Unintentional Couple Behaviour

Unintentional couple behaviour

you two acts like a loving couple all the time, so what happens when someone points it out?

characters: luffy, kidd, katakuri, shanks and mihawk

(zoro, sanji, law, ace and sabo)

a/n: since a loooot asked for more, here I am eheh

words count: around 0.4k - 1.1k each

masterlist || ao3 || ko-fi

── .✦ Monkey D. Luffy:

You don’t know when it started.

Maybe it was the way Luffy always stole food from your plate, but make sure to never let anyone else touch it.

Maybe it was how he always grabbed your hand first whenever the crew split up.

Maybe it was how he insisted on napping with you, his head always finding your lap, his arms always looping around you like a makeshift pillow.

Whatever it was, it had been going on for way too long. And the worst part is that you never questioned it.

Until now.

It starts with Sanji.

You’re sitting at the dinner table, picking at your food, when Sanji suddenly snorts “You two should just date already.”

You blink “…What?”

Sanji gestures between you and Luffy “You’re basically a couple anyway.”

You choke on your drink.

Luffy just tilts his head, mid-bite “Huh?”

Sanji raises an eyebrow “Seriously? You guys act like a couple all the time.”

You open your mouth to argue, to deny everything, but then Nami nods “He’s right, you know.”

Usopp grins “Yeah, I mean, have you even seen yourselves?”

Franky chuckles “Super obvious, bro.”

You stare. And then Zoro, of all people, grunts “They’re not wrong.”

Your brain short-circuits. Luffy just blinks at all of them, then turns to you “Wait… are we a couple?”

Your face burns “No!”

The crew groans.

“Oh, come on.”

“You’re in denial.”

“This is painful to watch.”

You glare “We’re just friends!”

Luffy nods “Yeah! Just friends!”

The crew stares. Then Brook smiles “Oh? Then you wouldn’t mind if I asked y/n out on a date?”

Silence.

Then Luffy’s fork snaps in half and the table goes dead quiet.

Luffy grins at Brook, but it’s not his usual happy-go-lucky grin. It’s the grin he wears before picking a fight.

“Yohoho,” Brook laughs nervously “Just kidding.”

Luffy hums, still smiling “Good.”

Your stomach flips because holy shit. That was jealousy. Luffy was jealous... Over you.

The realization haunts you for the rest of the night. Because if Luffy was jealous then what did that mean?

Did he actually—?

No.

No, this is Luffy. He’s just protective. That’s just who he is.

…Right?

You barely sleep, and the next morning you wake up to Luffy in your bed.

Sprawled across your mattress. Arms locked around your waist. Face buried in your shoulder.

Like it’s completely normal.

Like he always does this.

Your heart pounds.

Because—wait!

He does always do this. Every night. Every time you’re on the Sunny, he sneaks into your bed without even asking. And you never questioned it.

Because it was just Luffy.

But now everything feels different.

You slowly try to move, but his grip tightens.

“Mm… don’t go” he mumbles sleepily, lips brushing against your skin.

And that’s it. You lose it.

“LUFFY, WHAT ARE WE?!”

Luffy jerks awake “Huh—?”

“What are we?!” you repeat, flustered as hell.

Luffy rubs his eyes, confused “We’re us.”

You groan “That’s not an answer!”

He tilts his head “What do you mean?”

You gesture wildly “This! Us! The sleeping together! The hand-holding! The food-sharing!”

Luffy suddenly grins “Oh.”

Your heart stops “What do you mean, oh?”

Luffy laughs. And then, without hesitation, he leans in and kisses you.

Soft. Certain.

Like he’s been waiting to do it forever.

You freeze. Your brain short-circuits.

He pulls back, grinning “So? Are we a couple now?”

You gape “…WHAT?!”

Luffy just laughs “Well, we’ve basically been dating this whole time, right?”

Your eye twitches “AND YOU KNEW?!”

Luffy shrugs “I just thought you knew too.”

You sputter, because what the hell. What the actual hell. Luffy just decided you were dating. And you never even noticed.

You flop back onto the bed.

Luffy just grins, tugging you closer “You’re thinking too much” he mumbles, nuzzling against you.

Your heart races.

Your face is burning.

But… maybe the crew was right. Maybe you and Luffy were always meant to be.

Even if you were the last person to realize it.

