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demonpiratehuntress · 3 months

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recently read your baby!name x op characters and i was thinking what abt name x baby!op characters-

they somehow turned into babies for 24 hrs (like in your fic)

just randomly thought of this while scrolling thru baby op characters on pinterest lmao

anyways have a great day/ night~~

love this idea!! I just wanted to do baby (name) first since i've seen a few baby OP characters but im more than happy to do it!

i finally got my laptop back, but im actually so upset it took so long to be fixed, and that i couldn't get all your requests out sooner! im so sorry this took ages, and to everyone else who requested before i closed requests - yours will be out soon enough! once again, so so sorry everyone :(

taglist - @kabloswrld

baby OP Men! (Straw Hats, Law, Ace, Kaku)

featuring - Zoro x F!Reader, Ace x F!Reader, Law x F!Reader, Usopp x F!Reader, Luffy x F!Reader, Kaku x F!Reader, Sanji x F!Reader

summary - the OP men get turned into babies for 24 hours and naturally, you're the babysitter.

warnings - none except that i haven't watched far enough to know what Law and Ace were like as kids so them and Kaku will just be wild guesses. and there is no longer yellow font so i will just be making Law's colour blue.

ZORO

Waking up to the sounds of things breaking and crashing against other things wasn't uncommon on the Sunny. It has been something you'd all become accustomed to on the Merry, which just carried over to the Sunny. More often than not, the source was Zoro and Sanji, so you just rolled over and went back to bed.

Until the cry of an infant woke you right back up.

You looked down at yourself, sighing in relief when you realised it wasn't you this time. However, if not you then who?

You got your answer when you walked into the kitchen and spotted a green-haired baby fussing and throwing pots at a scowling blonde cook.

"Devil child!" Sanji yelled, earning him another pot to the face.

You laughed at the sight, and both of them turned to look at you. Sanji breathed a sigh of relief, while baby Zoro crawled across the countertop to get to you.

"What happened to him?" You asked the cook as you lifted the moody infant up into your arms, where he relaxed and cooed happily.

"That idiot got too cocky and tried to take on a devil fruit user without knowing what the devil fruit actually was," Sanji explained, throwing another hateful glare at the baby swordsman in your arms. "Now he's stuck like this for a whole day."

You volunteered to care for him, something that no one else seemed willing or able to do. You supposed it was fitting, since Zoro threw a tantrum every time he was with someone who wasn't you. It was funny really, how he would scream and throw things when you set him down or handed him to someone else and then immediately fall silent when you picked him up again. Zoro was not a clingy adult, but he was certainly a very clingy baby.

But you didn't mind.

He was calmest when you sat and watched the ocean with him perched on your lap, bouncing a little on your thighs as he tried to see over the railing. You laughed and lifted him up, setting the green-haired infant on your shoulders.

"That better, baby?"

He cooed and clapped his tiny hands, indicating he was much more satisfied now. Then his fingers found your hair, and be busied himself pulling and playing with it as you chuckled and let him be. His attention span was short, but even shorter now that he was barely a year old.

"Not too hard now," you reminded him, laughing when he just pulled harder. "Even as a baby you're a bully." That only earned you a whine and a harder tug on your strands, but you only laughed more because it didn't really hurt.

He ended up falling asleep on your chest that night, small hand fisting your shirt. You were humming and singing softly to get him to sleep, so it was a bit of a relief when you saw his eyes closed.

In the morning, he hovered over you with a teasing smirk on his face.

"So I'm a bully huh?"

ACE

After your encounter with the de-aging devil fruit user, you would think Ace would have been more inclined to avoiding him. But no, your boyfriend was super confident that he could take this guy on and not get hit with the de-aging beam, which is why you were now back on the Moby Dick with a very pouty infant Ace on your lap. He only wore a diaper, and had thrown a tantrum when you tried to put something else on. The crew was laughing and teasing him, which only made him poutier.

And also shoot little balls of fire at their shoes. He looked at you innocently, but you knew he did it on purpose.

Ace is just as naughty as you would think he'd be as a baby. If you lose sight of him for one second, he's gone and you're running around panicking and trying to find this troublemaker, which is much harder now that he's so small. You end up finding him under a table or crawling towards any set of stairs on the ship. And he'll giggle and smile innocently, instantly earning your forgiveness.

"You're a handful, you know that?" You huff as you pick him up right before he tumbles down some steps. "Stop trying to hurt yourself!"

