on a pacifier like a foal!

Wait… suckling? Though her heart was beating a thousand miles a minute, Twilight still snapped back to reality long enough to catch the guard of her pacifier bobbing back in forth in her lips.

She was actually suckling on it. It was as if her body was seeking out any comfort it could get now that her stress levels were starting to peak.

Twilight was about to stop, but actually… She found the more she focused on her suckling, the calmer she got. Her racing heart slowed to a sprint, and then a very mild jog.

This is actually… so soothing… Twilight let her eyes go half-lidded for a moment and she finally relaxed a little.

And then a dribble of pee escaped into her diaper.

Twilight’s eyes immediately bugged out. She bit down on the pacifier to force herself to stop, clenching her bladder as her face ignited into a bright, blazing red. Had she just…

I didn’t…

There was no way she’d just suckled her pacifier until she peed herself a little… right?

Twilight’s ears flopped down and she lowered her head in shame, feeling the few drops of urine against her backside until her padding finally soaked it up. She had.

Th-The curse! Twilight decided. It had to be the result of this stupid curse! She clung to that excuse, feeling her heart rate pick up again. A cold sweat broke out on the back of her neck; she needed a way to escape this. Now.

She flopped onto her plot, squeezing the fluffy padding against the floor.

crinkle. crinkle.

There was only so much she could do, but Twilight wasn’t thinking about any of the possibilities. Every neuron in her brain was firing at once with a single, solitary desire: take off that diaper!

It blinded her from anything else. Any existing escape route, any potential options, they were ignored. All Twilight wanted was to escape her diaper before the now very real possibility that she peed herself became a reality.

Her legs flung about in a frenzied panic. Not even Cadance’s breathing technique would be able to save her from this freak-out. It was so bad she didn’t even notice that she'd returned to her desperate suckling.

Twilight went straight for the tapes of her diapers. Her booties made grabbing them impossible, but that was not her intention at all. She instead moved to shove it right down her legs, like taking off a pair of pants. The diaper retaliated with loud protests, refusing to slide even a millimeter.

crinkle. crinkle. crinkle. crinkle. crinkle. crinkle.

Twilight didn’t give up. She fought every step of the way, ignoring the clumsy booties that would constantly cause her tenuous hold on the diaper’s waist to slip. Everytime they flew out of place she’d bring them back up like nothing had happened and press onward.

crinkle. crinkle. crinkle. crinkle. crinkle. crinkle.

She suckled violently, not even paying attention. She could feel the ache in her bladder only grow. Now that it had been able to release once, however briefly, it was only getting more desperate for relief. Twilight just kept pushing.

crinkle. crinkle. crinkle. crinkle. crinkle. crinkle.

“Mmmr mmph!” she screamed, tears of frustration welling up in her eyes. She smacked her hooves against the crinkly padding, for all the good it would do her.

crinkle. crinkle. crinkle. crinkle. crinkle. crinkle.

Why?! Why won’t you just let me go? She cried in her head. Minutes must’ve gone by, and she was still struggling on the floor, straining her muscles in a manic last stand. No matter how hopeless it seemed, Twilight was going to get this diaper off, curse or no!

crinkle. crinkle. crinkle. crinkle.

POOF!

It happened again. Twilight should have expected all her frenzied tugging would activate the curse again, but fear had overpowered everything else. Bright blue magic swarmed her once again.

Before she could open her eyes again, she already knew the problem; her hooves were pinned against her stomach.

Once the light faded, her eyes begrudgingly opened so she could inspect the damage. She chewed the pacifier in her mouth, heart still racing.

She was wearing a dress.

Not just any dress. A pretty pink princess dress, by the look of it. Bows and ribbons adorned her chest. The puffy shoulders were lined with a white, frilly trim. The ruffled skirt stuck out like a tutu, but was too short to keep her diaper out of sight. Her wings were pinned down to her sides now, unable to open against the squeeze of the tight fabric.

It was every bit a foalish and gaudy as she should’ve expected from this curse, but the real kicker was what it did to her legs.

Her fore legs were wrapped in the long sleeves of the dress, folding over themselves and strapped down. It was a strait-jacket, Twilight finally realized. A strait-jacket made to look like a filly’s princess costume.

