Royal Oopsie

by Wandering Pigeon

Rating: mature
Tags: Princess Celestia, Slice of Life, My Little Pony: Friendship is Magic, Porn, Sex, Fetish
Length: 6649

Princess Celestia wanted a little private time. Sadly, she didn't think enough to take a few basic precautions, such as lock the door.

Princess Celestia wanted a little private time after a long day of work. Sadly, she didn't think enough to take a few basic precautions first, such as lock the door. As a result, she ends up in a pretty tight spot.

Good luck, Princess. You're gonna need it.

Warning: contains diapers, diaper usage, ABDL themes, and masturbation.

Published 2016-10-07 21:00:01 UTC
Last updated 2016-10-08 23:01:51 UTC

Mistakes Were Made

Celestia flicked her quill across the parchment, signing her name to approve the bill before rolling up the document and stamping it with the royal seal.

“Finally,” she reclined in her chair with a sigh. All of her work was finally done.

Teleporting the scroll away, Princess Celestia looked around her study. The walls lined with bookshelves stretched all around her, dominating her view. Eventually, her eyes settled on the grandfather clock she kept waiting in the far corner.

“Five?” Her eyes widened as they read the time. “As in five in the afternoon?”

She double checked, and sure enough that was right. Celestia pushed her chair out and stood up. “That’s… wow.” Somehow, by some miracle, she’d finished all of her work early. There was still a couple of hours before the sun needed setting, before dinner would even be served. Luna was still probably holding court right now.

“Huh…” The realization dawned on her that she had free time. Alone time.

Play time.

A naughty grin spread across her face, plastering itself there as she giddily jumped in place. It had been so long since her last chance to do this. How long, precisely? Months perhaps? Maybe even a year. Either way it had been far, far too long.

Spurred on by glee, Celestia dashed out of her study, practically bursting into the hallway. The guards stationed on either side of the doors flinched at her sudden appearance.

“Uhm… Princess?” One asked.

“You two are dismissed for the evening,” she quickly told them. “I have something important to attend to right now.”

Both guards shot each other confused glances, but their concern melted away when the realized they just got the rest of the night off. They saluted fervently and chanted in unison, “Thank you, Ma’am!”

Celestia grinned as they scampered away. Now she could be all alone.

She slinked through the halls of the castle. Right now, it was fairly empty with most of the staff on a shift change and most nobles gathered at Luna’s court, so nopony saw her sneak back to her bedroom.

Celestia hurried inside her room and shut the door, exhaling away her shakiness. With a flick of magic she took off her regalia and set it on her bed. She wouldn’t be needing it right now.

Without missing a beat, she darted over to her bed and knelt down next to it, looking over at a section of the wall.

Her former home, the castle in the Everfree Forest, had been filled to the brim with trap doors and secret passageways. After moving to Canterlot, Celestia had made sure to include as many as she could in a fit of nostalgia. Her first round of castle staff had found them somewhat annoying, but over the centuries less and less maids would accidentally fall in trap doors, and eventually they had been forgotten by everyone except Celestia. Even Luna didn’t know about them at the moment, though Celestia had meant to tell her many times.

The panel of wall she stood in front of now was one of those secret switches, and she was fairly confident her closet held another, but it had been a long time since she’d used it, or most of the castles hidden surprises, though she could still recall where each was.

With her hoof, Celestia pressed it against the wall firmly, triggering its internal switch. The panel rolled back and to the side, exposing the compartment within and all of Celestia’s favorite toys.

The first thing she saw were four pink, poofy booties, designed for foals but sized up for her. They were actually her old booties from when she was a foal that she’d re-discovered one day, and used her magic to restore and re-size them.

She placed a hoof into the compartment, letting it sink into the soft foal shoes and sighed. They were just how she remembered them.

With her magic, Celestia picked up all four booties and lifted them out. She went from kneeling down to sitting so she could lift all her hooves into the air. Each bootie was carefully put on. They were each so snug and tight that Celestia couldn’t help but grin when she was done. Her hooves were now completely encased, effectively making them useless and leaving her with the feeling of being a helpless foal. And she loved that.

