[ABDL, Facesitting, Pantypooping]

Another day at the Naval Base passed on by. Nothing seemingly happening, the boredom slowly grinding away at the girls stationed there who had not a single thing to do besides exercises and chores...

Well, all except for a select few.

"Uughhh... What's with this annoying headache..." Crescent, the blonde C-Class Destroyer, muttered as she slowly opened her eyes. She had been asleep for some time, only now realizing that she wasn't in her room. Not a second later did she realize that Comet was right beside her, still out cold and snoozing like a child wrapped in a warm blanket...

The young girl pouted as she tried to jab her sister-ship in the side, only to notice that her arms were tied to her torso. "Oh, this is just... fantastic..." Her displeasure dripped from her words as she cleared her throat. "Comet! Wake up! No napping!"

Shouts as loud as the ones that Crescent could make were more than enough to break the 'spell' of sleep on the younger-minded of the two girls. "Whhhuuuh? Where's the Cola Commander wanted to me to have?" The green-haired girl blinked and shook her head back and forth to try and shake off lingering sleep... "Oh, hey Crescent. Where are we?"

"How should I know? I just woke up, and I had to deal with your sleepy butt being so loud that I could hardly sleep myself!" The lies that were running out of the blonde girl's mouth were easy to pick apart, but the less-than-gifted Destroyer couldn't tell them from the truth, so she merely sheepishly blushed and chuckled as if it wasn't a big deal. "Honestly, expecting me to know..."

Despite the little back and forth, both girls were quite confused by the decor of the room they found themselves in. Pastel colors, light hues, the kind of stuff that wouldn't be out of place in some sort of daycare. Definitely not something one would normally find on a naval base...

Neither was a certain purple-haired destroyer lounging near a tiny table, sipping from a tiny cup like an infant. She didn't even pay the two girls any mind as she seemed more than content enough to just... waste the day away, sitting in her babyish onesie with anchors all over it.

"...Javelin? Is that you? What the heck happened to you, I thought you were hospitalized after that incident that... that..." Crescent tried to bring up the destroyer's condition, only to pause because of her own actions. She could remember the utter sadness on her older sister's face after Comet and hers last prank, which forced her to...

"Crescent? Why's she diapered?" The green-haired destroyer accurately noticed the bulge around Javelin's waist and butt, wanting to scratch her chin in confusion... only to finally notice that she didn't have proper control over her arms as a result of having them tied behind her back. "Hey! What the... who tied me up!?"

While the smaller of the two was busy trying to comprehend who would dare put her in such an awkward armless situation, the bigger kept staring towards Javelin, a somber look in her own eyes as she tried to mentally justify what had happened to Cygnet. Surely, it wasn't her fault... was it?

The purple-haired destroyer finally deigned the two worth her time as she stared towards them, before nodding her head to the right, making the blonde turn her head a little more to the left to see what she might've been trying to draw her attention towards.

Her eyes immediately widened in some form of surprise and fear. "Illustrious? Not you too, what's going on here!?" Crescent shouted as she tried to wrestle her arms free from their binds, only for the white-haired Carrier to step closer and slowly put a finger on her grumbling lips.

"Sssh. It's okay. I'm not going to do anything to you." Her words sounded forebodingly reassuring... and for good reason, as they were followed up by some that sent a small shiver down both Destroyers' spine.

"She will though."

Comet joined her sister in looking forward as Illustrious stepped aside to reveal their eldest sister, Cygnet... who was less than pleased, given not only the way she crossed her arms below her chest but also the thick diaper crinkling between her thighs. Not to mention the adorable mittens and boots that she wore, adding to the infantile air that the grumpy little girl had.

An air that both of her sisters ignored as they merely stared at her fearfully. "Well then, what do we have here. A pair of trouble makers that might just try to excuse away their actions, to avoid retribution?" The white-haired Destroyer said as she stepped closer, the sound of her thighs squishing against her diaper causing more crinkles to air out, which still didn't diminish the fear that she instilled in both girls' hearts.

"W-Wait, Cygnet, we didn't mean to make you poop your panties, honestly! We really didn't!"

"Y-Yeah! It was just a prank, we didn't know it'd do something like that at all! We should've tested it on ourselves before we even tried something like that!"

Both Crescent and Comet seemed distraught and ready to excuse away their actions, even as their sister reached out towards their cheeks, seemingly to cause them some sort of pain. They braced themselves and closed their eyes...

Only to receive a few rubs by her gentle hands, prompting them to open their eyes a little once again, catching a glimpse of her seemingly forgiving smile. "What, did you expect me to be mean? Come on you two, you've made it clear that you didn't know it could happen. I've learned from my time in here with Illustrious, the best way to recovery is to forgive. And I want to forgive both of you for causing me to lose control over my bowels. It was just a prank that went too far, after all."