“Mmmrph!” She grunted, trying to fling her fore legs out. They pushed against the locked down sleeves, but couldn’t break through.

Twilight rolled back and forth, kicking her hind legs as she tried to do something, but no amount of effort could get her new prison to budge. Somehow, it had only gotten worse. No matter what she did, it only got worse.

She stopped on her side, pressing her cheek against the cold floor of her castle. The damn holding back her tears finally broke, and two ran out.

Twilight laid there, crying, sniffling, suckling. What was she supposed to do? What could she do? Crawl into town and beg somepony to free her?

No. No way. If on the off chance somepony could understand her through her muffled moans, they’d be too busy laughing to help her.

Twilight sniffled again, more tears breaking through. Her struggles grew weaker the more she came to accept how futile they were. Eventually she just flopped onto her back and chewed on her pacifier.

After a minute or two of suckling, Twilight had finally calmed down somewhat. The initial panic had died, but the urgency of her situation was far from lost.

She attempted to cross her legs, but her diaper fought against that idea with sheer poof. Her bladder was begging for her to let go, but Twilight still refused it.

There has to be a way out of this, she thought. But what could she do? Her fore legs, her mouth, her magic… it just didn’t seem possible. She’d rather fight Tirek all over again than try to solve this puzzle.

Come on, that’s not right! She should be better than this. She was Twilight Sparkle, after all! Princess of Friendship, Celestia’s former protege, bookworm extraordinaire. How could she claim to be so smart if she couldn’t take off one measly diaper?

She tried sitting up, no small feat given her bound hooves. She kicked her hind legs to gain momentum, but ended up knocking into her throne. The crystal chair tilted up, one side pushed off the ground for a brief second before slamming back down with a THUD.

Twilight’s ears perked, suddenly. That gave her an idea.

Whenever she tried to remove any of the things on it, it only rebounded to make her situation worse. But what if something else forced her diaper off? Surely it could only respond to her and not, say, her throne.

She scooted forward, angling her diapered pelvis with the corner of the throne. Twilight was forced to wriggle along the floor like a worm, but that was the least humiliating thing about her situation so far.

When she finally got close enough, Twilight put her bootied hooves back up against her throne. Huffing through her nose, she pushed, forcing the hefty chair up.

Grunting, she squeezed her eyes shut and push as hard as she could, forcing the back of the throne a good half foot into the air before she was satisfied.

Holding it in place, she scooted further in, making sure as much of the poofy diaper as she could manage was underneath. It took a while until she was satisfied, but eventually Twilight was certain that she’d be able to lower the throne without crushing herself.

Slowly, carefully, she brought the heavy crystal back down. It touched down on her exposed diaper, and began compressing it.

crinkle. crinkle. crinkle.

Twilight winced, fearing retaliation. When no magical explosions hit her, she breathed a sigh of relief.

“Mmrnk Murrufturu.” She set the throne all the way down, letting it pinch her diaper between it and the floor.

crinkle. crinkle. crinkle.

Here comes the moment of truth. Twilight couldn’t think of a way the curse could rebound on her this way. She felt safe enough to give it a try, especially considering she didn’t have anything to lose at this point.

She put her hooves to the ground and started to push away from the throne. Her slick booties made it a challenge, but once Twilight got the hang of it she pushed with everything she had.

crinkle. crinkle. crinkle. crinkle. crinkle. crinkle.

The corner of her diaper stayed pressed under the weight of the throne, even as Twilight’s body moved in the opposite direction. It still latched onto her, refusing to let go of it’s prey. But Twilight was bent on refusing its refusal.

She pushed again, and again. Noisy crinkles filled the throne room as the diaper began to give more and more. Twilight twisted her torso, trying to put as much strength behind each push as she could.

Finally, she made some real progress. The diaper’s waist slid just below her hips. Twilight grinned behind her pacifier. It was finally happening.

crinkle. crinkle. crinkle.

POOF!

“MMMPH!” Twilight cried in frustration. A new burst of magic filled the room, burning her retinas with bright blue.

Before Twilight could see again, she felt the sensation of flopping up and down. Blinking back to reality, she saw the room falling and climbing before her. Bouncing.