The next item revealed was by far Celestia’s favorite. A package of a dozen XL extra poofy adult diapers. If the booties started her transformation to a helpless foal, these would continue it. Celestia grabbed the package and ripped it open, taking out the poofiest diaper she saw with her magic. It’s design was cute: mostly white, but the back held lines of purple, frilly ruffles.

She levitated it to her hooves, holding it awkwardly in her booties before pressing it against her cheek. The soft padding crinkled as her cheek sank into it, the ruffles tickling her nose. Celestia couldn’t hold back a squeal.

She laid down, lifting her legs to the sky while her magic took over. She wrapped the diaper around her waist, tucking her tail through its hole before taping the diaper shut.

It was every bit as snug as the booties, and poofier than she remembered. The padding flooded her marehood, ignited a fire that had been dim for far too long. Forelegs jittery, Celestia almost pressed her hoof to the crotch of the diaper, but held off. What she had now was a good start, but she needed more.

Turning back to her secret supplies, she withdrew two pink ribbons. Nothing was particularly special about them, but they certainly added to the look she was going for. Grabbing a clump of her ethereal mane with her magic, Celestia tied the ribbon around it, leaving a nice little bow when she finished. She grabbed the rest of her mane and tied it the same way on the other side, leaving her with two side ponytails; the perfect foalish style for her.

Next up, she withdrew a large belt. It may seem like an odd thing to keep in there with all the foalish supplies, but Celestia had a good reason. She didn’t like just pretending to be a foal; she like being helpless. Not just feeling, being. And this belt only added to that when used correctly.

She maneuvered it around to her back and made sure her wings were tucked in. They wanted to splay out in excitement, but she knew this would be more fun. Looping the belt around, Celestia pinned her wings to her side, buckling the belt only when it was tight, but not uncomfortable.

As her aura dissipated, Celestia tried to use her wings and found them useless as the pushed against their new bonds. She grinned again. Perfection.

Her loins called out, begging for her to relieve them. The sensation of her diaper rubbing against her marehood every time she shifted around was maddening. She exhaled violently, putting off the desire for just a little longer.

She still had important items in the compartment, but this next step had to come first. Her horn ignited and she cast a summoning spell. Before her appeared a bottle of warm milk, and a box of laxatives. She grinned.

Taking off the bottles rubber nipple, she popped open the laxatives and poured six tablets inside. Her eyes caught the instructions on the side of the box and she smirked devilishly. The recommended amount was two. At most.

Tossing the box to the side, Celestia stirred the milk to make sure the laxatives dissolved, before putting the nipple back on the bottle.

Licking her lips, she clasped the bottle in her bootie-d hooves and lifted it up to her mouth. She wrapped her lips around the nipple and suckled. Creamy, delicious milk flooded her mouth. It was a little chalky from the laxative remnants, but she couldn’t care less about that.

Sitting down, she rocked back and forth of her diaper in rhythm to her suckling. Her libido asked for relief again, but she denied it. She wanted a full diaper first.

In the past, she’d had to struggle and wait endlessly for her diaper to become full, but now to get the most out of her private time, she’d found all she’d been missing was the medicine specifically made to make one go. And now, in a few short minutes, she wouldn’t have a choice.

She suckled for a few more minutes, making sure to get every last drop of the milk. When the amber nipple finally left her mouth, she felt a soft burp escape her lips and blushed.

“Oh if only Equestria could see me now,” she mused. Humiliation was a fantasy to her as well; it went hand in hand with her foalish desires. However, it was to remain just a fantasy, and not a reality. Her sensual pastimes were an ill fit for a Princess of a nation, and it was best said nation kept its nose out of it.

Her drugged milk finished, she smacked her lips, tongue still buzzing with the taste. She set the bottle in the compartment for now and took out one of the last items: her pacifier.

It was hot pink, with her Cutie Mark on the guard. Attached to the ends were rubber straps, designed to loop around her head and two more that were for encasing her jaw.