"...R-Really?" Both of her sisters replied in unison, tiny tears slowly running down their cheeks in surprise. Was everything going to be okay? Were they not in trouble at all?

The smile on Cygnet's face certainly seemed to indicate as such, while she motioned for the taller white-haired woman to hand her a pair of bottles. "Mmmmmhm. In fact, Illustrious wanted to help me out a little. Here. I want you both to drink from these. It's her very own milk, guaranteed to make you both feel nice and warm inside. With this, we'll have made up, and everything will be right back to normal."

Crescent was naturally skeptical. After all, she had pulled the same sort of routine to trick the older girl into eating the meal that had ruined her bowels... and here she was, trying to feed them both something that seemed nice and tasty, yet could be just as laced with laxatives as hers was. The blonde was smarter than that...

Comet, on the other hand, wasn't. She eagerly opened up her mouth to allow for that rubber nipple to slip on in, and started suckling from the fake teat seconds later. Milk quickly left the bottle and ran down her throat as her cheeks turned a nice and warm red, especially as she leaned her head backward just a tiny amount to allow for more of the rich liquid to sink down quicker.

A single drop of sweat ran down her middle sister's brow as the blonde shook her head disappointedly. "She never learns, does she..." Crescent muttered before looking ahead at the oldest sister, who patiently waited for her to open her mouth to accept the bottle willingly. "...You're just going to keep looking at me like that, guilting me into drinking, aren't you?"

Cygnet nodded, prompting the blonde to concede defeat as she parted her lips. "This better not be bad milk, I don't want to end up a poopybutt too..." She said, acknowledging the dangers before slowly suckling on the nipple that entered her mouth. Her eyes lit up a second later as she started appreciating the wonderful taste...

Both girls slowly started zoning out as they gently suckled away, losing themselves to the warmth of sipping milk like a pair of overgrown babies. To be fair, so was their eldest sister at this point, so what was the harm in having a little drink that could potentially harm their internals? Nothing, that's what.

"They bought it." Illustrious whispered to her white-haired baby, who turned towards her with that smile twisting into a grin.

"Bought it? They wanted it. To atone for their misdeed." Cygnet replied, firm in her response as she turned back towards the two babies-to-be as she heard a characteristic sound resonating from their bellies...

'I knew it, I knew it was going to be bad!' Crescent thought as she started struggling against her binds, even spitting out the bottle which harmlessly bounced against the padded floor. "What makes it right for you to make us messy when we've apologized and tried to make it clear that we didn't know it was going to turn that bad?!" The blonde Destroyer shouted, incensed by the sheer audacity the older girl had displayed...

Comet, on the other hand, was having a harder time trying to deal with the pains her stomach was going through. She wanted to stop suckling so the pain would go away, but at the same time, that very milk was soothing it with its rich taste. Maybe she should spit it out, but then... That endless cycle of indecisiveness continued as she slowly just laid down. She just wanted the pain to go away.

Cygnet cheerfully walked towards her green-haired sister, pinching her cheek as she shook it back and forth. "Oh, my sweet sisters. What goes around comes around, doesn't it? That's another thing Mama Illustrious taught me. To hold a grudge, and make sure that it was properly carried out. You'll both end up with just as messy butts as I did that day... and you'll know the pain of having to waddle around with one of these huge diapers around your waists, to protect the floor and yourself from dirtying everything up!"

"That doesn't mean you can just break your sisters like they were toys, Cygnet! We're people just like you, not... not babies that don't know any better!" To say that the blonde girl was furious would be an understatement, but that fury was soon replaced with a sense of dread as she watched her sister pull Comet's bottle out of her mouth, a little trail of drool running down the latter's mouth as the former took a seat atop of her face.

"Whuh... Why's it dark again...? Where's my milky..." The green-haired girl muttered, only to hear the sound of a faint sort of percussion coming from the older girl's rear. "Is that... a trumpet? No, wait, ew that stinks!"

Cygnet grinned as she started to push, push and push. It didn't matter that she wasn't ready to poop yet, because her body would do the trick. It had gotten a sick sort of humor over this last little while, and messing atop of somebody was exactly what her bowels would do...

Crescent was forced to watch on as she saw that white padding slowly expand outward, gradually turning a shade of brown as the contents of the diaper started to fill out. The padding crackled as the brassy 'Frrrrt' and 'Prfffft' sounds slipped out and around the turd that tumbled out of the hole, which just added to the awful sensations that both of her sisters were experiencing in equal amounts. The empty space between the plush seat and the older girl's bottom grew tinier and tinier as it was replaced by thick snakes of shit, adding another layer between the poor girl underneath's face and the depraved dominant above.

