Not Just Anybody | Baby Daddy!sukuna X F!reader

Not Just Anybody | baby daddy!sukuna x f!reader

summary: on the rare occasion that sukuna takes his nephew out to the park, he notices another kid with blush pink hair— a baby to be exact. he tries not to stare too much, but it’s hard not to, it’s a rare hair color. it’s not until the baby’s mother takes her out of the swing set and back into her stroller when he realizes why you ghosted him almost 2 years ago.

genre/warnings: hidden child trope, ex-fwb to co-parents to lovers, angst, fluff, smut

part one | part two

Sukuna wasn’t very obsessed with the thought of having children, that desire (or lack of) continued to dwindle after his nephew turned 4 and is now all over the fucking place. He doesn’t mind watching him, but with each year it's becoming more difficult trying to get the kid to focus and listen to him. 

“Yuji.” The man barks out, beginning to scold the boy because he immediately starts running across the street the moment the crosswalk sign turned on for them. Didn’t matter if it was a private neighbourhood, he’d speed through the signs as much as anyone else. “I told you to hold my fucking hand– get over here.”

“Oops, sorry!” Yuji starts to skip back. It’s almost insulting how unworried he is when it comes to Sukuna and his temper, but he’s used to it by now. He reaches out to hold his uncle’s hand– even having the audacity to swing it back and forth. Sukuna just lets him because he ends up feeling bad whenever he yells at Yuji while he’s happy. 

He guesses the one thing that’s gotten easier when it comes to watching the little crackhead is that he can now finally take him to the park. He’s able to run all that unnecessary excess energy off, making mid-afternoon to dinner time easier because he just eats and naps until Jin comes to pick him up. 

Yuji’s especially excited today, they're going to a new park that’s just down the street from Sukuna’s new house. It was a nice neighbourhood too, Sukuna already knew the place was going to be like Disneyland for the kid. 

“Uncle! Look!” Yuji yells out. 

He’s been looking this entire fucking time, why are children like this? Yuji’s slightly better than most, immediately flipping under the monkey bars like a pro after receiving his Uncle’s nod of approval. 

“Good job, Yuj.” He says in return. Jin should really take him to a parkour gym one of these days… maybe get him checked for adhd too while he’s at it. 

He continues to watch the boy until he suddenly hears some baby’s laughter on the other side of the playground. It reminded him of when Yuji was a baby, always squealing over something, even if it was something as simple as ripping a piece of paper in half. It was cute. 

He tried to drown out the noise, but this kid was having the time of their life, so he eventually looked in the direction of where the laughter was coming from. He’s genuinely surprised when he sees a little baby girl with fluffy pink hair. It’s a rare hair color and outside of his family, he’s only seen less than a handful of people that naturally had it in his entire 27 years of life. 

She couldn’t be older than a year old. Her mother– or nanny, this neighborhood has a ton of them, is kneeling in front of her and gently pushing the swing back. Everytime she pushes the swing back, the laughter gets louder.

The lady eventually picks the baby up and smothers her with kisses… the same way you used to smother him with kisses, almost 2 years ago. 

And the moment you turn around and place her back in her stroller, it becomes very apparent as to why you completely ghosted him 1 year and 7 months ago. 

Yes he’s kept track, you were the best fuck of his life. He’s been chasing that high after you practically vanished off the face of the earth, you even changed your phone number. For all he knew, you were dead.

Sure, he complained about Yuji here and there, but it couldn’t be that bad to the point where you decide not to tell him anything and just raise a baby completely on your own.

Maybe you weren’t all on your own to begin with. That thought makes him continue to mentally spiral, he’s honestly ready to fuck everyone up at this point.

“You fucking bitch.” He murmurs to himself as you begin to walk off with the child that is without a fucking doubt his. He quickly grabs his phone and calls a close friend, one that’s a little too good at finding people's personal information. 

“Hey what’s u–”

He immediately cuts Uraume off and cuts straight to the chase. “I need you to find someone’s address for me.”

---

“How’s the party planning going?” Your mother asks, trying to keep the conversation going, in hopes of her granddaughter waking up before you inevitably end the conversation. 

“It’s alright,” you vaguely answer. “I don't know, I’m not too worried about it. I told the planner to just make it pink and cute… and to trust her gut so she doesn’t bother me too much.”

“Honey!” She scolds you. “It’s your daughter's first birthday for christ sake, can you sound a little more excited about it?”

“I am excited,” you hiss back. “It just makes me sad to think about how fast time went by, I don’t want her to grow up.”

