[ABDL, Mental Regression, Brainwashing, Tooth Loss]

"What in the world? Robin, are you sure this is supposed to be where they're kept?"

"That's what the bounty said. Vivi was supposed to be taken to this Island."

"Yeah, okay, but why in the world are there so many babies walking around?!"

Two of the Straw Hat Pirates, Nami and Nico Robin, were currently walking through a crowded town. And nobody was really paying attention to them, despite their obvious infamy. Even when Nami raised her voice in shock, nobody paid any mind. If anything, they ignored them even harder than before.

To make ends meet, the two had a tendency to wander off and collect a few bounties. Nothing too terribly complicated, and they were able to use a middleman to collect the money that they were owed. This time was a bit different however. This time, they weren't hunting down another pirate that needed to be tossed in the slammer. No, this time they were helping out a friend.

Their friend and Princess of Arabasta Kingdom, Nefertari Vivi, had vanished from her home. And it was up to them to track her down based on the information they had been able to gather. And thus, they found themselves on a rather strange island. An island that was characterized by two things. The first was the appearance of the island itself, as the ground, the buildings, the general appearance of the island was like that of a giant nursery. While both had seen this kind of absurdity before, due to the experiments that had happened on Punk Hazard, this was far more distressing. Because it seemed like the island itself had been transformed, almost as if a Devil Fruit user had wreaked havoc across the island.

The second thing that characterized the island was something that Nami had already complained about. Every single person they had met on this island wore a diaper. Every single one of them. Not another piece of clothing draped their bodies, and they were especially happy whenever they suckled on their oversized pacifiers. All of this seemed so natural to them, despite what Nami and Robin thought.

"The faster we get off this island, the better." Nami muttered. It was a good thing that she had done everything to avoid this island in the past. She had thought the name 'Baby Island' sounded strange, but to find that it was not only incredibly descriptive but also a minor part of an entire Kingdom... Now that, that was too much.

Robin just chuckled a little. "Maybe we can get you changed before we leave. If you're going to be so cranky." Always one to tease. Even in a situation as absurd as this. "Maybe they've got some that smell like tangerines, if you want to be extra comfortable on the rest of our journey."

"I can't believe you'd joke about something like this." Nami muttered as she rolled her eyes. All while they continued to stroll through the town, gradually approaching the blocky tower in the center of the island. It felt like a castle, despite the fact that it was very clearly made of letter-covered blocks. So hopefully they'd find Vivi in there... And hopefully, she wouldn't be as babyish as everyone else around them.

While Nami was doing her best to ignore the babies around them, Robin was keeping a much more watchful eye on them. She wasn't about to let them catch either of them off guard. Knowing the type of people they had run across during their travels across the Grand Line, it wasn't impossible to expect that these babies could turn hostile on a dime. Which meant that they had to be extra caref...ul...

Robin paused for a moment as she noticed a strangely familiar set of girls among the crowd of babies. A blonde wearing a pair of very sharp looking glasses... And yet, she was suckling from an oversized baby bottle, one that was nearly the same size as herself. Not only that, but the bottle was covered in soap. Why did she look so familiar..?

"Robin! You can't just lag behind!" Nami cried out from further ahead, waving her friend towards her. All while doing her best not to look at a girl playing with a toy sword. She seemed familiar, and yet Nami wanted none of it. She just wanted to be over and done with all of this. The faster she could get away from this Baby Kingdom, the better.

As she caught up to Nami, Robin swore that more and more of these babies seemed familiar. But she couldn't put her finger on why. So she decided that the best course of action was to probably just shelve that thought and worry about it later. They were here for Vivi and Vivi alone, so any of the other babies were a lot less important.

Once they finally reached the castle on top of the extra bouncy hill that served as the center of Baby Island, they felt the ground getting harder and harder to stand on. If they weren't careful, they'd go rolling down the hill in a matter of moments. But they had been careful enough. So hopefully, as they opened the door that led into the castle, they would be able to find Vivi fast... And then take advantage of the loose footing so they could high-tail it out of there.

"Pwaymates!"

To their relief, they did find Vivi rather quickly. In fact, she was sitting on a throne... Or rather, a very fancy highchair. And right beside her sat another girl of similar rank. Rebecca, Dressarosa's former Princess. How had she ended up here? And more importantly, who would be collecting Princesses like them?

Unfortunately, both of them looked like they had seen better days. Namely due to their current lack of teeth, and absolutely innocently babyish look in their eyes. That, and the massive diapers that kept them stuck in their 'thrones', plus all the gunk that had been messily sprayed across their bodies. They were super messy eaters, though the lack of teeth probably helped in that regard...