Giddy as a school filly, Celestia let the pacifier glide into her mouth. She sighed into her suckling, her lips moving back and forth in the most titillating way. Her magic took over as she closed her eyes, taking the straps and attaching them at the back of her head, and then grabbing the rubber that went over and under her jaw. Once it was done, she practically moaned. It felt so good to be trapped like this.

Her eyes lazily opened as she suckled and the last item in her hidden cabinet caught her eye. I was a small black band.

At the sight of it her marehood quivered.

The band was what was known as an inhibitor ring. Its purpose was simple, block out all the magic of the pony whose horn it was around. Celestia had come into possession of this ring a long time ago, and had only ever used it on herself once, but she couldn’t really recall the experience too well.

That being said, in her quest to feel as helpless as possible, she realized that she was still in total control as long as she had easy access to her magic. After all this time, she wanted the best private experience she could get and this ring would definitely provide it. But should she use it? Restricting her magic seemed… risky.

It should be fine, Celestia reasoned to herself. As long as I am not careless I should be able to get it off when I'm done.

She wrapped her aura around the ring, lifting it to the top of her horn. Allowing her magic to cut off, the ring fell down. It slid far down her horn, practically to the base. Celestia’s heart skipped a beat and she was worried. Lifting up her hoof, she pressed her bootie lightly to the ring and exhaled with relief when she felt it was still loose. She smiled, realizing there was nothing to worry about.

Knock knock knock.

“Mmph!” Celestia flinched, her hoof jutting down. She heard the faintest of snaps as the ring locked into place.

She froze, forgetting that there was somepony at her bedroom door for a moment. Swallowing, Celestia tried to use her magic. Nothing. She tried to pull the ring off, or at the very least move it, but her bootie had no effect.

Oh...

“Princess?” a soft voice called from the other side of her bedroom door. “Are you in here right now?”

Celestia’s eyes bulged in panic. The shift change! I forgot the first place the next maids come to clean is my room!

Her heart thumped wildly. Fear, panic, and the tiniest bit of excitement swirled about inside of her. She tapped the wall, her secret compartment closing and she stood up.

“Mmmph mrr…” She bit down, nibbling the bulb of her pacifier. She couldn’t tell the maid not to come in!

“Hello?” The maid called again.

Celestia’s ears flopped down. No, no this can’t be happening! No no no no no!

She whipped her head around the room, trying to think of a way out, or a place to hide, or anything!

Wait, the closet! Her eyes swiveled around to face it. Perfect! She remembered it had one of her secret doors there, and what better time to use it then now?

Hearing the doorknob turn, Celestia silently cursed herself for not locking her bedroom as she dove towards her closet. Just as the door opened and the maid walked in, Celestia managed to sink behind her collection of formal gowns.

Peering through the fabric, Celestia watched as the maid entered. The mare looked around and shrugged before taking out a feather duster and getting to work. Celestia chewed her pacifier. It wouldn’t be long before the maid saw her abandoned regalia on the bed and got curious. It wouldn’t be long before she worked her way over to the closet either.

Stepping back, Celestia felt with her hoof for the switch she knew had to be on the back wall. It wasn’t easy with her bootie, but she made do. She’d have to if she needed a quick escape.

“Hmm, what’s this?”

She winced. The maid found her regalia. It wouldn’t be long now.

“Princess Celestia, are you here?” The maid looked around, eyes passing over the closet as she walked closer.

Heart thumping wildly, libido screaming, mind racing, Celestia whipped her hoof over the wall in pure desperation. Suddenly, her hoof found a tiny button near the bottom corner.

click

WHOOSH

The back wall of her closet rocketed around, flinging Princess Celestia out on the other side. The suddenness of the motion left her with little time to prepare. She landed face first on the ground, diapered rump stuck in the air.

She breathed heavily through her nose, suckling in an effort to calm down. She did it! The maid hadn’t seen her and she got away!