“I was sad about it too when I was planning your first birthday, but I was still included in the process.”

“Well that’s you.” You giggle as you finish wiping the kitchen counter. “It’s not that big of a deal, there’s party planners for a reason.”

“You’re going to look back one day and regret it.” She says, you can hear her shuffling around in the background. 

“Maybe.” You mumble, thinking about other things you’ll probably regret more than not being included in the process of planning a party. 

Like not telling Sayomi’s dad about her. 

You always wonder what his reaction would be if he were to ever find out. It’d most likely be one filled with rage, you’re just not sure if it would be towards having to be responsible for a little human being or towards the missed time. 

Probably the former. He was as irresponsible as they come, but so were you– at least at that time anyways.

You both were too busy in your careers to settle down, it’s why you never put a label on things. With anyone else, you would’ve put your foot down— if they’d didn’t claim you, you were gone. 

Not with Sukuna, he made you weak.

He made it so hard for you to put your foot down that you never even considered asking the dreaded “so what are we?”

He gave you just about everything during those meetups— he was fun to talk to, made you feel wanted, even the aftercare he gave you was unmatched. 

He fucked you like he loved you— slowly dragging his cock out of you, as if he wanted you to think about what you were missing in those few moments. All just so he can shove himself back into you, as a reminder that everything you needed was right there, on top of you. 

He’s a fucking asshole, but knew how to play the role of a loving boyfriend in the hours you visited him. 

Keyword: in those hours. Outside of that, he was practically none existent. But you couldn’t blame him, he was an up and coming rugby star. He spent his days training or strategizing with his teammates for the next game, he spent half of his year traveling. He didn’t have time for anyone but himself.

Eventually, you started ditching a condom all together. You swore your birth control would do the job— it fucking didn’t, and a part of you still wants to sue that company. 

But you don’t, because it wouldn’t hold up in court due to the 1% chance it won’t work, or whatever that percentage is. Plus, you don’t want your daughter getting on your case over it one day if she did find out. 

It’s not her, it’s the principle.

It was your fault at the end of the day. You were just straight up reckless with the way you let him.. ahem— begged— him to come inside of you each time he was all up in your guts. He’d taunt you for being weak, driving his dick inside of you even faster and harder whenever you showed signs that you were close, then encourage you to cum right on his cock that’d split you open each and everytime time you met up with him. 

You were so scared at first, going back and forth on how you should tell him– if you should tell him. A big part of you wanted the baby and convinced yourself he’d make you get an abortion out of fear that you might just be after money, so you never did. 

Yeah, you gaslit yourself.

But everything turned out better than you thought it’d be. Your parents were willing to set you up in a gated community just because it was safer for you and your daughter to live there. They pay the rent while you pay for everything else. 

You now run your own business managing multiple businesses’ social media accounts. It’s quite lucrative, so you’re able to afford a nanny while working from home.

Your parents love Sayomi and don’t hold back showing it. They don’t know who her father is, you won’t tell them… but she oddly looks like a well known rugby player that's from the region. 

It's a suspicion they keep to themselves though, they like spending time with her and would rather not start an argument with you after asking who the father is. It didn’t end well last time, so they just avoid the topic now. 

You’re suddenly pulled out of your thoughts after someone rang your doorbell, must be your neighbor that you became friends with shortly after moving here. She’s the typical neighbour that shows up at your door asking for sugar or eggs comically enough. 

“Can I call you back, mom? Someone’s at the door.” You kindly interrupt her. 

“Actually, we can continue this later.” She sighs, you can hear her keys jiggling. “I’m leaving for a yoga class right now.”

“Okay. Have fun!”

“Thank you sweetheart. Give Yomi a kiss for me when she wakes up.”

“I will, bye.” The doorbell rings again right after you hang up, which slightly annoys you since they haven’t been waiting that long. It’s like they think a second ring is gonna have you running to the door. 

It rings a third time and you hold your tongue, yelling back is just going to wake up the baby. 

You finally open the door and an immediate chill runs down your spine as you look up at a very angry Sukuna. He as tall as ever, presence as imposing as ever, and for the first time it is you that his anger is directed towards.

His eyes momentarily drift down to your chest before speaking. “We need to ta–.”

Completely terrified as to how he even found you, let alone get past security to even enter this neighborhood, you immediately slam the door in his face.

