BFB! BFB! My Best Friend's Brother!
♫ BFB! BFB! Best friend's brother! My best friend's brother! ♫
Your best friend Yuji is the sweetest guy ever. The day the snot-nosed, missing-toothed, bubbly kid pulled you off the swing to play hide and seek was the day the two of you became inseparable. Complete opposite of his older brother, Sukuna. He was the kid that pulled your hair, pushed Yuji into the dirt, and chased you two around with spiders and centipedes. Yeah, he picked on y'all. But he didn't allow anyone else to touch bother you. He was the only one that was allowed to make you cry.
♫ Punk rock drummer and he's six-foot-three! ♫
You see the way he stares you down, waiting for you to come to him. He knows that stupid secret crush you've had on him since childhood is still there, buried deep down inside. He wanted to reach it. And he knows you want him, too.
♫ BFB! BFB! Best friend's brother! My best friend's brother! ♫
You shouldn't. You really shouldn't; but when the party's too loud, and you're too overwhelmed, Sukuna's ajar door feels like an open invitation. (Especially since he's never left it open before.) Man, you really hope Yuji doesn't hate you after this.
♫ BFB! BFB! My best friend's brother is the one for me! ♫
BestFriend'sBrother!Sukuna x Yuji'sBestFriend!Reader
cw: modernAU, BestFriend!Yuji mention, childhood friends, childhood crush, BlackFem!Reader, Sukuna was a bully (still is, kinda), 18+ mature content, house party, mention of drugs and alcohol, size difference (Sukuna is 6'3"), Sukuna’s a drummer— he has HELLA piercings, AND he dyed his hair black, sloppy kissing, teasing, p in v, sneaky sx, unprotected (bc why would a condom be here?), mean/rough sx, manhandling, slight praise/degradation (like i said, Sukuna's MEAN), pet names (literally), creamp!e, pørn with plot (what plot fr?), prolly missed a few - sorry! wc: 4.4k
art on the left by @/aoooo_333 on X (twitter) art on the right by @/kcokaine_ on X (twitter) go support them!
“So you’re coming to the party, right?”
Yuji’s big, vibrant smile was blinding and only amplified your pounding, aching headache.
“Ughhh.” You rest your forehead on the table, eyes squeezed shut. “Yuji, please. Too loud.”
You turned your head slightly, peeking up at your pouting best friend. “We just went to a party last night.”
“Yeah, but this one’s for Sukuna’s band!” He pulled you up, much to your dismay. You slouched in his arms and he huffed. “Come on, you can’t be that hungover.”
“Are you not?” You rubbed your head. “Like seriously, you drank enough to kill a horse.”
“And got right back up!” He grinned proudly, grabbing your wrist and pulling you up, dragging you behind him. “Grab your clothes, shoes, that bag with all your hair stuff in it, and let’s go! You can shower at mine.”
“Noooo.”, you grumbled. “I don’t even care about Sukuna and his stupid band.”
“Don’t be like that! He’s not that bad, and you haven’t seen him in forever.”
“Yeah, on purpose.”, you mumbled under your breath.
You haven’t seen Sukuna in a hot minute, now that you think about it. It wasn’t actually on purpose, but you also didn’t go out of your way to talk to him either.
He always annoyed you; pulling your braids, flicking your forehead, teasing you, and just overall thinking he’s better than you and Yuji simply because he’s older.
When he turned 16, he became a moody, emo teen that wanted nothing to do with his annoying ass brother and his even more annoying ass friend.
He stopped talking to you, only occasionally talked to Yuji, refused to be seen in public with you both; and anytime you were over at Yuji’s, he’d either be gone or locked in his room blasting music.
He got multiple piercings, got gauges, painted his nails dark red; he even dyed his hair black! Anything to distinguish himself from his brother.
When he turned 18, you really never saw him. He spent the summer forming a rock band called Cursed (corny) and quickly gained popularity. He was never home, and when summer ended, he left for college.
Now you and Yuji are freshmen in the same damn college as Sukuna because of course Yuji wanted to go to the same school as his big brother! And, of course you were coming with him! How could you say no to that face?
Sukuna was a junior, so you didn’t see him much on campus. He and Yuji had a place near the college and although you were over there more often than you were at your dorm, you still never saw him.
