Royal Oopsie

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...