Ace just cooed and reached for your face, patting your cheek affectionately before nuzzling his face against it. He becomes so clingy when you try to do work while babysitting him, always pulling your hair or squeezing your nose hard when you paid more attention to a chore than him.

"Ace! I'm trying to work, I'll play with you just now."

Ace babbles nonsense and starts to cry, making you sigh as you turn your attention back to him. Then he immediately stops crying and is happily giving you sloppy kisses all over your face, his mood changing in that split second.

You don't get any work done.

Ace also has a tendency to disappear when you set him down for one second, only to reappear by a screaming crewmate who's trying to put out a fire on their pants. The little 2nd division commander would howl with laughter and fall onto his back, before pouting when he realises he can't get up and then cries for you. Little Ace is a menace.

"You need to go sleep!" You sighed in exasperation as you rocked Ace back and forth gently, later that evening in your room. "Please?"

Ace just giggled and sucked in his tiny fingers, a very blatant 'no'. You sighed and sat on the bed, setting him on your lap. Trying to bounce him didn't work because he just got excited and more energetic. Then you finally remembered the one time he never fails to sleep, and you were almost mad at him for making you so tired and worn out that you'd forgotten.

You got him the softest food you can find in the kitchen, and watch in amusement as he falls face-first onto the bed next to the bowl. You quickly turn him over, laughing softly as you tucked him in.

LAW

Law doesn't make mistakes often, but when he does they have extreme consequences. Like now, when you'd warned him about something but he overlooked it, claiming it wasn't important. Which ended up with him sitting on your lap, looking at you with big, innocent eyes - an infant.

You weren't sure what to do with this tiny version of your pale boyfriend. So for a while you just sat there and kind of...stared at each other. He was looking into your soul - you were sure of it, because no baby has a look that intense.

"So..." You started, "What do you want to do?"

Blank stare. That's all you got. Law was not so different as a baby, he was extremely quiet and reserved, he didn't move much and he just stared. It was almost like talking to a baby doll.

"Right, um...are you hungry?" You tried again.

He blinked. Then he crawled off your lap, attempting to jump off the bed but being caught by you since he would very obviously hurt himself. He tried to glare, but he was so small and cute it became a very adorable pout.

"You're tiny remember!" You groaned. "I know you don't like asking for help but come on, you're going to hurt yourself."

He rolled his eyes.

"HEY!"

Then he giggled, something you didn't expect. Your jaw dropped, eyes going wide as he flat out giggled at your response to his little display of attitude. He was so cute giggling that you didn't want him to stop, but once he realised you were grinning at him he immediately went quiet and pouted again.

"You're impossible."

Another giggle, and you side-eyed him. He only giggled more before pointing to the bookshelf in his room. You sighed and took him over to it, letting him reach for whatever book he seemingly wanted you to read to him. Of course, it was a medical book.

You laid him against your chest as you leaned back against the headboard, opening the book and going to its contents section to decide which section to read to him. But he grew impatient, and reached out to grab a tiny fistful of pages and turn them over.

"Alright then."

As you began to read, Law listened intently and focused on the picutres, his eyes wide with interest. You smiled softly at the sight, marvelling at how cute he was when he was curious at this size. But he was still a baby, so after a few minutes of reading his eyes started to droop and he turned his body a little so he could grasp your shirt in his small fist. And then he was out, and you smiled and kisses the top of his head as you set the book aside and cuddled him.

Baby Law was so sweet and cute, even if his attitude was just like adult Law's.

KAKU

"And what have we learned?"

Of course, you couldn't expect a response from the man you were asking that question. That would be because he was now less than a year old, laying flat on his back across your legs and gazing up at you with big, innocent eyes. He just cooed softly and kicked his small legs lazily, reaching for you.

You sighed. The idiot had gone head-first into a fight he didn't properly think through. It was his most reckless move yet, and now he was paying the price as a baby. Simply because Jabra had pissed him off.

Kaku was a relatively calm and quiet baby. He didn't fuss much, and he wasn't too noisy. Adorably, he was also a shy and easily flustered little infant. But one thing he did want was your attention, and he wanted it the whole day.

So you carried him around the whole day, much like he'd done when you'd been babified. You rarely left him alone, and if you did it was only for bathroom breaks or like five seconds. You were afraid of leaving him around alone, because the other CP9 members could be mean and careless and some of them would definitely be rough with and bully him.

