[ABDL, Diaper Use, Mental Regression, Mind Break, Soiling, Role Reversal]

Deep within the confines of the naval base was a secret room. A room that only a few select girls knew of. A room that was designed to originally cater to a specific destroyer, after she had been forced to wear diapers as a result of her condition. After her caretaker Illustrious started going a little mad with power in the most subtle of ways, the room's purpose was expanded upon. It was going to be a nursery for all the little girls who needed diapers so that they could be pampered and cared for all without any potential humiliating issues...

That's how the young Javelin had been joined by four other girls. Her fellow destroyers Cygnet, Crescent and Comet, a sisterly trio who had grown into quite the odd bunch as a result of their own mandatory diapers... and the young carrier Unicorn, who had been thoroughly traumatized into being a good little baby after what Cygnet and Illustrious had done to her.

While she would've sat back and just accepted her fate a while back, at this point the purple-haired onesie-clad destroyer had enough. She wasn't going to let the white-haired carrier just toy with them like they were babies. All five of them were adult enough that they could handle themselves. And unfortunately for their tormentor, her first victim knew of a secret that would make her lose all credibility as a caretaker. All she needed to do, was to spring her trap. The trap that she had prepared for several weeks now...

"Are you sure this is going to work, sis?" The green-haired Comet asked her blonde sister, nervously stepping from side to side as her diaper crinkled between her legs.

Crescent hushed her sibling as she carefully poured a little vial of something deep and brown into the teapot that she was brewing. A special substance that Javelin had specifically ordered from Akashi, for this specific occasion. It cost her a proverbial arm and a leg, but it was worth it if it meant that she could enact her revenge on the dubious adult.

While the two girls were busy brewing the pot that would ruin her for the upcoming future, the other two girls were busy getting ahold of their maternal caretaker. Unicorn tightly grabbing the white-dressed Carrier's hand as she carried her favorite unicorn plushie under her other arm, while the two of them were guided into the nursery by the light-blue haired Cygnet.

"What's the matter, Cygnet? You're not usually in a hurry. Did everybody mess themselves? You know I left a way to contact me in there if you really needed a change that badly..." Illustrious muttered a little confusedly, not quite understanding why she was being dragged along. Even though she did appreciate the way that her beloved little Unicorn held her hand. It was so cute seeing her cling to her like a dependent little baby. As she had been trained to be.

Cygnet merely smiled in return. "We wanted to reward you for taking such good care of us, Lusty!" The giggly baby smiled from ear to ear. She had been the one that had accepted her diapering and babying the most, especially since the carrier had helped her take revenge on her sisters. But that didn't mean that she wasn't about to betray her to the destroyer who had been the biggest victim out of all of them. If anything, the chance to make the carrier fall just like they had was so enticing that she could almost burst at the seams from anticipation...

Unicorn nodded softly in response to what Cygnet was saying. "Crescent and Comet are making tea, Illustrious... They're not that good, but they're trying their best..." She muttered softly, lightly suckling on the rubber tip of her plushie to keep herself calm. If she didn't keep calm, she'd just mess herself, and she didn't want that... At least, not yet...

Illustrious thought nothing of the fact that everything they told her was basically a ruse, taking their words at face value. "Well, that's certainly nice of them. I can remember when they tried to pull a silly prank on you, Cygnet. They turned out to be such good babies after their punishment though, so I'm glad they're ready to show that they've repented thoroughly." Her serene smile was earnest and honest. She didn't even show remorse over helping the light-blue-haired destroyer make diaper-dumping girls out of her sisters...

As their small talk continued, they reached the nursery. The same pastel-colored room that they had grown very familiar with over the last little while. The proverbial prison for all the little babies, as they weren't usually allowed to leave. Not because they weren't able to handle themselves, but because they knew that they'd just embarrass themselves if they walked around with a sagging diaper between their thighs.

Javelin sat at a table for six, sipping on a sippy cup as she stared towards her tormentor with a bored look in her eyes. She tried to make it seem as if she wasn't planning anything, by acting as natural as she usually did. Just sipping away at her milk-filled cup, the same that she had been sucking on for so many weeks now. Just looking at her made it seem as if nothing was out of the ordinary when it was the direct opposite.

"Tea's ready!" The two other C-Class girls cried out in unison as they ran over from the corner of the nursery, carrying a tray with a piping hot teapot and a couple of cups stacked atop on one another. They came to a quick but safe stop near the table, as the three recent arrivals took their seats. Each of the girls sitting at the table received a cup, and the tea was neatly poured straight in. Even the cups for the two girls that hadn't sat down yet were filled up.

As Comet took a seat, smiling like the ditz she was, Crescent turned to look at Illustrious with a nervous smile. "We... We tried our best, Illustrious. I hope you like it, we didn't really understand how teabags worked or anything..." She tried to be as honest as possible, while completely leaving out the detail about the laxatives that she had secretly poured into the pot...