You guessed that luck was on your side, but part of you felt like he was avoiding you. Like, more than just the “you’re my brother’s annoying friend” thing.
You knew Sukuna didn’t like you, and you didn’t like him, but now you’re thinking he hates you. And for what? You never did nothing to him. You even tried to be nice.
Whatever. Thinking about it irritates you, so you brush it off. It doesn’t matter anyway; you and Sukuna aren’t friends and if you asked him, he’d say you never were.
He was just your babysitter, forced to watch and make sure Yuji’s reckless ass didn’t get himself killed and your foolish ass didn’t follow right behind him.
He stayed around until he felt like you two could take care of yourselves, and now he was finally free to do whatever he wanted without two annoying brats following after him.
But he should’ve known Yuji would follow him to college and you’d follow Yuji, because of course you would.
At least he didn’t have to see you often. Ignoring you when you’re at his house and steering clear of you on campus helps.
“No! Put the cups over there, Yuji!” You ordered with exasperation. This “finish helping” shit turned into you doing most of the work on a barely set up party (Yuji you fuckin’ liar) for a rude ass bastard that you haven’t talked to in years.
He stacked the red solo cups on the counter and dragged in a cooler from the garage. “Drinks? Set. Cups? Set. Pizza?”
He opened the top box of the huge stack of pizzas on the table, stealing two slices and shoving them in his mouth. “Set!”
You flopped down on the couch with a sigh, arm thrown over your eyes. Yuji flopped down beside you and rubbed his sweaty forehead on your arm, and you shoved him away. “Gross! Go away, nasty.”
He chuckled and laid down in your lap, making himself comfortable with a big grin on his face while you pout. His eyes fluttered shut before shooting open in panic.
“Oh shit!”, he quickly jumped up, pulling his shoes on. “I forgot the beer!”
“Huh?”, you looked up at him, brows furrowed in confusion. “We’ve got beer and liquor. What are you talking about?”
“No! I forgot to get Sukuna’s favorite beer!” He snatched the keys off the counter and darted towards the door. “The party’s gonna start soon! I gotta go!”
Before the door shut behind him, he said “He’s already here, so be nice!”
Slam! And he was gone. You let out an annoyed sigh. He literally planned this shit for his brother and somehow managed to forget his favorite beer?? He barely even helped you set up this stupid party he planned!
And leaving you alone with Sukuna is crazy— he’s practically a stranger now.
Ooh, if Yuji wasn’t your friend…
You begrudgingly pulled yourself off the couch (not without ranting and raving to yourself) and grabbed your bags, making your way down the hall to the bathroom.
The door handle was snatched from your hand as soon as you touched it, and you were slapped with a cloud of hot, blurring steam and disbelief.
Because you could not believe the man standing before you was Sukuna, the same Sukuna you grew up with.
He was so much taller than you remember; his frame took over the entire bathroom entrance, and he towered over you (even more now that you two are older).
His arms were ridiculously muscular, and you didn’t doubt that was from all that drumming he does. Dark tattoos itched into the skin and ran up, branding his shoulders and the back of his neck.
Your eyes trailed down the tattoos adorning his chest, down his toned abs, and lined his very exposed v-line. You swallowed the lump in your throat when the light gleamed against jewelry on his chest; fucking nipple rings? Damn.
The white towel hung low on his hips, giving you a nice view of a dark pink happy trail down his stomach; the only pink that survived his edgy rebrand. That towel did nothing to hide his long, thick bulge and you swear you saw it move.
Sukuna cleared his throat. “Eyes up here, brat.”
You ripped your gaze away from his nearly naked body, meeting his crimson red eyes. He peered down at you, large hand drying his dripping hair with a towel, and he once again catches you staring.
More like gawking at how fucking attractive different he looked. Jawline so sharp you were afraid it’d cut you, and rugged features that made Yuji’s face look boyish.
Shiny lip ring in the middle of his bottom lip, hoop in his left nostril, spiky jewelry in his eyebrow and littering his ears, and dark tattoos carved into his skin, lining his features so well you’d think the man was born with them.
And that voice; you don’t get why he chooses to be a drummer when his voice is this fucking hot. Your thighs squeezed together— why did you like it when he called you that?