Looking down, she saw her hind legs didn’t even touch the floor anymore. In fact, she was suspended several feet in the air. Most worryingly, her seat was gone.

It took her only a second longer to find out what had happened to it.

My throne’s a baby bouncer?! She let loose a muffled scream into her paci.

Surrounding her diaper was a pale purple cloth seat. Four straps connected to the seat, pulled taut. Twilight followed the straps up and over her head, where she saw they connected to a decorative bar just above her. The bar itself was hooked to another, single strap that hung all the way from the ceiling.

She was stuck along for the ride, hopping up and down with the flow of the bouncer. Twilight screamed into her pacifier again, kicking her hind legs and throwing her fore legs against the binding dress she had on. Her skirt swished as the bouncer kept bouncing.

crinkle. crinkle. crinkle.

Her diaper teased her, now forcibly pressed against her nethers and plot. Each bounce sent it leaping against her even harder, just hammering home the hopelessness of her situation.

If she wasn’t before, Twilight was now totally and completely trapped.

It really began to sink in on her ninth bounce. The realization that she couldn’t go anywhere now, or do anything. Not even calling for help was an option now. She was stuck until somepony wandered into the throne room and even then, there was no guarantee they’d fare any better than she had against the diaper.

And who knew how long that would take, too? Twilight bit down her pacifier, needing a few more bounces before she really came to terms with what she’d eventually have to do.

Her bladder was about ready to burst. It had been more than patient with her in her struggle with the diaper curse, but was fed up with waiting. Twilight couldn’t blame it, either. She needed the ache to go away, one way or another.

Her hind legs squirmed below the bouncer, trying in vain to hold back the inevitable. Desperation was at its peak, and Twilight knew nothing she could do could stop this now. Finally, she gave in, accepting the fact that nopony would rescue her in time.

She peed her diaper.

“Mmmf!” she moaned with relief. The ache finally dissipated as she flooded her diaper. Its padding soaked up her accident with ease, eagerly accepting more and more.

She shivered as the sensation of warm dampness spread, covering her crotch and eventually her plot as her neverending torrent kept going.

Twilight suckled on her pacifier, doing anything she could in an attempt to ignore it all. But there was no hiding from the fact that she was pissing herself, willingly, while diapered. Tears reemerged from her eyes, and she sniffled while her potty break continued.

Eventually, mercifully, she finished piddling her pampers. The bouncer was slowing down by now, but still going. It forced her sloshy diaper to smack against her butt, over and over and over again, not letting her forget what she’d just done.

Twilight put up a pitiful, post-wetting-herself struggle against all of her restraints, but it was about as half-hearted as she could possibly muster.

Now all she could do was wait for a rescue. And then hopefully she could find whoever was responsible for this cruel, sick joke.

Author's Note

I think this chapter's a good spot to mention that this whole fic was inspired by this little picture.

It Goes Too Far

Starlight yawned, putting a hoof over her mouth as she traversed the castle halls. Her nap may have been over, but it would still be a while before she truly recovered from overextending her magic. More rest would likely do the trick, but for now she was just too excited to go back to sleep.

Three hours had passed since her prank had been set in motion. The fifteen minute cat-nap she’d hoped to sneak in had really ballooned, and now she was worried she might have missed everything.

Three whole hours, Starlight thought to herself with a snicker. I bet she’s freaking out right about now!

Of course, there was also the possibility that Twilight had managed to escape the prank already, even though Starlight had put everything she could into guaranteeing Twilight wouldn’t be able to get out on her own. They’d long since proven their power was equal, after all, so that hopefully meant Twilight couldn’t get free without help. But she wasn’t going to bet on that. Who knew how things had gone down so far?

If she missed her chance to catch Twilight diapered then her first prank ever would be ruined. That was not going to happen.

Tired though she was, Starlight picked up her pace to make a beeline to the throne room. There wasn’t even a guarantee Twilight was still there, but it was still the best place to start looking. Besides, while diapered there were only so many places Twilight could go. Starlight would find her eventually.

The tall doors to the throne room came up even sooner than she expected. Starlight’s heart began to beat faster with anticipation. Any more waiting and she risked it bursting out of her chest.

Even with that fact in mind, she still lingered just outside the doorway, ears at attention as she pressed them into the thick door.

crinkle. crinkle. crinkle.