Looking up, Celestia’s heart stopped. It appeared, in her hurry to escape her room, she had forgotten where the secret door led. Now she knew as she looked around the interior of her castle, a window to her left and the halls to her right and front.

She may have escaped her room, but she was far from home free. Right now, she was in the halls of her castle. Magicless, wings bound, pacified.

Diapered.

Her stomach gurgled, reminding her that those laxatives she’d taken would be kicking in before too long. To her right, she heard hoofsteps, reminding her that the shift change was over and new guards, maids, and butlers were walking the halls.

And she’d just ‘escaped’ the one room where she’d had a chance to not be seen.

Oh no...

A Messy Predicament

Panic took over immediately. She heard hoofsteps from the right, drawing closer as the ponies they belonged to began rounding the corner. Celestia scrambled forward, running down the front hallway, which was mercifully empty. For now.

She made it just in time to avoid being seen, but didn’t stop. Celestia ran down the hall, stumbling awkwardly as she tried to keep a steady pace with her hind legs spread apart by her diaper. The design of her castle gave way to many doors and branching paths along each hallway, this one included. There were a lot of opportunities for more ponies to potentially see her. She kept this in mind as she darted down. Then she skidded to a stop.

“I’ll begin sweeping if you take the walls.”

“Aww, but I did the walls last time!”

“So do them again, I already told you I’m sweeping.”

Voices!

Celestia flinched as she heard talking coming from a pair of maids as close as the upcoming intersection. Her heart thumped wildly and she swallowed. Now what?

She shot glances to the right and left of her, hoping that she might remember where another secret passage was. Her gaze settled on a door to her right that was slightly ajar. Perfect!

Bolting in and slamming the door behind her, Celestia inhaled deeply through her nose. Now safe from view, she took a moment to just calm down and breath. Her heart was beating wildly, but she managed to steady it some after a minute or so. Squinting against the dark expanse she found herself in, Celestia fumbled along the wall with her bootie-d hoof until she finally flicked a light switch.

The room brightened, revealing itself for what it really was: a tiny bathroom. It was so small in here that Celestia couldn’t even stretch out her foreleg before hitting the wall. It had a toilet on one end and a sink on the other, with just enough space for a pony of her size to fit in between. Directly above the sink was a mirror and beside that was a little towel hanging by a hook. All in all, it was about a minimalist as a bathroom could be.

Celestia blushed as she saw her reflection. Her ponytails, her pacifier, her diaper… it all came together to make her appear perfectly like an overgrown foal. At least she got the look she was going for, but it couldn't stay unfortunately.

Now that she had time to think without needing to worry about hiding so much, Celestia’s heart rate steadied some. She looked down to her booties, her diaper, and she suckled her pacifier a little for comfort. They all needed to come off.

She started with the booties, poking at the edges as best she could, but found that to be useless. Her hooves slipped by the sleeves of them without even making in impact. Grunting, she decided to use her teeth. Except…

Celestia tried to open her mouth, but the straps of her pacifier wouldn’t let her. Furrowing her brows, she reached around her head to undo the strap, but her fuzzy booties made it impossible to grab onto anything.

Now slightly panicking, Celestia turned to her diaper. If that pacifier and booties wouldn’t come off, she at least hoped it would. She went to pop the tapes off, but her bootie just slid right over them.

Now really panicking, Celestia tried to rip her diaper off. She yanked, pulled, tore, and wiggled, but nothing she could do impacted the poofy padding secured to her waist. All she succeeded in doing was making a lot of crinkling noises, which at worst might get one of the castle’s staff curious as to what was happening inside whenever they might pass by the door.

Biting down on her pacifier, Celestia became worried. She couldn’t actually be stuck, right? She was sure sometime in the past she’d been able to take this off…

Well…

Now that she thought about it, she’d always had her magic to help her out. Turning her attention back to the mirror, Celestia looked at the black band resting at the base of her horn. Just to see, she attempted to call upon her magic, but nothing happened.

Her stomach flopped and Celestia found herself really regretting trying on the horn ring. What had she been thinking?