He looked- fuck. Why is he so fine?! And why is it digging up old, stupid feelings you had about him?! It was a dumb, childish crush that you distinguished a long time ago!
“I- um.”, you pried your eyes away, cheeks burning. “Sorry.”
“Hm.” He stepped forward, invading your space, and you stumbled, back hitting the wall. “For what? Breaking into my bathroom?”
He caged you in, beefy arms and large hands on the wall by your head, and his warm breath fanned your face. “Or for shamelessly eye-fucking me?”
Your eyes widened and your face burned hotter, but you hid it all with a glare and a scoff. “Boy please. I’m just tryna take a shower.”
“Yeah?” He chuckled, stepping closer. Steam rolled off his muscles; droplets dripped down his skin and nearly soaked you. “Maybe I can help.”
His hand wrapped around your chin and tilted your head up. “You look good.” he breathed, nose brushing your neck. “Real good.”
You gasped, breath hitched; his body heat engulfed and nearly suffocated you. His scent drowned your senses, and his touch made your head fuzzy.
He pressed against you, still-dripping body wetting the front of your clothes as his leg pushes between your thighs, just falling short of brushing your clothed, needy cunt.
His cock jerked against the towel, wanting free. You felt it throb against you, and your thighs instinctively tightened around his leg, pulling him impossibly closer.
His rough fingertips traced along your collarbone, skin tingling with every inch explored; he trailed down your cleavage painstakingly slow, tip of his finger hooking the front of your top, slowly pulling down, until—
“I’ve returned with the goods!” Yuji announced as he busted through the door, grocery bags stuffed under his arms.
As soon as it had started, it ended; you were left leaning against the wall with trembling legs, gasping.
Yuji was oblivious to it all, beelining straight to the kitchen, and Sukuna was nowhere to be seen.
You rushed into the bathroom, door slamming behind you, and you finally get the chance to breathe and think—
What the fuck was that?!
Did Sukuna seriously want you like that? Or is he just fucking with you? Some brutal, nasty prank that you wouldn’t put it past him to do.
Why else would he leave you high and dry like that in the hallway?
“Fuckin’ prick.”, you muttered to yourself, starting the shower.
Taking a deep breath, you stared at yourself in the mirror, genuinely astounded by the way you reacted to his touch.
Like, why the fuck were you gawking at the man? Literally staring through him; you’re disgusted to admit he was right, you were eye-fucking him shamelessly, just as he said.
Then you apologized, so you admitted guilt right in front of him, and then he completely threw you off with the touching.
You gulped, cheeks heating at the memory. You didn’t stop him; in fact, you wanted more, and he knew that. He barely touched you, and yet…
You’re standing here soaked; arousal pooling in your panties, from just a touch.
You grimaced, mad at yourself for getting wet for him and mad at him for making you this wet.
You muttered another “fuckin’ prick” as you stripped down, wrapped your hair and stepped into the shower, long sigh escaping your lips as you melt under the shower water.
Washing away all of that, you towel off, moisturize from head to toe and layer your perfume before dressing yourself in a cute mini jean skirt and brown long-sleeved top with a tied bow that sat under your breasts and a deep v-cut that showed off your cleavage.
You pull the black flower patterned lace stockings up your thighs and slip into the cute little mary-jane style heels you bought last weekend before standing straight and admiring the way you look.
Round ass barely covered by a mini skirt and top that hugs your body and pushes your tits together, sitting perfectly.
Your legs look good in these heels, supple thighs squished together in the skirt, and you swirl in the mirror for a full view.
You grinned, fixing your hair and applying your lashes; you gloss your lips just in time for the party, voices flooding the house.
You wonder if Sukuna will avoid you here, or try something again. Avoiding you might be hard, you’ll both be at the party so you’re bound to run into each other. Trying again might be even harder, since you’ll be with Yuji for most of the time.
Either way, you expel Sukuna from your mind as you leave the bathroom, drop your bags on Yuji’s bed, and head to the lively living room to join the party.
Music rattled the walls; living room, dining room, and kitchen filled with fans, friends, and randoms you’ve never seen before. Four pizzas were already consumed, boxes scattered across the kitchen island.
Drinks were passed around; you grimace at the shot of bacardi given to you. Finding Yuji over by the drinks, you poke his side and he giggles, turning to you.