While the oldest sister continued to push, her cheeks gradually grew redder and redder. It felt so good to just let it all come out, so much so that she could hardly contain herself as she reached down towards both her crotch and her ass. One hand was used to shove the mess that was building in the back of her diaper forward, so she could use the other hand to squish it up against her defenseless crotch. Whatever had happened to her, resulted in a pervert that actively enjoyed filling her diaper...

As the stink of the mess, the weight of it and the icky feeling of being sat on slowly started mixing together, all of it causing damage to the poor green-haired Destroyer. It all started adding up, and as a result, the pains in her stomach vanished... which just led to something much worse.

The young Destroyer's muffled grunts were muted further by the mess on top of her, but they still heralded the slurry that emptied out into her underwear. She couldn't do anything to stop it, it just kept ongoing. Inch after inch, more of that brown disgusting sop filled out her undies and slowly turned that precious fabric just as brown as the mess it tried to contain... Thankfully, it didn't leak.

It didn't stop the poor girl from pissing herself moments later, showing that the laxatives in the milk affected more than just her bowels. "Uuuu... Cygnet... So mean..." Comet muttered as tears slowly ran down her cheeks, another saddening effect of what the nutritious liquid had done to her. The sight of her younger sister not only being forced to use her panties as a potty but also being driven to tears was too much for Crescent. Her eldest was truly too far gone... 

"Cygnet... you..." She mumbled as she just stared towards the white-haired girl with a small amount of fear in her eyes. What was going to happen to her now? Comet had been forced to release the contents of her bowels, rather impressively so if she had to use one word for it, but now it was seemingly her turn... and surely her eldest sister didn't have anything left inside of her tummy that she could use to practically torture the younger blonde with. Right?

The white-haired young girl licked her lips devilishly as she turned towards Illustrious. "I did good, right Mama? Made another baby for you, right?" She seemed to seek the older woman's approval, who responded by giving her a simple thumbs-up before pointing her in her middle sister's direction. "Oh, yes, we still have one more to go. The one that was so mean..."

The Blonde Destroyer froze, trying desperately to shuffle away from the older girl, but it was too late. She was still bound, and getting away was an impossible feat. She found her head being grabbed from behind by the white-haired elder, who giggled as she slowly shoved that pretty little face forward straight towards the messy mound in the back of her diaper.

"No, nononono! Stop! Please, Cygnet! STO-" Before the poor girl could protest in a futile fashion for much longer, her face met the seat of the padding... and immediately, that disgustingly warm and stinking feeling overwhelmed her. There was no escape, her face was being forced against that bulge. Her face, her nose, her eyes, all of it soaked in that mound of mulch.

Cygnet was more than happy to play a little more with herself as one of her hands went down to the front of her diaper once more, playing with the brown bulge in the front as she wiped the poor middle sister's face around the surface of her seat. The manure built up in the back was pushed around and about by the way she roughly handled her sister's head, making it even harder for the latter to focus on keeping her bowels in check...

Until the pain in her stomach left as well. She could feel it coming. Her bowels were breaking. She couldn't stop it. She... didn't want to stop it. There was not a point to do so, why would she even try when the inevitable was about to occur?

Crescent closed her eyes as her ass parted to allow for a slippery soiling snake slipped out and onto the surface of her panties, staining it brown in moments. Once the flow had started, it didn't let up. Inches turned into what felt like feet. Out it all went, filling up the back of her underwear as fast as possible.

The front wasn't left untouched either. By lowering her guard and accepting defeat, the front floodgates had been opened as well. A warm stream of dirty yellow pee ran down her thigh and soaked into the front of her striped panties, leaving one half stained with that near-golden stream of filth, while the other half was completely caked with brown.

Even as Cygnet thought that she was finished, letting her head slowly fall onto the softened floor, she continued to let loose, the pee slowly running out the side of her undies while the back continued to fill with more and more waste. She had been... ruined. Just like she had ruined her sister. Ironic, perhaps. Or karma running its course.

While the older white-haired girl giggled and ran over to her older caretaker, the purple-haired Destroyer slowly approached the two girls laying in their messes, a supportive and somber look on her face.

"Are you going to mock me too, Javelin..?" Crescent whimpered as a little tear ran down her ear, and her broken-in bottom released a brief wet fart in-between the ropes that continued to pour on out...

The onesie-wearing girl shook her head and slowly smiled. "No. I've got something you'll want to hear instead. Something that can make us all happy in the end."

Crescent's eyes regained their light as she listened carefully, and a plan slowly brewed between the two unfortunate Destroyers. A plan that would indeed end up with every single baby happy, even if they were still stuck with a faulty set of bowels.

Illustrious would pay for what she had done to them.