Nami gripped her clima-tact, and Robin assumed her offensive stance, letting several arms bloom around her. It didn't take a genius to assume that they were in danger after seeing those two Princesses reduced to a pair of messy babies. "As soon as you see somebody, Robin, you let them have it! I'll bring down the thunder!"

"I can always count on you to cover my back, Nami." Robin smiled, though she could feel a wave of sluggishness start to overwhelm her as she tried to use her power. It was getting harder and harder to keep her eyes open. What was... what was going on..?

Thankfully, her plight didn't go unnoticed. Nami noticed what was going on, and quickly whipped around. "Robin, you're wobbling! What's going on!?" She shouted, ready to defend her in case something would try and do something to the two of them.

"My my. What adorable girls you both are."

Both Robin and Nami felt a shiver run down their spines, as they both felt a warm hand plant itself on their shoulders. And immediately, they felt a strong wave of drowsiness start to pour through them. Such a strong wave that made it harder and harder to keep standing, much less awake...

"Mwamwa!"

Both of them could hear the two Princess cry out in delight, and yet they couldn't see who they called out towards. Not before their eyes shut closed, as they just couldn't keep awake...

The last thing they heard before they fully fell asleep, was a warm yet haunting giggle echoing through their ears...

---

"Mmmm... Nap... Good..."

Nami yawned as she slowly but surely woke up. She felt really, really refreshed. And yet she also kinda felt really tired at the same time. How long had she been sleeping for? She usually only got like this when she had slept far too long. But how long had she actually slept for... Wait...

The orange-haired girl's eyes snapped open as she remembered what had happened. That's right. Robin and her had gone to Baby Island to try and rescue Vivi. Both for the cash reward, and to save a good friend. And now she was suddenly asleep?! What in the world was going on!?

Her confusion only grew as she noticed that she was currently laying down in an extra soft crib. And right beside her lay Robin, who was still fast asleep. Which was both comforting, and distressing. Comforting, because at least she hadn't lost track of her crewmate and close friend. Distressing, for the exact same reason the sound of crinkling between her thighs made her feel uncomfortable.

Nami and Robin were both wearing diapers. Diapers that were completely decked out in hearts. Diapers that were so thick that there was no way that either of them were going to walk any time soon. Just having them wrapped around her was too much, as she tried to reach down to grab it and tear it off.

And yet she couldn't. She tried her best, but there was just nothing she could do. It's like her fingers just slid off the diaper when she tried to get a grip. "C'mon... C'mon! I don't want to wear a diapy..!" The navigator cried out, desperation settling in further and further.

Despite how much she tried, it was hopeless. And eventually, she just gave up. She felt dejected after failing to remove a simple garment. Who in the world had put these things on them? It had to have been the same person who turned Vivi and Rebecca into a pair of stupid toothless babies...

"Mmmm... Diapy..." Robin muttered idly, fast asleep. Drooling onto the padded floor, completely ignoring Nami throwing a bit of a tantrum, and sleeping right through her loud cries. She was nice and comfy, enjoying the feeling of the diaper between her thighs...

At least that was the intention. Right before Nami rudely pushed her hand up against the crotch of her diaper, causing a sharp sensation to pierce through Robin. A moan left her lips as her eyes fluttered open, and the spot that Nami had pushed started getting a little wet. "Nnnn... What's going on..?" She muttered, a deep haze filling her mind. Though even with that, she could tell that she was left with an embarrassing garment between her thighs, prompting her to instinctively close her legs. "Ah... I see now..."

"You were muttering about how much you liked your diaper in your dream. I had to wake you up, because it seemed like you were falling in love with them while you slept." Nami explained, all while glaring down at her diaper. "This thing... Can you get it off me?" She asked, just to see if the curse of being unable to grasp the waistband was a thing that prohibited her, or it was something that affected Robin as well.

Robin certainly tried. But her drowsiness and the haze in her mind that made it hard to really focus on anything around her made it rather hard. And in the end, she only pawed at it for a few moments before shaking her head. "Sorry, Nami." She admitted defeat a little too quickly, but it was clear that she wasn't going to be any help.

"Alright... Then we're just going to have to get out of here. With these stupid things on." Nami admitted defeat as well, before looking at the bars of the crib. They were adults, so they could climb over... Right? That was what she thought, at least. Right before she noticed how... tall... they were...

Were they really that tall? No, not at all. And yet something about looking up at them while she was stuck on the floor of the crib filled her heart with a pang of worry. Maybe she should just sit there and wait a little. Mommy would be here soon... M-Mommy?!

"Good morning, sleepy babies!"

