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writingouthere · 3 months

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bestfriendsbrother!Sukuna x pregnant!reader one-shot

summary: you're excited to finally share with all your friends that your pregnant when the party is interrupted by your best friend's older brother, who you didn't invite, but who you did have unprotected sex with less than two months ago.

cw: reader is pregnant, Sukuna is a bad dude, possessive behavior, minor smut, still as usual nicer than it sounds because I can't help it.

**************

"I'm pregnant!"

Your news is met with a period of silence before your friends look at each other, uncertain as to how to react.

Nobara finally breaks the silence, an eyebrow raised. "And we feel...."

"We're happy about it," you say and your friends are then quick to congratulate you. You hear some sort of scuffling happening behind you and you turn around to see Yuuji unfolding a "We're having a Baby!" banner which makes Megumi nearly jump out of his chair.

"Holy shit, did you two-"

"No!"

"Ew, no!"

Yuuji frowns at you. "The 'ew' wasn't necessary."

You and Nobara scoff. "It was," you tell him. "And I say that with all my love."

"Okay, so if this idiot didn't knock you up-"

"Hey!"

"-then who did?"

You'd been expecting the question and had prepared for it. "It was just a one night stand, he's not really father material." Everyone looks like they want to ask more questions so you smile at them, genuinely happy they all look ready to commit a crime for you. "It's okay, I have a good job and this is something I've wanted for a long time. This baby will be really loved because it will have me and, I hope, all of you."

Your friends are quick to agree and there's some lighter questions about potential names, nurseries and Nobara and Todo are looking at her phone debating baby onesies, when the door to you and Yuuji's apartment opens and someone you had definitely not invited comes in.

"Sukuna! You're late, you missed the big news," Yuuji calls out as he walks over and claps his brother on the back. A few people call out greetings as Yuuji's older brother looks around the apartment. His eyes linger on you for a second, a smirk tugging up on his lip before he notices the sign hanging crooked over the kitchen doorway and he laughs without an ounce of humor.

"You've gotta be fucking kidding me, you knocked someone up? You irresponsible piece of shit-"

"It's not his and don't kill him, you asshole," Megumi says from where he has now joined the onesies discussion and points over at you. "It's the other person who lives here."

Sukuna pauses from where he was about to murder his brother, to look back over at you. You wonder if his brain is doing the same cursed math that you had done when you were hyperventilating, holding a stick covered in your own pee, but before he could ask anything, Maki ended the silent stand off.

"And we're happy about it, so get happy you piece of shit."

With that, the party continues on, people breaking off until little groups and snacks being placed strategically throughout the apartment.

You're feeling thirsty, and a little exhausted from the burning stare that's been directed at you for the past hour when you excuse yourself from where Miwa and Mechamaru had been talking about their own future plans for children, who you're sure would be socially inept but gorgeous enough to make up for it, and made your way to the kitchen.

You were pulling out some water, no alcohol for you even though you really needed it, when you felt someone's presence behind you.

"So when were you going to tell me we were having a baby?"

"Never, because it's not yours," you answered firmly, slamming the door to the fridge for good measure. Sukuna leaned against the cabinet next to you but you'd known him long enough to see the pose for what it was. A ruse, a performance of casualness. The fingers on his hand tapped against his arm like he was playing the piano, one of the few tics he had that showed when he was feeling, well just feeling anything in general.

"Oh please, you're not fucking anyone else."

"You don't know that and we're not fucking, we fucked once. Singular, past tense."

He laughed and looked down at you, the same predatory look he'd had the night he'd helped you make this child.

"And once was all it took huh? Fucked you so good, you're going to have my baby," he says, voice mocking and he stands up to his full height which puts him over you. He takes the glass of water you're really regretting now, and places it on the counter opposite the two of you.

"It-it's not your baby," but you don't sound sure and he knows it and he presses up against you until your back is to the counter. Nowhere for you to run.

"It's mine, just like you're mine. I don't know who you think you're kidding with this denial of me but it's done now, sweetheart."

You go to answer him and Sukuna covers your mouth with his hand like the rude fuck he is and then leans down, his mouth next to your ear. You look around, worried someone might see you but the gap between the fridge and the counter conceals you both and the room next to you keeps getting louder and louder. The sun had set and there were maybe some lamps in the living room, but here in the kitchen it was dark.

"I let you have your space and your time, two months of it actually. I let you have your little moral crisis about fucking a criminal and it being the best dick you've ever had wah wah, but I was impatient before I knew you were having my baby, and now," he leans back so his eyes, and they're on fire his eyes, are level with yours. "I'm done waiting."

You tug on Sukuna's hand and he rolls his eyes before removing it from your mouth and places it on your hip which doesn't seem like a good trade-off but at least you can speak again.

"What does that even mean?" You ask him, your voice showing the incredulity you're feeling but if Sukuna had anything, it was audacity.