── .✦ Eustass Kidd:

You’ve always known Kid was the stubborn type. He was gruff, intense, and always had that tough guy act. But lately, you’ve noticed something strange. The more you were around him, the more he didn’t seem to mind you being there. In fact, he almost seemed to expect it.

It starts with those small things, things he doesn’t think twice about. Like when you’re both sitting on the deck, and a gust of wind hits just as you’re about to stand. Before you can catch your balance, Kid’s hand shoots out, steadying you. He doesn’t say anything, but his grip lingers just long enough for you to notice.

“Watch it” he mutters, his usual gruff tone, but there’s something softer behind his eyes. You smile but say nothing. Killer, standing nearby, simply raises an eyebrow before looking away, smirking under his mask.

A few days later, when the crew is at port, you notice Kid keeping an eye on you more than usual. Every time someone gets too close or even bumps into you, his sharp gaze zeroes in, and he doesn’t hesitate to step in between you and whoever’s too close. At one point, a shady pirate from a different crew tries to flirt with you. Before you can even respond, Kid steps forward, pushing the pirate away with a low growl.

“Get lost.”

You blink, surprised at his intensity, but he doesn’t look at you, just at the pirate who’s now backing off.

“Kid, I can handle myself” you say, rolling your eyes.

“Doesn’t mean you should have to” he grumbles under his breath, clearly annoyed by something. He turns away before you can say anything else, muttering about how annoying it is to babysit you. But you know it’s not just that.

The crew knows it too.

Heat lets out a low whistle as he passes by “Damn, Captain, didn’t know you were the protective boyfriend type.”

Kid turns on him with a glare “Shut the hell up.”

Heat just laughs, walking away. You shake your head, but the warmth in your chest lingers.

Then, it all comes to a head one evening. The crew’s just finished a round of celebrations, the ship rocking gently in the quiet of the night. You’re leaning against the rail, enjoying the peace when you feel him behind you.

“Can’t sleep?” Kid asks, his voice low as usual.

You turn around, finding him standing there, arms crossed, the moonlight casting a soft glow over his scowling face.

“I could ask you the same thing” you reply.

There’s a quiet moment as you both stand there, not speaking. His eyes never leave yours, and the tension between you both seems to grow with every passing second.

Suddenly, you hear footsteps approaching. Instinctively, you move closer to Kid. You don’t even think about it, but he doesn’t pull away. Instead, his hand shifts from where it was casually resting at his side to just hovering near your waist.

The ship creaks, the quiet atmosphere making you both more aware of each other’s presence. He doesn’t speak. Neither do you. His fingers are so close, just barely grazing your side as if to assure himself you’re right there.

The closeness feels… different. Intimate.

You glance up at him “Kid?” you ask softly, your heart beating a little faster.

He doesn’t answer immediately, instead, his eyes flicker over your face, and you can see the internal struggle within him. It’s a battle, and for a second, you think he might just ignore it, keep up the stubborn front.

But then, his hand finally rests against your side. His touch isn’t harsh, but gentle. You don’t pull away.

“I don’t know why I keep doing this shit” he admits, his voice low but clear “But when it comes to you… I don’t want to risk something happening.”

You blink, surprised “Risk what?”

His gaze softens, and the gruffness in his tone fades away. He looks straight at you, the usual deflective annoyance replaced with something more vulnerable.

“I don’t want anyone else near you. Not after I saw that idiot trying to hit on you.”

You smile, your heart fluttering in your chest “Kid, I’m not a damsel in distress.”

“I know,” he replies quickly, but there’s no hiding the quiet affection in his voice now “I just… I don’t want to lose you.”

His words hit you harder than you expected, and before you can even respond, something unspoken passes between you both. In a split second, his lips are near yours, and the kiss is soft, almost hesitant, like he’s still not sure if he’s allowed to show this side of himself.

But you kiss him back, your hand gently resting against his chest. The kiss lingers for a moment longer than either of you anticipated, but it feels like the world has paused, like this is the only thing that matters in that moment.

When you pull away, you both stand there in silence, but this time, it’s not awkward. It’s comfortable.

And then the moment is completely shattered by the sound of someone clearing their throat. You both snap your heads toward the entrance to the deck, where Killer and Wire are standing, watching with amused expressions.

“So,” Wire says, smirking, “you two finally gonna admit you’re basically married, or should we keep pretending this isn’t happening?”