Short answer: she hadn’t. It had been a heat of the moment decision based in arousal. Just because she couldn’t remember how poorly it had went the last time didn’t excuse her from ignoring the dangers before placing it on.

Though, not locking her door was probably a more face-hoof worthy moment.

Locking the door…

Celestia’s eyes widened and she turned to the bathroom door. It wasn’t locked.

Heart thumping, Celestia practically dove for the doorknob, aiming to turn the little switch that would ensure her privacy. Except, when her hooves came up she saw her pink booties again and knew it would be a fruitless effort.

Trying anyway, Celestia only proved herself right. The booties couldn’t get a grip on the tiny switch, meaning the bathroom would remain unlocked, and she was still vulnerable to be seen like… this.

She couldn’t stop a whimper from escaping her. This was not good! She wasn’t just stuck outside of her room, she was stuck in this getup too! If anypony saw her… her marehood quivered at the thought. She knew it wouldn’t--

Wait a second.

Her marehood… was quivering?

Oh no, please don’t tell me I’m liking this!

As horrifying as the realization was, Celestia couldn’t deny it. This was her fantasy, wasn’t it? Humiliation, helplessness, diapers… Was it really a surprise that she was turned on right now?

She chewed her pacifier as her nether region tingled. This was already bad enough; to think that she wanted to masturbate right now on top of everything else going on…

No.

Celestia pushed the thought from her mind. Right now wasn’t the time for that. She needed to figure out what she was going to do.

She suckled involuntarily as she ran through her options. She had to be free in a couple of hours because she needed to lower the sun. Sure, Luna was more than capable of doing so, but if she was absent, a massive search effort would be undertaken. The last thing she needed right now was ponies actively looking for her.

So that meant she needed to at least have her horn freed soon, which made that her primary goal right now. Besides, with her horn freed, getting out of everything else will be easy.

Of course, she couldn’t escape the horn ring in this bathroom. Celestia looked around one last time to make sure she wasn’t missing anything. Sadly, she couldn’t see anything in this bathroom that might help her get the horn ring off.

Sighing, Celestia mulled over what to do next. She dared not step out of the bathroom; if there was even the smallest chance she might be seen, then she wanted to avoid it. So where did that leave her?

Her thoughts were suddenly interrupted by a gurgling noise. Celestia clutched her stomach, feeling a buildup in pressure. For a second, she was confused. Then her ears folded down as she remembered.

The laxatives.

Her throat went dry at the realization that she didn’t have hours before the situation worsened: she had minutes. At best.

Granted, the laxatives she’d taken weren’t fast acting, but she had used three times the recommended amount. Combine that with a rather large breakfast, and lunch, along with her tendency to snack throughout the day and she knew things were going to get… messy.

And she didn’t have any diapers to change into, meaning the one she had on now would have to hold unless she could get it off.

Her determination to escape her foalish garment doubled. Sitting herself on the lid of the toilet to get a better angle, Celestia went back for round two with the diaper. Her bootie-d hooves went and poked at the tapes, tugged at the sides, and even just tried pushing it off. Again, it turned out to be a futile effort.

The diaper stayed snugly around her waist, completely unaffected by all her efforts to remove it. Meanwhile, her stomach continued to gurgle and tighten, and Celestia knew what was going to happen soon.

Biting down hard on her pacifier, Celestia decided the best thing she could do was make her way back to her room. By now the maid should have left, so she would have privacy to… do her business before figuring out how to free herself. The only question was, how to get back?

She knew there were servants walking the halls of the castle right now. Even though the bathroom she found herself in was relatively close, she needed to guarantee herself a way back without being spotted.

“Mmph!” Celestia said, an idea springing to her mind so suddenly that she forgot she couldn’t talk. Face flushing, she prayed nopony had heard her.

The castle has a lot of secret passageways, she thought, once she didn’t hear anything. I’m willing to bet this bathroom has one too… even though I don’t know where it might go.