"I mean I'll give you a week to tell your friends you're having our baby and that we're getting married." He says it so seriously that you can't help but laugh which seems to be the wrong response when his other hand moves to your hip as well and squeezes, tight.

"We are not getting married, are you out of your mind?"

"Why not, we're already having a baby, are you going to deny me the ability to live with my own child."

"Still not your kid, and we can't get married Sukuna. We never even dated! We fucked one time, that doesn't mean we should just be together forever."

"We fucked for one night, it was more than one time-"

"Not the argument you think it is," you interrupt him but you still let him pick you up and place you on the counter. You sit there while he runs his hands up and down your thighs, the sounds of the party washing over the two of you as you stay in your little bubble.

"We'd be good together," he finally says. "Not just because I knocked you up on the first try." You hit him but he just smirks and moves his hands more purposefully on your legs. You let him pull them apart and step between them even though warning bells are going off in your head, telling you these are moves you'd seen before and they had led to you being in the predicament the two of you were debating in the first place.

"It's inevitable, the two of us. You can say you hate me, or that I'm not a good man, and that's true. But there's a reason why you've never stayed with any of those nice boys," he says and his hands slips up the skirt you're wearing to get at your bare thighs underneath. "Because you don't want a nice guy, you don't want a good man, you want me and I'm too selfish to let you keep torturing both of us by doing this pretending shit."

The fingers on his right hand press against your cunt through your panties while his other hand squeezes your thigh and he moans sinfully into the quiet air.

"God, I knew I didn't make up this warm, wet cunt. Been fucking my fist until I chafed the past two months just thinking about it."

You whimper as he moves your underwear aside and slips one finger up and down your slit, not touching your clit or going where you want him, but doing enough that you move against his hand.

"This does not mean that we should get married," you protest and he teases a finger against your opening, pulling it back when your hips tilt up in an attempt to get him where you want.

"Why not? I heard pregnant women get super horny, what are you going to do without me around to make sure this filthy pussy gets stuffed just the way she needs." He finally slips one finger in, his thumb moving to tease against your clit, just the way you like it and your head smacks back against the cabinet. He moves the hand that had been on your thigh up so he can cradle your head.

"I'm sure I could find someone willing to help me out," you say scoffing and his hand freezes which makes you whine a little and try to get him to move again but his legs limit your range of motion.

"You ever try to fuck someone else ever again and the coroner is going to have to get dental records to figure out who the dumb fuck with no fingers, no eyes and no cock is, you got it?"

He's not joking, you know he's not joking but it doesn't stop you from leaning forward until you finally get your lips on his. He hums into your kiss, cupping your cheek in his free hand while the other one goes back to opening you up. You're so wet that the kitchen fills with the sounds of his him finger fucking your cunt but you can't even find it in yourself to be embarrassed. He's not wrong that pregnancy has made you more sensitive, or maybe it's just you not having gotten laid since the two of you had slept together.

He's got three fingers in you when you come and he swallows your moans greedily with mouth while his fingers slow inside of you, curving just right to make you think you could probably come again soon, oversensitive or not.

Before you can test that out, he pulls away from you. He licks the fingers he pulled out of you clean and you you're reminded of how the last time he'd made you come twice just with his mouth.

"Where are you going?" you ask him, a little more breathless than you like.

"We are going home," he tells you, grabbing your hands and helping you down off the counter. Giving you a kiss on your forehead that you would tease him for if you were anyone else.

"Home?" you ask, confused because you are currently standing in your apartment unless his orgasms suddenly give one the power to teleport.

"Yeah, our home, not the shitty apartment you share with my brother. I mean we'll have to get somewhere bigger soon, for our baby."

For the first time since you found out you were pregnant, someone who was not you laid out their palm on your still just the same stomach. There was no change from how it always looked but Sukuna looked smug just the same and you felt like you were still missing a few things.

"What-"

"I mean I can fuck you here, I just thought your sensibilities and the fact your friends were all out there would make you uncomfortable."

Your post orgasm flush finally leaves you and you look up at him in panic. "Oh my god, do you think someone saw-"

"It's okay, Fushiguro kept them out I'm sure."

You don't want to know but ask anyway. "Why?"

"Because he walked in earlier and looked like he'd seen a ghost. Tell me, is the kid still a virgin? He's pretty but I can't imagine he has a lot of good options in your crowd."

When you leave to go to Sukuna's, the only people who don't look confused(or horrified in Yuuji's case) at your departure are Maki and Megumi.

If the confusion hadn't been cleared up by the time the baby came, the pink hair probably answered any follow up questions.

dealing with some writer's block and had this idea. didn't feel like writing a whole smut scene, my b but saving that energy for the next(?) neighborsukuna x singlemom one.

side note: Megumi is scarred for life, for sure. Yuuji gets over his horror once he's an uncle.

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