“mmph. mmmrr!”

A near sadistic grin spread across Starlight’s face. Those foalish crinkles were unmistakable, and the same could be said for the struggling grunts that accompanied them.

“Yes!” Starlight whisper-cheered, hoof pumping the air. Her first prank had gone off without a hitch! She hadn’t even missed it.

Her heart may have been racing before, but now it was full throttle. She’d done it! She’d actually pulled off a successful prank. The only thing left to do now was…

Drink in the glory. Starlight’s smile was crooked.

The heavy doors found themselves wrapped in the blue aura of her magic. Starlight threw them open effortlessly, prancing into the throne room with her manic look only growing.

“GOTCHA!” She yelled.

And then Starlight froze, only just now stopping to actually see the result of her prank.

Twilight was suspended in mid-air. Her hind legs dangled a solid three feet from the floor, as a baby bouncer cradled her right where her throne was supposed to be. That alone would’ve been enough to drop Starlight’s jaw through the floor. But what sent her jaw hurtling towards the center of the planet was what Twilight was wearing.

The diaper peeking out from the purple seat of the bouncer was expected, but the matching booties, goofy filly dress, pacifier with straps, and horn ring were most definitely not.

Twilight’s disheveled eyes made contact with Starlight, stirring up a frenzy.

“Mmmhmmph!” She cried, kicking her hind legs and throwing her body forward. She swung the baby bouncer forward, turning herself into a foalish pendulum. “Hmmph mmrr!”

It managed to snap Starlight from her confusion, but still left her with questions. The standard “what?”, “why?”, “how?”, and “huh?” all flashed across her mind as she regained her composure and retrieved her jaw from the hole it’d made in the ground. For a brief second she wondered if Twilight had gotten herself dressed up like this on purpose, but the mare’s repeated struggles and muffled cries for help quickly disproved that.

So then how…? Starlight’s eyelids fluttered with realization. Her spell!

Did the Padded Prison do all of this? She wondered, walking closer to the spectacle before her.

It was the most plausible possibility she could come up with. But if so, how? The Prankopedia hadn’t mentioned anything like this in the spell’s description. All it had covered was just the unremovable diaper.

Well, that and a few lines of red text begging the practitioner not to... overcharge... the spell…

Oh…

“Heh heh,” she nervously uttered, rubbing the back of her neck. “S-Sorry about this Twilight.”

“Mmmrmmrgh!” Twilight angrily kicked her hooves, glaring at Starlight. It hadn’t taken the sharp mare too long to figure out what Starlight had meant by that ‘gotcha!’ earlier, and her apology just now had sealed it. Starlight was in for one heck of a scolding.

“Oh come on,” Starlight grinned meekly, trying to save face. “It’s just a prank, Twilight. An itty bitty little prank.”

“Mmr phrammk?” Twilight twisted in her bouncer, as though trying to hurl herself at Starlight. “Mmh?”

Starlight held up a hoof, silently asking Twilight to take it easy. “Well, yeah. I swear it was just supposed to be the diaper though. All this other stuff was an accident.”

Twilight face flushed even redder all of a sudden. Right as Starlight uttered the word ‘accident’, as if it was some touchy subject.

It was right then that Starlight’s nose detected something that had flown under her radar up until now. The stale stench of urine masked the air around them. Starlight sniffed, nose wrinkling at the smell.

It didn’t take long to put two and two together.

“Oh…” Starlight’s pupils shrank slightly. “You mean you had to…”

“Mmmrph!” Twilight grunted, narrowly missing Starlight’s head with her hind leg. Starlight retreated a few steps after that.

“S-Sorry,” she said, though the curving of her lips betrayed her. Starlight covered her mouth in a pitiful attempt to hide a snicker. Come on, Twilight had actually peed herself! It was too funny not to laugh at.

“Mmr! Mrr mmrph mmr mmh!” Twilight’s face burned, only fueling Starlight’s laughter.

“I know, I know! Just—” Starlight dissolved into bubbly chuckles. She’d forced Twilight to pee her diaper! Just wait until Pinkie got a load of this; it would put all of her pranks to shame for sure!

Twilight’s ears flopped down, face diving a few shades of red deeper. Struggling against her binds, she grunted again. “HMMPH MMR!”