"That's quite alright, little Crescent. You've tried your best, and that's what matters." The older carrier chuckled as she grabbed her teapot, gently blowing on the surface of her tea until she was sure that it was cool. She stuck out her pinky finger as she sipped just a little bit of it, making sure that it had indeed cooled before she slurped up a good mouthful. Despite the air of dignity that she tried to keep around her, she did have some childish aspects to her. Many more than most of the girls knew as they would soon find out.

Each of the other girls took their own sip at their own pace. Yet, only Javelin decided to drink just as much as her tormentor. In fact, she downed the entire cup's worth, wanting to make sure that the second step of her plan would go as smoothly as possible, as her eyes were squarely focused on the woman that had forced her into diapers...

As the girls chatted amongst themselves and Illustrious felt content to just watch with a gleeful and pleased smile on her face, she suddenly felt something greatly concerning. Something that shouldn't be happening, especially not to somebody like her. She almost dropped her teacup as she felt the spikes of pain pang through her body, causing just a little of the tea to splash onto the cover underneath...

"Lusty? Are you okay?" Cygnet asked, taking immediate note of the strange behavior that she displayed.

The hat-wearing carrier smiled as she carefully got up onto her feet. "Oh, I've just got a case of the jitters, dear. Nothing to worry about, I'm sure." She tried to brush the pain she felt in her stomach off as she staggered backward, taking long and deliberate steps with her shaking legs to avoid upsetting her belly even further. "W-Well, the tea was delicious, but I think I'm going to have to go..." Her voice got just a little quiet as she tried to walk towards the exit to the nursery.

Only to stop up, feeling her stomach audibly growling. It felt as if something was kicking up a storm inside of her, and it wanted out of its tiny prison. No matter what way it had to leave her body, it wanted to get free... Which in turn, meant that she could feel a pressure building down below in her bottom. A pressure that she normally had better control over...

And in that moment of weakness, her first baby made her move. Before she realized that the onesie-wearing little girl had moved, she felt a tug on the bottom of her dress. "Illustrious. Are you feeling alright?" The purple-haired Javelin asked, hiding a smirk as she forced the white-haired woman to look at her.

"I-I'm just fine, Javelin. J-Just give me a moment, I must be fighting a cold from one of my previous sorties..." She tried to excuse herself again, but this time the excuse wouldn't work. Especially as she noticed where the destroyer's other hand was.

Her eyes immediately widened as she put two and two together. But it was far too late, as she saw the younger girl yanking up her dress to reveal the secret hidden beneath. A secret that she had only revealed to her, a secret that she thought she would keep.

"Hey, everyone! Look at Illustrious, the biggest baby!" Javelin proud cried out as she gestured to the massive diaper that had been hidden underneath their caretaker's dress. It was a wonder that they hadn't realized it earlier, given how it naturally enhanced her hips and made her posterior look even more attractive than it really was...

Illustrious could feel all of the girls' stares focusing on her, as she felt a massive chill run down her back. "J-Javelin..." She muttered, audibly deflating as she tried to muster up a defense.

A defense that would never come, as the surface of her padding let out a loud crinkle as it intercepted a burst of gas being forced out of her hole. Thanks to the young destroyer's plan, she was left completely vulnerable to her impending mess. And she could do absolutely nothing to stop it. She could feel her eyes welling up with tears as the pressure in her butt grew that much tighter and painful at the same time...

Only to feel a comforting pat on the shoulder, courtesy of the girl that was in the middle of bullying and breaking her spirits. Javelin wore such a gleeful, yet supportive smile. "It's alright, Illustrious. You're among your peers. You're a baby, just like the rest of us. You don't have to worry about anything..."

Those were the kinds of words that the older woman had used to break Unicorn, now thrown right back at her. She couldn't believe it. Everything she had done to those girls was crashing down on her, being used against her to humiliate her more and more.

She could even hear the other destroyers and the younger carrier grunting and groaning a little, the effects of their tea kicking in. As the noises grew louder and more frequent, she saw something she never would've anticipated.

The four younger girls bolting out of their seats, heading straight for her...

Illustrious cried out in surprise as the foursome crashed into her, pinning each of her limbs to the ground as the grumbling from all of their six tummies intensified. "I-It worked, Javelin! N-Now what?" Crescent cried out, clutching her stomach as she felt the pains reverberate through her body...

"Now? We all mess ourselves. I told her, we're all babies. So we should all use our diapers like good babies, isn't that right?" The purple-haired destroyer smirked as she shifted her position slightly, letting the drooping sight of her onesie-clad diaper slip into the baby-pinned woman's line of sight.

The white-haired woman blinked several times as she started to stutter, her mind practically shutting down right then and there. Not only was she going to be in close vicinity to four girls shitting themselves, but she knew exactly where that soft butt was going to end up. The exact same tactic that she had advocated that Cygnet should use on her sisters...