Celestia began looking around, trying to identify a potential hidden passageway. She looked for cracks on the wall, loose titles, hidden buttons, and anything else that may hold the key to her escape from the bathroom.

Her stomach tightened further, and Celestia did her best to clench her gut. She was going to lose control any minute now… she just hoped her diaper could take it.

But it was worse than that. Her impending accident was also doing a good job of riling her up. Her marehood had already been tingling each time it brushed up against its cushy prison, but now that it was about to get messy too it became harder to control.

Just the anticipation of pooping herself got Celestia’s hoof lowering to the crotch of her diaper. She shook her head to resist, fighting the foggy sensation of horniness in order to think clearly.

Resisting the urge to lose it, she searched even harder now for a secret passage. However, it wasn’t easy. Her gait was spread wide thanks to her diaper, making it hard to cross her legs in an effort to hold off nature’s call. Even though it would only buy her a few seconds at best, they were seconds Celestia couldn’t afford to lose.

Eventually, Celestia’s hoof ran along one of the hinges holding the bathroom mirror in place and it gave a satisfying click. The mirror swung open and out, revealing a tunnel that had been dug into the wall. It was nice and large, almost a perfect circle, and the inside was coated with what looked to be stucco or some similar material. Celestia breathed a sigh of relief upon seeing it. At least now she could get out of the bathroom.

Her stomach gurgled again, and Celestia knew she wouldn’t last much longer. She crossed her legs as tightly as she could and looked deeper into the mirror tunnel. She couldn’t see where it went, and wasn’t able to recall anything specific about it. For all she knew, it might end up dumping her right outside the castle’s front door.

Celestia mulled over her options. She could try and stay in the bathroom for a little while longer, but that wouldn’t accomplish anything. At this point, she knew she wouldn’t be getting out of her diaper without assistance from something. All waiting around would do would give a higher chance to the fact that somepony could walk in on her.

Chewing her pacifier, Celestia came to the decision that she had to go through the tunnel, sooner rather than later. She approached it cautiously, sizing up it’s size. It definitely appeared big enough for her, especially considering all the secret passageways in the castle had been built for her size specifically.

She started crawling in, pushing herself forward as best she could. Her diaper crinkled noisily behind her, and she winced. Biting down on her pacifier, she waited, and hoped nopony had heard. It didn’t seem like it.

Continuing on, eventually her hind legs raised into the air as she got half her body to fit. Using her forelegs, Celestia managed to move forward, her diapered bottom sliding in after her. Before her legs could get all the way in, she gave the backside of the mirror a short kick, knocking it free to swing back into place. She didn’t want anypony getting suspicious if they did come into the bathroom.

When darkness enveloped her, she realized that may not have been such a good idea. She suckled on her pacifier, a little nervous about being suddenly blinded, but it was too late to turn back now.

Celestia kept going, crawling with her belly close to the ground. Her poofy diaper scraped along the bottom of the tunnel the whole time, annoying her to no end. Instead, she tried to distract herself by considering where this tunnel might lead; there were a large number of possibilities, after all. Before those thoughts could really take hold the pressure that had been building up in her bowels magnified.

She grunted and whimpered softly. It was going to happen soon and she knew it. Exhaling heavily out of her nose, Celestia cursed her libido for getting her into this situation.

As long as she could get somewhere safe, isolated, and preferably with something to free herself, it would all work out though. Celestia kept going, taking comfort in that thought and forcing down the urge to use the bathroom.

Then, while crawling a little further, her hoof suddenly slipped as it seemed the ground before it was ripped away. Celestia jerked to a stop, her foreleg made out the shape of a steep ramp. Squinting, she was able to see that the tunnel had led to a very sharp drop off, almost like a slide.

Suckling, Celestia tried to see where it led, but it was just too dark. She tilted her head back, but knew it was pointless to try and turn around now. The tunnel was too narrow anyway.

With a suckle, a sigh, and a clench of her bowels, Celestia realized what she had to do. Scooting forward, she let gravity do the work as she slid down.