Your face heats up immediately, but Kid just groans, rubbing a hand down his face.

“Go to hell” he grumbles.

Killer just shakes his head “Too late, Captain. Everyone’s been taking bets on when you’d figure it out.”

You gape “What?”

Wire grins “Yeah. Heat won. He said you’d kiss before the next port. Guess we owe him a round of drinks.”

Kid looks absolutely done. You, on the other hand, can’t help but laugh. Because honestly? It’s not surprising.

You look back up at Kid, who’s still scowling but isn’t pulling away from you. You squeeze his hand briefly before grinning.

“Guess we were the last ones to know, huh?”

He exhales sharply, shaking his head, but there’s no real annoyance in his expression anymore. Just acceptance. And maybe, just maybe, the start of something real.

── .✦ Red-Haired Shanks:

Being part of the Red Hair Pirates meant living in a constant mess of drinking, laughing, and reckless adventures.

And somehow you ended up being the most responsible one. Which was probably why everyone assumed you and Shanks were together.

The problem?

You weren’t.

But apparently, no one got the memo.

It starts with Yasopp.

You’re in the middle of patching up Shanks’ arm because, once again, he got into a bar fight for fun, when Yasopp smirks at you from across the deck.

“You know,” he says casually, “you’re basically married to him at this point.”

You nearly stab Shanks with the needle.

“What?!”

Shanks, meanwhile, just laughs.

And the worst part? He doesn’t even deny it.

“C’mon,” Yasopp continues, “you take care of him, clean up after him, yell at him when he’s reckless...”

“I yell at all of you.”

“Yeah, but you baby him.”

Shanks grins “It’s true. You do.”

You glare “I do not.”

Shanks just shrugs “If you say so.”

And that should be the end of it. But it’s not.

Because after that the whole crew starts treating you like... ugh.

“Oi, Y/N! Can you grab Shanks another drink?”

“Y/N, tell the captain to stop picking fights with Marines again.”

“Hey, Y/N, Shanks says he wants something spicy, maybe you could help... and it's not about food”

You want to scream.

But Shanks?

Shanks just goes along with it. Smiling. Laughing. Letting everyone assume you’re his.

And the worst part is that you let them, because deep down you don’t hate the idea.

And that’s dangerous.

Then one night, it all clicks.

You’re sitting at a bonfire, surrounded by the crew, listening to them sing and drink and bicker over who can hold their liquor best.

You’re not paying attention until you hear your name.

“So, Captain,” Lucky Roux says, “when’s the wedding?”

You choke on your drink. But before you can argue, Shanks just grins.

“Oh, give it time.”

The crew erupts into laughter.

You just stare at him.

Because... what????

Shanks turns to you, smiling like he didn’t just casually imply he plans on marrying you.

And something in his expression—

Something warm. Something knowing.

It hits you all at once.

The hand-holding. The lingering touches. The way he always pulls you onto his lap when there’s no room to sit.

The way he lets you fuss over him when he gets hurt, the way he only ever listens to you.

The way he looks at you like you’re something precious.

Your heart pounds.

And Shanks just grins against your lips.

“Took you long enough” he murmurs.

And when you pull back, breathless, flustered, you realize that maybe you’ve been his this whole time.

You blink, heart still racing as the weight of his words settles in. The laughter of the crew fades into background noise, the warmth of the bonfire casting flickering shadows over Shanks’ face. He’s watching you, waiting, like he already knows the answer, like he’s known it for years.

And maybe he has.

Maybe he’s been waiting for you to catch up.

Your throat is dry. You open your mouth, but no words come out, just a strangled sound of disbelief.

Shanks chuckles, eyes crinkling at the corners “You alright there, sweetheart?”

Sweetheart. Like it’s the most natural thing in the world. Like he hasn’t just upended everything you thought you knew.

Your hands tighten in his shirt, and you can’t tell if it’s to ground yourself or to pull him closer “You...” you swallow, voice quieter now, meant just for him “You should’ve said something...”

He tilts his head, considering “I thought I did. Plenty of times.”

You scowl, smacking his chest lightly, which only makes him laugh “That’s not what I meant, and you know it.”

“Oh, I know.” His fingers brush your jaw, featherlight, reverent “I just like seeing you all flustered.”

You groan, but you don’t pull away. And well, that says everything, doesn’t it?