And you should be terrified, he begins to laugh before raising his voice. “I see you haven’t changed one bit.” He says— hoping you can hear him, hoping your back's up against the wall and panicking right now. “I haven’t changed either, sweetheart. Better open up before I show you I’m still crazy as fuck if you piss me off.”

You’ve seen it before, multiple times, just not towards you. Each time you saw it, you’d always pray that you’d never find yourself on the receiving end of the man's wrath. 

“You need to leave before I call the cops. You can’t just go around threatening people like that.” You say, powering through the shakiness of your voice. 

“And you can’t just hide a child from their father either. I saw you two at the park, let me see her.” His voice is still calm, but becoming more firm. He knows you're bluffing. “I’m giving you 10 seconds to open this door before I give you a reason to call the cops.”

There’s nothing but silence from your end, it’s infuriating to him. Each second that passes, he feels like he’s slowly being removed from his own body, being replaced by something that thrives off rage. 

And for you, you kind of wanna die right now, but unfortunately you can’t because you have a daughter to take care of. The sound of his voice ends up being drowned out by your own thoughts, thinking about the possibilities of what would happen if you opened that door. 

But before you know it, you’re quickly pulled back to reality as he ends his countdown and begins to bang on your door incessantly. 

“Open the door— I’m not fuckin’ around, open the FUCKING DOOR.” He yells out your name, pounding at the door so hard you’re sure he’ll break it off its hinges. “I’m not fucking leaving until you open up and let me see her! You should be glad I came here instead of going straight to my lawyer you piece of SHIT– OPEN THE FUCK UP.”

As if it couldn't have gotten any worse, your daughter wakes up from the ruckus. Her cries will always be ten times worse than Sukuna’s knocking, you’re convinced from the way she is screaming from the top of her lungs as if someone were hurting her.

“Fine just.. shut up! Please!” You finally snap and nearly beg from the overstimulation of listening to your daughter crying and a grown man literally barking at the same time. You begrudgingly swing the door open and he’s met with a set of tired, glossy eyes and decides to settle down. “I just put her down and it takes forever doing it.” You lightly complain.

He says nothing in the response, slightly stunned at how quick your mood changed. Not like he has much of a choice though, you storm off before he gets the chance too– being left to shut the front door on his own and awkwardly wait at the foyer because he doesn’t know where the hell you went off to. 

The house is nice, almost as big as his. But it’s also too big for just the two of you, leaving him to wonder again if you had a partner or something. Not that he’s one to talk. He lives alone, but he has his family and girlfriend over often since he has the space to entertain guests.

Fuck— he just asked if she wanted to make things official last month. She’s not gonna be happy about this.

His thoughts are quickly pushed away though when he hears the sounds of footsteps, whimpering, and you gently shushing them. 

You and the baby finally come into view, both frowning at him for different reasons. He was too far away earlier to see, but aside from your eyes and death glare, the girl looks just like him. 

Sayomi’s staring at him with a look that screams “what the fuck is this stranger doing in my house”, all while gently sniffling because she is rightfully pissed about being woken up. 

You can’t help but notice how stiff he is while looking at his carbon copy and decide to be the first one to speak up, by formally introducing him to her. 

“This is Sayomi and she’ll be 10 months old in a week.” It’s cuter when you say it to other people, their reactions are usually squishing her cheeks and raving about how adorable she is. Sukuna looks more shell shocked than anything. “...Do you wanna hold her?”

“I mean… yeah, but not if she’s just gonna get mad at me and start crying.” He says, while Sayomi continues to stare him down. Well, at least he respects boundaries, that’s sort of a good sign. 

“Lucky for you, she stares at things she finds interesting. If she didn’t want you to hold her, she’d have a death grip on to me right now with her face tucked into the crook of my neck.” 

He has a quick flashback of how he used to do the same with you whenever he was tired, but quickly shakes it off. Now’s not the time to start yearning for you or your touch all over again, he literally just got over you. 

“You sure about that?” He says, slightly hurt from the way she’s side eyeing him. 

“Positive.” You hold back a sigh at his hesitance. He was acting like he was going to murder you just 5 minutes ago, now he looks like he’s scared of an innocent baby. “Just take her please, my arms are starting to hurt.”

It’s one of the things that comes with having a child with a rugby player, they’re chunky. But you can’t complain too much, she’s very huggable. 

You end up handing her to him before he gets another chance to protest, not bothering to instruct him on how to hold her because you know all about how he’d watch Yuji. Even with your child being in the 90th percentile, she still looks miniature when being held by him. 