Wind whipped by, flinging her ponytails behind her head as she went down, dropping at least a full story before reaching the end of the slide. It deposited into much larger space, but Celestia couldn’t take the time to appreciate it. Her entrance speed was so fast, that when she hit the bottom of the slide she started rolling in an instant tumble.

The world spun around as she did several somersaults across the floor, mercifully stopping before she hit a wall.

As she managed to stop spinning, Celestia tried to get a grip on where she was. For whatever reason, the room she found herself in was brighter than the tunnel, though still very dim. She could make out its size, which was much wider than the tunnel, but about as high. She still had to crawl around.

In terms of space, there wasn't much. It was maybe twice as big as the bathroom had been. Ropes hung from the ceiling and a few support pillars and snaked all around the tunnel, which was weird. It was also dusty, and the corners were covered in cobwebs, a sure sign that nopony had been in here in a long time.

As Celestia continued to look around, she saw a thing metal grate where light was seeping through from the floor. Voices also seemed to be attached to it.

Scuttling over, Celestia hoped that she would be able to get her bearings as to where she was thanks to this vent. The floor below her creaked at the strain of her weight, but she ignored it. Peeking through, she saw several ponies dressed as though they were upperclass and knew it. The voice also became more familiar too.

“We simply do not have the means currently to repave the upper district’s roads. Right now the infrastructure budget is focused on--”

Luna!

Celestia would recognize her sister’s voice anywhere, which meant she was currently in the ceiling space above the throne room! The ropes everywhere suddenly made a little more sense; they were the remnants of a pulley system used by the builders of the castle. She could even remember them being used the day the throne room had been constructed.

But no time to dwell on that now, she had to keep moving. There had to be another passageway out of this room and into a more secure one. Preferably one further away from the crowded room below.

As Celestia shuffled away from the vent, she felt a tug. Looking back, she saw her left hind leg was ensnared by one of the ropes. She huffed through her nose. Just great.

Unfortunately, that wasn’t the biggest problem right now. Her bowels involuntarily pushed, and Celestia realized that when she’d been falling down the slide, she hadn’t been focused on holding the laxatives at bay.

Her bottom raised into the air instinctively, followed by her tail hiking up. Celestia bit down on her pacifier, shutting her eyes and whining out a pitiful plea. No no no no no no no!

But even as she thought that, her body was screaming yes at the chance to relieve itself from all the pressure that had been building. Without even needing Celestia herself to do the final push, it all came rushing out.

The hot mess that had been building up rushed out of her, hitting her diaper and causing it to start sagging almost immediately. Her diaper crinkled and bulged as it took in the huge mess. Celestia grunted and took several breaths as the mudslide just kept coming. She could feel the warm mush spreading all over her backside as it made room for more and more to come in.

She didn’t know how long she spent pooping herself, but it was definitely long enough to fill her diaper to its limit. It sagged, now stained brown, nearly all the way to the floor. As Celestia calmed down, breathing heavily, she lowered her pelvis.

The mess in her diaper squished as it pressed against the floor, shifting in the confines of it’s cushy prison. This jostled Celestia into a blush as her marehood began to burn.

Oh… Oh no… she whimpered softly into her pacifier, the desire to touch herself returning with a vengeance. To think that she wanted this so badly not even a half hour ago, and now it was the last thing she wanted to do.

She crinkled her nose at the stench of her mess, her marehood quivering with arousal.

Celestia tried to move, but each shift only made her hornier as her messy diaper rubbed against her. She bit down on her pacifier, struggling to think of what to do. Despite knowing that this was inevitable, she hadn’t really had the time to plan for it. Now, with her mind foggy from arousal, it didn’t look like she’d be able to think of anything to do about it besides… well… pleasuring herself.

That had been the goal all along, after all.

She shook her head. No, I can’t do that now! I’d be found out for sure. Luna is holding court right below me! All of Canterlot’s nobles are here!

And yet, the threat of such humiliation only seemed to spur her on. Her hoof drifted, bootie making contact with her diapered crotch. It pressed in slowly, the still warm mush squishing against her marehood.