You had to admit, his little long nose was the cutest thing ever, apart from when he accidentally bumped it against you and then giggled. He was so sweet, rubbing the spot he bumped with his small hand and then giving you a sloppy kiss.

Baby Kaku is also very playful. Once he gets comfortable in his state. He tries to make funny noises with his long nose and then erupts into the cutest baby laughter right after. He will also curiously pull on his nose, only to have it wobble like a springboard when he's done, causing more giggles.

"Come onnnnn it'll be good!"

Unfortunately, he was very fussy with his food. You were trying to feed him some mashed potatoes, because that was the only appropriate thing you could find, but he just stared at you like 'really?' and kept his little mouth closed. After that, you were forced to go out and buy baby food.

Like Law, baby Kaku wants to be read to. But he won't be satisfied with the usual infant storytime books, because even as a baby he is much smarter than that. He prefers something historical, which may be boring for you but absolutely thrills him. He gets excited and bounces on your lap, tapping the book with his small hands while you're struggling to keep your eyes open.

When he's finally ready to sleep, he tries to fight it because he likes having you baby him like this. But eventually he drifts off when placed on your chest, because you're so warm and comfortable it lulls him into slumber.

When he wakes up an adult, he looks sheepish.

"We learned not to rush into a fight recklessly."

LUFFY

If you thought Luffy was a menace as a teenager, you were really in for it when he got turned into an infant by the same devil fruit user who'd done it to you. Of course, Luffy being Luffy, he forgot about that and charged straight into the fight without even considering your plan. And that's what now led to you having to carry a very fussy, very tiny Monkey D. Luffy back to the Thousand Sunny.

As expected, he is an active infant.

"Luffy no!"

But not only is he baby Luffy, he is baby Luffy with stretchy abilities. As seen now when he giggles loudly and grabs the mast, before propelling himself halfway across the ship. If Robin hadn't been around to catch him using her own devil fruit ability, you're pretty sure you'd be facing a sobbing, snotty-nosed little captain.

You have to chase this baby around the ship to actually change him or do any of the basic baby care things. He is so quick to crawl away when it comes to diaper-changing, but he is even quicker to crawl back with the promise of food, as usual. You cannot take your eyes off him though, because if you do for even one second he's gone and a ship-wide hunt for the naughty infant has to be conducted.

Infant Luffy is VERY good at hide and seek.

"Now where could Luffy be?" You say out loud as you walk around the ship, amused when a little giggle follows your words. "Maybe he's in the kitchen." Another giggle. "Or maybe he's right...here!"

And when you uncover his hiding spot and grab him, he squeals and tries to wriggle out of yours arms. But ultimately starts giggling and laughing uncontrollably as you tickle his little sides and smother his tiny face in kisses. He loves having all your attention on him, and will not hesitate to trip someone from the ground or reach around you to pull on their hair if they take your attention away from him for even a second. Baby Luffy is a lot clingier than grown up Luffy.

But if you sit him down in the aquarium or in the crow's nest and let him watch the fish or the water while you tell him stories about Shanks that he's told you before, he'll calm down a little bit and relax. His eyes will go big and he'll stare at you in awe as you tell him all of these stories, even if he doesn't really understand. And when you make big gestures to try and show him, he cutely tries to mimic you and make those same gestures with his little arms. Which always has you cooing at him and him giggling at how cute you found it.

He was so hyper that you almost couldn't put him to sleep, and you didn't think he would ever fall asleep. But after a while of you - once again - chasing him around the ship, you finally caught him and managed (somehow) to rock him to sleep.

When he woke up a grown boy, there really wasn't much difference in his behaviour, even after you told him about his infant self.

SANJI

Honestly you don't even know how it happened. One minute you're engaging the enemy, the next your old friend with the de-aging devil fruit appears and this time targets your boyfriend. Which is why now you're sitting in the kitchen with a pouty baby cook on the table, the two of you just staring at each other.

When he realises he can't cook like this, the poor blonde bursts into tears, looking so upset it breaks your heart. You quickly pull him into your arms and cradle him, and he slowly calms down and looks up at you with his big, round eyes.

"There we go," you smiled at him, kissing his little cheek. "It's okay."