“Look at you, cheeks are all wet from cryin’.” He murmurs, beginning to wipe them off. She sniffles again and lets out a deep sigh in response– you both know it's a good sign, she’s finally settling down after getting ripped out of her sleep. “M’sorry, I just wanted to meet you.”

You talk to her normally too, so she usually babbles back to people in response, which is what she does in response to his words. It’s ridiculous(ly) (cute), watching her slowly open up to him just minutes after losing her shit— something she gets from her father. Each time she babbles out some incoherent sentence, he acts like he knows what she’s saying and she smiles a little more each time. 

“Mama.” She suddenly turns to you and says, pointing her finger at him. It's her little way of asking who he is since you always tell her the names of things she points at.

“That’s Dada.” You say in response. “Can you say Dada?”

“…Ada.” She confidently says.

Close enough. 

You avoid Sukuna’s gaze, you can just feel how annoyed he is at this point. “Has she said Dada before?”

“Mhm, last week.” You say enthusiastically, playing with Sayomi’s hand after she grabbed onto your thumb.

“Must’ve been her tryna manifest me. Probably thinking, ‘let me meet my dad, you conniving bitch’ or something.” He says in the same smooth tone.

“Watch it.” If he weren’t holding her right now, you would’ve smacked him for calling you that. 

“Did I lie?” He argues with you in a playful tone, then turns his attention back to his daughter who’s completely unaware of anything for obvious reasons. “‘Cause last time I checked, your Mama hid you from me.”

“Don’t do this in front of her.” You warn him.

“Fine.” He lets it go, after getting one last jab in. “Any other words that I missed out on?” 

“She also knows how to say no.” 

He chuckles, “sounds like my kid.” 

“Unfortunately.” You say under your breath. It wipes the smirk off of his face but you don’t notice it since you start to walk away from him, he quickly follows with little Sayomi in his arms. 

“How did you find me? Actually, how did you even get past security?” You ask, leading him to the living room.

“I know someone. I also live in the northern part of the neighborhood.” He not-so-humbly brags. That’s the area where you need to go through three different gates just to get to a house. “Just moved there last week.” 

No wonder why you haven’t seen him at the private grocery store yet.

“Well that’s… good.” 

“You don’t mean that.” 

“I don’t know what else to say. I don’t even know what to think right now to completely tell you the truth.” You admit.

“Yeah? Imagine how I feel.” He scoffs, plopping down on the couch with the baby still in his arms. “Can she walk yet?”

“No, she’s able to pull herself up and stand for a couple seconds though.”

“Is that so?” He looks back at her, at this point her interest has moved on to something else— the little bunny plush on the other side of the couch that she’s pointing and humming at. 

You beat him to it and hand it to her before sitting down beside him, with a reasonable amount of space between you two. He’s taking this a lot better than you thought he would, probably because he wants to behave right now in front of her. 

“Why’d you do it?” He murmurs as he fiddles with the bunny’s ear while Sayomi continues to play with it. 

“Guess I was scared of your reaction,” you begin to pick at your cuticles— a bad habit that should’ve been dropped a long time ago. “Thought you’d make me get an abortion or something.”

“That wasn’t for you to decide.” He sighs, surprised that you thought that low of him. He wasn’t around a lot, but he was nice to you when he was. Not once did he ever raise his voice at you, never snapped at you. Even when he was ordering food delivery, he'd let you pick-- every single time. “It wasn’t for me to decide whether you wanted to keep her or not either.” 

“I know.” You sigh, leaning back out the couch and giving yourself a moment. “I was scared.” 

“You said that already.” He looks down at the kid then back up at you, unsure if he should just feel thankful that he’s here now or if he should just continue to be pissed. “That’ll never be a good enough answer for me.”

“For what it’s worth, it was something I’ve always regretted after giving birth to her.”

He only hums in response to that, trying his best to hold his tongue because it’s hard to believe. If you truly did regret it, you would’ve reached out to him. He’s convinced you would’ve gone the rest of your life without telling him. “Are you gonna let me be in her life now or am I gonna have to fight you over that too?”

“What does being in her life look like to you?”

“I dunno.” He shrugs, taking the time to think it through. He works a lot, travels a lot, parties a lot. “We’re technically neighbors, so how about I just start coming over to see her for now. I’ll figure the rest out later.”

“We can do that.” You cautiously say. 

Hopefully he keeps it fair, he has the upper hand already by being the good guy for once.

a/n: soooo do we think sukuna's gonna be a good boy?

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