Both Nami and Robin turned their heads towards the source of the maternal voice echoing around them, and both felt their cheeks flushing bright red. Because the source was a pale woman that oozed maternity. Whether it was her very clingy red dress, or the massive boobies that were hanging from her chest, or the hat that served to really highlight her most maternal expressions... And most importantly, the fact that she was absolutely towering over both of them. Was she a Giant..!?

"We're not babies!" Nami cried out as she struggled to get up, though she got nowhere. Her legs just didn't want to stand properly. She could put her feet down on the ground, but maneuvering her legs in just the right way wasn't going to happen. So instead she pouted and crossed her arms as she glared up at the pale woman...

Robin wanted to resist as well. And yet there was something about Mommy that made it hard to do so. The haze that was blanketing her mind was... Ah... Mommy smelled really nice... Maybe she should just sit there... Mommy'd take care of both of them, she was sure of it...

The oversized Mommy chuckled as she noticed how differently the two reacted to her. "It seems that one of you has been rather naughty. Silly girl, eating a Devil Fruit and heading straight to Mommy's Baby Island. It's a good thing this place makes it easier to baby girls like you, so I won't have to deal with two bratty little babies." She chimed, reaching over the bars of the crib to pet Robin on the head despite how naughty she had been.

Robin could only giggle as she felt Mommy's hand on her head. It felt really nice to be petted. So much so that she leaned into it, basically ignoring Nami as her eyes dimmed bit by bit. It felt really nice to be loved... Especially since her childhood had been so difficult. Ah... Mommy was going to help her...

"What did you do to her?! What did you do to Vivi and Rebecca?!" Nami cried out, as she tried to get up. But all that she could do was barely force her way onto her feet, before clumsily landing right back on her big crinkly butt. Which just prompted Mommy to giggle at her again. "It's not funny..!"

The big Mommy just kept on giggling at the bratty baby's outcry. "Oh, but it's adorable. And that's even better." She chimed, as she carefully picked up Robin and let her rest in her arms. Rocking her back and forth, bit by bit. All while keeping her eyes on Nami. "I didn't do much. Just a bit of magic to make girls like you understand that you're still so young, and you still need Mommy's help. Nothing more."

"M-Magic?" Nami muttered, blinking rapidly as she watched Robin snuggle up to Mommy's boobies. They were so big and soft that she almost wanted to.. N-No, she shouldn't. She should focus on fighting back against Mommy. "What do you mean, magic?! Magic doesn't exist!" She cried out, very intent on putting up a fight despite how difficult it was to stand or even hold up her arms at this point.

Mommy giggled, before gently brushing her hair and bowing down a little. "Let me properly introduce myself, little Baby. My name is Asphodel, and I've come to this world to collect all you adorable babies. You've seen the ones wandering the island, haven't you? They were like you. Then they felt Mommy's love, and they never thought about leaving ever again. Never worrying about anything except their next meal and their next change... Just like little Robin here. Isn't that right, Robin?"

"Mommy... Booby..." Robin muttered, as she poked away at the much bigger Mommy's breast. That breast was nearly as big as she was, at least that's what it felt like when she was this close to it. And it was also super warm and super comforting. There was probably a lot of nice milk inside there too. She wanted... She wanted a taaaaste...

"Robin! Don't do it!" Nami tried to cry out to her, hoping that she could stop her from sliding further into babyhood. But as Mommy started to unbutton the parts of her dress that covered up her breasts, there was nothing she could really do. Especially once those boobies were let out, because the way they bounced and sloshed around was... really mesmerizing...

Nami couldn't move a single step. Watching those leaky, milky boobies slowly sway. All while Robin bunched herself up against one, and latched onto the big nipple that was almost as large as her fist. It was so big, and she... she was really, really thirsty.

So she couldn't stop herself from suckling on the nipple. She couldn't stop herself from having just a little drink. So she suckled and suckled. Trying to get milk out of it. Trying to bite down a little, though not realizing that she couldn't really use her teeth. So instead she just used her lips and her tongue.

And she was rewarded. She could feel the nice warm stream of milk pour down her throat. And she trembled so happily. Because it felt nice to drink Mommy's milk. It was super nice. Suuuper tasty. And every time she swallowed a little more, she felt Mommy rocking her back and forth...

Of course, she hadn't noticed any bad effects. Why would a baby like her notice that bad things were happening, when they really weren't that bad to a baby? That's why she didn't pay attention to her teeth slowly vanishing, leaving her with gums and nothing more. Which was perfect, because she wasn't going to be doing anything with that mouth besides making simple gasps and simple words, and suckling out more and more of Mommy's milk.

Asphodel smiled as she watched Robin drink and drink more and more of her milk. All while gazing down towards Nami with a smile. "You want some too, don't you? Don't worry. It won't hurt you. Mommy would never hurt one of her itty bitty babies. You'll love being a baby, much more than you think you will." She said, using that sweet motherly tone to try and convince the orange-haired girl that everything would be alright.