If you think Sanji is clingy as a grown up, his clinginess soars to new heights as a baby. He will absolutely not let go of you if you're holding him, not for any reason other than you needing the bathroom. He wants your attention on him for the full 24 hours, which of course is nothing new but still makes you laugh every time he gets pouty when you're not looking at him.

He's also a very sly baby. He uses his cuteness to his advantage to get Zoro in trouble, because every time he cries and points to Zoro, you glare at the swordsman or chuck something at him, much to Sanji's amusement.

"You're ugly and annoying even as a baby!" You heard Zoro shouting when you'd left them alone for one second to fetch some food for Sanji. "Stop looking at me like that!"

"ZORO!" You chided as you walked back into the room, coincidentally as soon as Sanji decided to start bawling to exaggerate the situation. He pointed at the green-haired swordsman as he cried, making you sigh and smack him upside his head. This caused Sanji to stop crying and giggle, earning a glare from Zoro.

"Why, you-!"

"Zoro, he's just a baby," you sighed, "He's going to annoy you."

"He annoys me regardless," the swordsman huffed, walking away. "Just keep that little demon away from me."

Sanji stuck his tiny tongue out at the bulky man's figure as he retreated, making you laugh and scoop the cook up into your arms. He immediately relaxed and cooed happily, playing with your shirt as if it was the most interesting thing in the world.

Sanji is a fussy eater, which you kind of figured. He doesn't settle for just any soft food, he specifically likes pureed apple. So every time you have to feed him, you have to either feed him some you got from an island you had to stop at when you first found out about his preference, or you have to puree the apples yourself.

Changing Sanji's diaper is also easy, because he's very calm and he lets you do it without much fuss. You have no issues putting him to sleep, either, because once you've changed him for the last time at night, he's out like a light. And you smile and bring him to your bed to sleep, laying him in between your pillows.

When he wakes up, he's back to being a smug little mf because he woke up in your bed.

USOPP

Honestly you didn't even know what had happened while you had stayed on the ship to keep watch. The others all returned looking weary but otherwise okay, so you just assumed Usopp was too, and you didn't think to ask why Brook and Sanji looked so suspicious, passing something between them behind their backs. That is, of course, until you heard the unmistakable sound of an infant crying.

"What was that?" You looked at them, raising an eyebrow.

"What was what?" Sanji asked, laughing nervously.

The infant cried again, and you stalked over and pushed them aside to reveal your boyfriend...only smaller. Baby Usopp stared up at you with wide, terrified eyes, tears streaming down his adorably chubby cheeks.

"What the-How did this happen??"

You looked up, but everyone avoided your gaze and made excuses to leave. So you just sighed and picked the baby up, wiping his tears away and gently rocking him to calm him down. He did eventually, but the terror never left his eyes as he got hold of your shirt collar and never let go.

"Hey, hey," you cooed softly. "It's okay, I'm here."

When he calmed down, you realised he had been so scared that he'd messed himself, so you changed him. Poor Usopp was already so nervous and frightened as a grown up, that as a baby he was almost always shaking. But you put him at ease, and whenever he was in your arms he was calm, relaxed and very playful. He liked your hair, liked to play with it and also, apparently, eat it.

"Usopp no!" You laughed as you once again had to pull your hair out of his tiny mouth. His bottom lip trembled, and you quickly amended it by kissing his cheeks and giving him something else to play with.

He liked to tinker even as a baby. You gave him the safest things he could play with, and he would try to arrange it in a certain way that wasn't just a jumbled mess. You were very impressed when he managed to stack all the gold coins you'd given him to play with - under Nami's strict supervision, of course.

However, he was naughty when it came to being fed. It wasn't that he was a fussy eater, he just liked to play with his food. And he had incredible aim, so every bunch of food he threw landed on its intended target. Which was you. Sanji had tried to feed him, but the stress of wasted food got to him and you had to replace him before he yelled at poor baby Usopp.

Putting him to sleep is relatively easier than putting anyone else on this list to sleep. As soon as you noticed his eyes drooping while you told him a story - one of his own made-up adventures - you picked him up and placed him on his bed, and he was out.

When he woke up in the morning, all grown up, he groaned.

"That was the scariest experience of my life."

A/N: I'm so sorry if this seems rushed or isn't as good as you expected, it's been a busy few weeks and i'm so mentally exhausted but i really wanted to get this out for you! Again, requests that were in my inbox before i closed them will be posted as soon as possible! Please just be patient with me, 2024 is turning out to be a weird year for me.

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