And Shanks knows it too, because his grin softens, something unreadable flickering in his gaze “So,” he murmurs, close enough that his breath tickles your lips, “now that you’ve finally figured it out, what do you plan to do about it?”

The challenge is there, teasing, but there’s something raw beneath it, something real.

You take a breath. Then, before you can overthink it, you grab the front of his coat and pull him in, kissing him again, firmer this time.

The crew erupts in cheers. Someone whistles. Someone else yells about winning a bet.

But all you can focus on is the way Shanks smiles against your lips, like he’s just won something far more important.

And maybe you have too.

── .✦ Charlotte Katakuri:

The first time someone calls you Katakuri’s spouse, you nearly drop your mochi donut.

“Excuse me, what?”

The Big Mom Pirates stare at you like you’re stupid.

“Well, yeah,” Oven says, like it’s the most obvious thing in the world “You take care of him, he lets you into his tea time, you’re the only one who sees his face—”

Brûlée smirks “And you always defend him when people talk behind his back.”

Daifuku nods “Might as well be married already.”

You sputter “That doesn’t mean—! We’re not—! He’s just my commander!”

Oven raises an eyebrow “You ever see Katakuri treat anyone else the way he treats you?”

You freeze.

Because... okay.

That’s a good point.

Katakuri isn’t exactly warm with people. He’s respected, feared, distant. A perfectionist. The strongest Sweet Commander.

And yet, with you?

He lets you tease him. Lets you see him.

Lets you in.

Your stomach flips.

And you don’t know what to do with that.

You try to forget about it.

But after that you start noticing things.

The way Katakuri always saves you the best snacks at tea time.

The way he steps in front of you during battles without thinking.

The way he lets you touch him, his arm, his back, his face.

His unguarded moments are always with you.

And suddenly you can’t ignore it.

Neither can the crew.

It all comes to a head one evening.

You’re sitting with Katakuri in his usual spot, tea cooling beside him, the setting sun casting a warm glow over his sharp features. He’s eating, as usual, but his guard is down because you’re here.

And then the words slip out.

“…Katakuri.”

He glances at you, chewing “Hm?”

You hesitate. Then screw it.

“Are we… something?”

Katakuri pauses.

Slowly, he sets his cup down. Then he exhales, like he’s been waiting for this.

“You tell me,” he says, voice steady “Would it bother you if we were?”

Your heart pounds. Because no, it wouldn’t.

You swallow “No.”

Katakuri watches you for a long moment. Then, he smirks.

“Then I suppose we are.”

Your brain short-circuits.

“Wait—WHAT?!”

Katakuri chuckles, low and deep “Did you really think I’d let just anyone this close to me?”

You gasp, because hold on. Has he known this whole time?!

Your face burns “You could’ve said something sooner, you jerk!”

Katakuri just leans closer, his presence overwhelming.

“…Would you have been ready to hear it?”

You freeze, because damn it.

He’s right.

── .✦ Dracule Mihawk:

Living on Kuraigana Island with Mihawk isn’t easy, but somehow, you get used to it.

You get used to the silence. The way he watches you over the rim of his wine glass. The way he corrects your sword stance with the barest touch of his fingers.

You get used to the way he does things for you without asking, bringing you an extra plate at meals, fixing your sword when it’s damaged, moving his coat so you don’t sit on the cold stone steps.

It’s just how he is... Or so you think.

Until one day Perona stares at the two of you across the dining table and snorts.

“You guys act like a married couple.”

You choke on your drink. Mihawk just raises an eyebrow.

Perona grins “Oh, come on! You live together, train together, eat together—hell, you even drink out of each other’s cups sometimes!”

You freeze.

Because—wait. When did that start happening?!

You sneak a glance at Mihawk, expecting him to argue.

But instead, he just takes a sip of wine and says, “And?”

Your brain short-circuits.

Because what does he mean, ‘and’?!

Perona cackles “Oh, this is gold.”

Meanwhile, you’re too busy spiraling to notice the small, knowing smirk on Mihawk’s lips.

Because the truth is, he knew all along.

The next few days pass in a strange haze. Every time you’re near Mihawk, you’re hyper-aware of his actions. The way he hands you your sword when it’s too heavy for you to lift properly, the way he adjusts your stance when you’re practicing, even the way he leaves his wine glass half-filled so you can sip it without asking.