Celestia moaned. She gave into the urges. She had to.

Her hoof rubbed against her diaper, slowly at first, but it quickly devolved as her pelvis desperately humped her hoof back.

Celestia rolled back and forth as she pushed her hoof into the padding, grunting and moaning as she suckled her pacifier. The floor creaked in protest, but was happily ignored. The ropes got tangled up with her as she flopped on her back and rubbed harder, faster. She didn’t realize how tightly they latched on. She didn’t care. The smell of her mess lingered, fueling her even more as she let loose. All the urges she’d been building up for who know’s how long were finally unbridled.

Suckling her pacifier, she giggled gleefuly in between her moans. This feeling was incredible. It was everything she remembered and more. Her marehood was so desperately close to release now.

“Eww, what’s that smell?”

Celestia’s ears flicked at the sound, but she didn’t stop rubbing. Her eyes darted over to the vent, and realized that the smell of her diaper was leaking down into the throne room.

“Good heavens, it’s putrid!”

Murmurings of agreement rose up. Celestia blushed heavily from embarrassment, speeding up once again.

She heard the crowd below shift in discomfort and issue complaints. Ponies sniffed, gagged, and began pushing to escape the stench. Eventually, she heard her sister yell. “Alright! Alright! We will have to end our meeting for today. Everypony you are dismissed.”

Celestia breathed a sigh of relief that she wouldn’t be discovered now. Her hoof dug into her filthy diaper, her marehood finally at it’s limit.

Her orgasm erupted out of her. It rippled through her body in waves, tingling pleasure following. It elicited the loudest moan she could muster. Celestia bit down on her pacifier as the euphoria took over. Her hoof slipped off the diaper, its job done. Celestia panted into her gag, her climax now passed its peak.

She lay there in the aftershock of the orgasm, listening to the nobles clamor out of the throne room.

Out of curiosity, she tried to return to the grate so she could see what was going on, but as she shifted she was met with firm resistance. Looking over her body, Celestia could see the ropes wrapped around her and grunted in surprise. She struggled, hoping to wiggle free. Her messy diaper squished, more gross than arousing now that she’d plateaued.

The ropes held her firmly, the floor whining in protest at her movements. Celestia tried kicking and squirming, hoping that she could get free. She was trapped enough as is with her current attire. She could not be stuck on top of that.

As she wrestled with the ropes, she heard murmurings. Turning her head, she heard Luna’s voice.

“Where did this smell even come from?” Luna asked. She was still in the throne room, but it certainly sounded like she was the only one, considering how much she liked talking to herself.

Celestia struggled harder. She could not have her sister discovering her in this state. The ropes held firm though.

The floor did not.

The stress of her rolling around was too much for it, and it cracked. Celestia’s eyes buldged as she felt her body jerk down slightly. Oh no. NO!

“Huh?” Luna had heard it.

Celestia scrambled. She had to get up and out before the floor--

CRASH!

The floor--or ceiling, technically--bulked under the strain. It burst open and Celestia fell through.

She bit her pacifier as her body fell. For several feet she was unable to do anything as gravity yanked her down. Then, the ropes surrounding her body began to tighten.

Somehow, as she fell, the ropes were pulled taut from their spots in the ceiling. They wrapped around her waist, jerking her to a stop before she hit the ground. Her hind legs ended up pinned together, and her diaper was almost encased by ropes all around it. Celestia bounced in mid-air, her poopy diaper pressed against her body.

As her fall stopped, Celestia found that the ropes had formed a crude, makeshift baby bouncer, suspending her in the air like one normally would. Now with the threat of injury gone, she started to breath a sigh of relief, but nearly choked on it. As the ropes slowly rotated her around, she became face to face with a bug-eyed Luna.

Her sister blinked a few times, looking about two seconds away from passing out from pure shock.

Celestia weakly smiled behind her pacifier, but gave a soft whimper too. Her face burned with shame and humiliation. She'd never been so embarrassed before in her entire life.

She was never, ever going to forget to lock her door again.