Nami would never trust somebody like her. And yet seeing her boobies was making it harder to not trust her. So as Mommy reached out after telling her that everything would be okay, she didn't really try and stop her. Nor did she stop her as she plucked her off the ground and lifted her into her arms, pushing her up against the big nipple...

As she stared straight into Mommy's milky nipple, she could feel her teeth tingling... And she could feel something trembling down below. But at the same time, her tummy was telling her that she should drink. And who was she to deny her tummy? If her tummy was telling her that she should drink, then it was probably right. Her tummy was going to throw a big fit if she didn't listen to it.

So despite the navigator's natural instincts telling her that this was a bad idea, she latched onto the very enticing nipple. And like a good baby, she started suckling. She suckled lots and lots and lots. Without even thinking about the consequences.

The more she suckled, the more her teeth vanished. The more she suckled, the more her mind grew dimmer and dimmer. The more she suckled, the more she felt Mommy's milk hit her tummy. And bit by bit, she grew more and more dependent on Mommy. Because of course she would. She was just a Baby...

Asphodel smiled as both of those adorable Babies suckled away at her nipples. Ah... She was right to come to this world. So many adorable babies that she still needed to take home. This Island was very compatible with her powers as a Demon, and it had turned into a wonderful Nursery. And yet nothing beat the comfort of her own home. So eventually, she would take them all back home with her and make sure they grew up to be adorable ladies. Ladies that never forgot to love their diapies, of course.

And there was a good reason why they should love their diapies. A reason that both Nami and Robin became very aware of as they felt their tummies trembling and a bit of pressure built inside of them. Both of them squirmed in Mommy's arms, as they didn't really like the pressure. Even though they didn't realize that the pressure was because they had been drinking Mommy's milk. Of course Babies like them couldn't realize that Mommy's milk was filled with all sorts of poopy-inducing vitamins.

"There there. There there. It's okay. Mommy's right here. If you two need to go potty, then your potty's around your waists. You know what to do, don't you?" Asphodel chimed, her sweet voice pouring its way through the Babies' minds. So there was no way that they couldn't hear her, no way they could miss what she wanted to tell them...

Robin and Nami both listened. And for a moment, they felt their hearts waver. Mommy was telling them to... To go poopy. But... But they hadn't ever gone poopy, had they..? At least, that's what these quiet voices inside their minds were telling them. That they shouldn't go poopy, because that meant that they were giving into Mommy, and Mommy wasn't actually nice.

Those voices were really mean. So Robin and Nami did their best to ignore them. Mommy was always right! Mommy always wanted the best for them! So they pushed and pushed, because they knew exactly what to do when they needed to go potty! They had to push lots and lots, so they could push eeeverything out and let it all gather in the seat of their diapies!

Bit by bit, the voice that were trying to convince them not to go poopy vanished. And not long after that, they could feel the pressure inside them getting weaker and weaker. They felt soooo goood... Because going poopy in their pampies was always fun. It always made them feel extra squirmy down below! And they knew Mommy liked it when they liked the feeling of poopy...

Asphodel smiled, her hands cupping both adorable pirate Babies' butts as their poopy started to flow into the seats of their diapers. Bit by bit making the diapers leak out over the surface of her palms. They were filling those diapers very, very well. Making them sag more and more as they just pushed it all out. Everything that they didn't need anymore. Everything that would've made them exist as adults, being dumped out like it was nothing more than trash. It was very fun seeing them push this hard, knowing that they would never be able to return to normal after they got rid of that.

And she would be there to comfort them forever. Because they were her adorable Babies. So what if they couldn't go back to being pirates? Pirates were so dangerous. But when they were with Mommy, they were absolutely safe. They would always be able to have a happy life with Mommy. Always and forever, always able to smile from their hearts as they pushed and pushed. Such a happy life they'd have with Mommy...

Once both babies finished going poopy, and their diapers nearly sagged all the way down to Mommy's waist when she held them near her boobies, they finally popped off. And they drooled like the dopey little Babies that they were, as the lack of teeth made it impossible to keep the drool in. Only when Mommy made a pair of pacifiers appear in their mouths, pacifiers shaped like a Baby-themed Jolly Roger, were they able to stop making messes of themselves. At least, while they happily suckled on their pacifiers...

Thus, just like the Princesses they saw earlier, Nami and Robin would remain as adorable babies. And if somebody were to come and try and find them...

Asphodel would be happy to make them Babies, just as these adorable girls... Adorable Babies that always belonged to Baby Kingdom...