"Time's up, Illustrious. Time to embrace what you really are." Javelin bit into her lower lip as she started squatting down, her padded butt hovering slightly above the older woman's face as she could feel her colon spreading.

The four girls that were holding down the carrier's limbs each grunted in unison, gasping as the sound of their underwear expanding filled the ears of their caretaker. Each of them just pushing everything out, causing a four-fold assault on her nose as the smell quickly converged on her poor little head.

"N-No, S-Stop! Please!" The tears were streaming down her face, but nobody was going to listen to her. Least of all the girl that she had ruined in the first place.

The older woman's cries and her protests were muffled as Javelin dropped her knees, letting her sit straight down on the former dominant's face as she pushed with all of her might. As she pushed and pushed, tears slowly started streaming down her face, the agony of pushing that hard taking a toll on her body. She was trying to force herself to make the biggest mess that she had ever made...

She could feel her body practically writhing as it forced the massive piece of poo out of her ass, spreading it to the point where she could fit a football in there if it were to stay that open. Not that it mattered, as the heft of the mess quickly fell down on the woman that had once used them...

Illustrious was attacked in every possible fashion. Her eyes were looking straight into a mess that was threatening to rip apart the cute onesie that kept it bound. Her arms and legs were kept held down by a set of babies that were unintentionally making her fingers and toes sink into the surface of their padding, causing the muddy texture of their wet messes to rub off and make her feel even more displeased. Her ears were being bombarded by the sound of groaning and straining tummies, as well as the sound of crinkling diapers rustling about with all of that messy stuff stored within. The only sense that hadn't been assaulted was her taste, and she was lucky her lips weren't directly puckered up against Javelin's heavy diaper.

With all of that, and the pain that ran through her belly. The pain that made it obvious that she was going to be next. The humiliation that was still filling her mind, and the morbidly supportive words that had been thrown back at her by the destroyer that she had helped into diapers... How could she possibly keep herself thinking straight?

So she snapped. She let out a ditzy giggle as the light in her eyes practically broke right then and there, leaving only a loud tuba-like sound to echo from her butt. With her defenses completely degraded, evident by the slight trail of drool running down her chin, she could let out a fart so loud that it wasn't even close to being deafened by the plush padding...

Then came the mess. Unlike the rest of the babies, Illustrious was the biggest. So her mess had to be equally big. She grunted and groaned like the rest of them as she pushed and pushed. The poop that had built up inside of her innards was rapidly flooding its way into the back of her diaper, making it sag downward as it lost much of its pristine round shape, turning into a lumpy display of her lost maturity. But that was only the start, as she just kept on pushing without even stopping to think if she was overdoing it.

What had been solid lumps of brown ropes was quickly turning into a liquid slurry as the brown water that flowed out of her ass made her diaper just as soggy as it was dirty. It kept on expanding as it was filled up, until that last bit of murky water ran out, leaving her with a set of infantile underwear that reached past her knees. In the same time it took all of the girls to make messes that barely bloated their diapers, she had made a mess that large... It was actually impressive, and it really cemented her role as the biggest baby amongst them all...

"I know I said she was the biggest baby, but..." Javelin muttered in a moment of lucidity as she lifted herself off the broken carrier, looking down at her with a slight bit of pity. "I didn't think she'd be able to poop that much." She added, taking notice of the fact that the older carrier had outright passed out from shitting herself that much.

Comet and Crescent nervously giggled as they both got off their parts of Illustrious, yawning as they waddled their way off to take a nap. Their part of the deal was over and done with, they just wanted to rest at this point.

"Of course she can. She's the one that took care of all of us. You didn't think she had it in her?" Cygnet giggled as she rubbed a hand against that massively overfilled diaper, shivering a little all over in delight. "Aaah... I can't wait to see how she'll feel when she wakes up, realizing that she's the best little baby anybody could ever want..." She chimed as she just decided to lay down at the hyper-messy baby's side, snuggling up to her as she rubbed her padded butt for a bit of comfort.

Unicorn just stared, feeling a tiny bit of remorse. Just a little. Until the purple-haired destroyer hefted her up into her arms. "Javelin..? What's going to happen now..?" She asked, looking into the onesie-clad messy baby's eyes...

She didn't have an answer, as she just hugged the younger carrier tightly. "It'll be fine. Let's just sleep on it." She muttered, yawning a little. Even if the results of all of this was much different from what they had expected, it was still a success.

The lavender-haired carrier nodded as she yawned in turn, drifting off to sleep in her leader's arms. She made no effort to struggle as she was carried over to a soft space on the floor, where she could be cuddled by the older destroyer like she was an oversized plushie.

Javelin smiled just a little as she looked over to the carrier who had started all of this, before closing her eyes. Things had taken a strange turn, but she had gotten her revenge. Now, the caretaker had been made the baby she always was at heart. She could take solace in that, and finally, have a good night's sleep.

A soft snore left her lips, the first in weeks, as she drifted off to sleep with the rest of the babies...