“I will, I will,” Starlight promised through laughs. Looking up at Twilight, she couldn’t help but break down all over again. The dress, those booties, that freaking pacifier! Now that the shock of it all had died down, Starlight couldn’t find this whole situation anything other than hilarious.

Her first ever prank had reduced a Princess into a diaper wetting filly. How could she not feel at least a little giddy at that? The inevitable scolding she was due for this hardly registered in her mind. She just howled, barely remembering to breathe.

“HMMPH MMR!” Twilight repeated again, an extra level of embarrassment-fueled rage in her muffled voice.

“Okay…” Starlight struggled to calm down. “Okay.” It was time she actually got Twilight down. If for nothing else than to see that wet diaper for herself.

She approached the dangling mare again, this time wary of her free hooves.

“How’d you even end up like this, anyway?” Starlight asked, her magic enveloping the baby bouncer to pull it free.

“Mmm…” Twilight’s face scrunched with worry. “Rrm, mmhr mrph mmhr—“

Starlight tugged on the bouncer, but was met with surprising resistance. The bouncer stayed firm; all she did was send Twilight’s diaper into a noisy fit.

crinkle. squish. crinkle. squish.

“Huh.” Must be on pretty tight. Made sense, she’d made that diaper really thick. “Hang on, Twilight,” Starlight said.

“Mmmph!” Twilight cried, fearfully.

“Yeah, yeah, I know you want to get out.” Starlight’s magic gripped tighter. “Just give.”

Yank! crinkle. squish.

“Me.”

Yank! crinkle. squish.

“A.”

Yank! crinkle. squish.

“MMMPH!” Twilight cried as the bouncer finally loosened.

“Sec!” Starlight yelled, pulling with all of her might.

crinkle. squish. crinkle.

POOF!

“Ah!” Starlight fell back as a sudden flash of magic consumed the room. The bright blue light looked strangely familiar, for the two milliseconds she saw it before being blinded.

Her plot hit the floor, the light fading away soon after. Starlight blinked to regain her bearings, fuzzy vision coming into focus on Twilight. The diapered mare had already recovered, as though she had practice dealing with such magical outbursts.

Twilight was staring at her, pupils mere specks in her eyes. A weak whine came from her pacified mouth.

“Geeze, what was that?” Starlight asked, her plot sinking deeper into the floor. It was much softer than she remembered. Her eyes drifted down to see why and she froze up, heart skipping a beat.

She was wearing a diaper.

The fluffy, white garment wrapped around her crotch was reminiscent of the same she’d stuck Twilight in, right down to how thick and poofy it was. She strongly suspected it had something to do with that burst of magic. It made her hesitate to try and take it off, fearing it may not budge if she did. Starlight gave a cursory attempt to move her hind legs, and winced at the sound generated.

crinkle. crinkle.

“Uh… alright.” Her face flushed a little. It only reddened more when she looked up back at the staring Twilight. Now the diaper was on the other flank, so to speak.

But Twilight didn’t seem so too happy about the sudden turnabout. In fact, she seemed significantly more afraid then before.

“Mmmrphmm, mmph mrrm.” Twilight nudged her head forward, pointing with her horn.

Starlight wrinkled her brow at first, unsure of what that meant. But her eyes drifted to the inhibitor ring around Twilight’s horn and she suddenly felt her heart sink.

She tried calling upon her magic, hoping her hunch was wrong. Her horn failed to light. Gulping, Starlight brought her hoof up and felt a thick band around it’s base.

Oh no…

“I-I can fix this,” Starlight sputtered, not even really sure how this had happened in the first place. Twilight whimpered, demonstrating her confidence in Starlight’s abilities.

“I can!” Starlight protested. She struggled to her hooves, gait spread by her new poofy friend. “I just need to… to…”

What could she do?

Her magic was sealed off, she was diapered, and Twilight was still stuck in the baby bouncer, among other things.

Well I could— Her thoughts were cut off by a sudden rumbling in her stomach. Starlight’s ears flopped down as she felt a pressure slowly start to build in her bowels. Oh great…

Starlight looked back at her diapered rear, brows furrowing. All of a sudden she deeply regretted eating all of those Etceteras earlier.