You can’t help but start noticing the little things. And it makes your stomach do these strange little flips you can’t quite explain.

You try to convince yourself that you’re just overthinking it. After all, you’ve spent so much time together, working side-by-side, that it’s only natural for him to be a bit… attentive. But you can’t help but feel that there’s more to it than that.

One evening, you’re training in the yard. Mihawk is watching from the porch, as usual, but today there’s something different in the air. Maybe it’s the cool breeze, or the strange feeling of him staring at you.

“Focus” he calls out when you fumble with your sword.

You grit your teeth and refocus, sweat already beading on your forehead. Your movements become sharper, more determined, but you can’t quite shake the feeling that something is… off.

When you finish the routine, Mihawk’s still leaning against the doorframe, arms crossed. He doesn’t say anything at first, but you can feel his gaze. You give him a quick, sideways glance, noticing the faint hint of a smile tugging at his lips.

“Something wrong?” you ask, trying to sound casual.

His response comes as a slow, deliberate drawl “You still aren’t quite in sync with your sword. I’ve been waiting for you to catch up.”

You feel your face flush, but you push through it “Yeah? Well, I’m not some grandmaster swordsman like you, Mihawk.”

He steps closer, his presence almost overwhelming, but his gaze softens for a moment “You’re getting better. I’m simply making sure you don’t lose track of your progress.”

The softness in his voice catches you off-guard, and for a split second, you feel as if you’re standing on the edge of something, something new.

But you quickly push it aside, shaking it off as just another passing thought. You turn to grab your sword again, determined to change the subject.

“Thanks for the help,” you mutter, trying to keep your voice steady “But I think I need a break. My arms are sore.”

Mihawk doesn’t respond at first. Instead, he merely watches you for a moment before he speaks again, his tone unusually gentle.

“Are you sure you’re fine? You’ve been training for hours without rest.”

You give him a small, appreciative nod “I’ll be fine. You’re too used to looking out for me, Mihawk.”

He lets out a faint chuckle, but you notice that there’s a strange intensity in his gaze now “I suppose I am.”

Before you can react, you feel something slightly off, a flicker of tension between you two.

It’s subtle, but it’s there. And you feel it in the way he looks at you, the way he almost seems to be waiting for you to say something.

But, just like that, the moment passes. He steps back, motioning for you to take a rest.

“I’ll prepare dinner,” he says quietly, as if nothing had happened “I’m sure you’re hungry.”

You blink “You cook?”

“Of course,” he says with a slight, almost invisible smirk “It’s not difficult, and you’ve been working hard all day. You deserve a proper meal.”

You feel your heart race at his words, but you manage to keep it together “Alright, I’ll take you up on that.”

But as Mihawk turns to walk away, you pause.

For just a second, you wonder... has this always been a normal interaction between you two? Or has it grown into something more without you even realizing it?

The unease gnaws at you as you sit down on the steps, watching him disappear into the house.

You’re overthinking it. You’re just friends.

...Right?

Later that evening, you’re sitting across from Mihawk, your meal already finished. The conversation is easy, but there’s still that lingering, unspoken tension hanging in the air.

Finally, Mihawk breaks the silence, his voice low and casual “You’ve been avoiding the subject.”

Your brow furrows in confusion “What subject?”

“The subject of us.”

You choke on your drink, sputtering “What—us?!”

His expression remains unreadable, but there’s a faint glimmer in his eyes “You think I haven’t noticed? You’ve been acting strange around me lately. Ever since Perona made her comment.”

You freeze “I—uh—”

“Let’s stop pretending,” he continues “We’ve been behaving like a couple, whether we admit it or not.”

Your heart starts to race. You open your mouth to deny it, but the words get stuck. Instead, you just stare at him, trying to make sense of what he’s saying.

And that’s when Mihawk leans forward just slightly, his voice dropping lower “I don’t know what you’re feeling, but I do know that I don’t want you to leave.”

The bluntness of his words takes your breath away.

“I never planned to leave” you manage to say, the words barely leaving your lips.

Mihawk gives you a rare, genuine smile, one that’s so small and almost imperceptible that you’re not sure you saw it at all. But something in his eyes shifts.

“Good.”

And just like that, the tension finally breaks.

You’re not sure where this will go. But for now, you’re content to just be here with him, uncertain, but sure of one thing: neither of you are going anywhere.