“Hey bestie!”, he exclaimed over the music. “You look amazing!” His grin widened as he looked you up and down. “Are those the shoes we found at the mall last week?”
“They are!”, you grinned back. “Wouldn’t have found them without you; you definitely got a taste for fashion.”
“Duh.”, he poured someone a drink before turning back to you. “Look at this drip; don’t deny I’m fresh as fuck.”
You busted out into laughter, clutching your stomach. “Yuji please stop talkin’ like that, oh my god.”
“Now before you start hating, ask yourself.”, he twirled. “Be honest. Ain’t I clean though?”
You laughed even harder, shoving him playfully. “Alright, alright culture vulture. Yes, you clean as fuck bestie. Now, please pour me some vodka. Bacardi is for big girls.”
He grabbed a big bottle of Grey Goose, filling a cup and passing it to you. Taking your bacardi shot, he downed it with no reaction. “Ahhh.”, he said dramatically, licking his lips. “Can’t hang with the big dog, huh?”
“Oh please.”, you roll your eyes, downing your shot and grimacing. “You ain’t no big dog, Yuji. You are the softest puppy I’ve never seen. Now pour me another.”
Yuji stuck his tongue out at you for your insult, but poured you another shot anyway.
“Yay!”, you cheered happily, taking your cup and giving Yuji a smooch on the cheek. “Thank you bestie, I love you!”
“Mhm.”, he playfully shoved you, smile breaking through his pout.
You grab his hand. “Don’t be a stick in the mud; come dance with me!”
“Can’t.”, he huffed. “Gotta man the drink station and make sure no one takes whole bottles, like last time.”
“Ugh.” You pout. “Fine. I’ll dance for the both of us!”
“Yes bestie!” he clapped. “That’s my bestie! That’s my bestie!”
You roll your eyes, grinning as you make your way through the sweaty bodies filling the room.
You didn’t recognize most of the people here, they looked to be mostly upperclassmen. You knew a few people though; Yuji’s friend group was here, Nobara peer-pressuring Megumi to chug his drink and Maki adding on.
Then it’s them— Sukuna and his band taking up the entire couch. He was dead smack in the middle, drink in one hand and blunt in the other, manspreading and staring you down with no shame.
His lead guitarist, Choso, sat to his left hunched over a rolling tray, blunt tucked between his fingers and a lit one between his lips. His other guitarist, Suguru, wore a scowl on his face as he helped lead singer, Satoru to his feet, blue-eyed menace completely drunk off his ass.
You heard Satoru is a total lightweight; even with the friend group he has, he could never hold his liquor, often passing out before the party really starts.
Suguru nudged Sukuna, muttering something along the lines of “taking this jackass home” and threw Satoru’s arm over his shoulders, dragging the inebriated man towards the door.
Choso handed Sukuna the freshly rolled blunt he was working on before standing up and dusting the excess leaves off his jeans.
“Gotta go find Yuki.” He said before dapping Sukuna up and disappearing into the crowd of people.
Sukuna scoffed, tucking the un-lit blunt behind his ear and made his way towards the kitchen. He downed his drink, crumbling the flimsy cup in his hand and chucking it into the trash can before snatching a bottle from Yuji’s hands.
Yuji furrowed his brows, opening his mouth to protest but Sukuna cut it short, shoving his younger brother into the counter before turning on his heel.
“Ass.”, Yuji grumbled under his breath, glaring at his brother’s back as he walked away.
Sukuna took a swig of the strong liquor, adam’s apple bobbing as he swallows. You hadn’t even noticed you were staring at him from across the room until his eyes met yours, and he slowly and seductively licked his pierced bottom lip.
He made his way down the hall to his bedroom, holding your gaze as he looked over his shoulder before disappearing into the dark room, door left ajar.
You shifted on your feet. The way his eyes bore into yours, like he expected you to follow him, had you feeling hot.
This was the first time you’ve ever seen his bedroom door open before— did he do that for you?
Your feet were leading you towards his room before you could even realize. Your skin burned hot and your legs felt weak.
You wanted to blame it all on the alcohol, you really did, but the heat building up inside you was caused by one person and one person only.
So here you are— standing at his door, hand trembling as it reaches for the doorknob, plump bottom lip sucked between your teeth and liquor in your system giving you liquid courage. You hope that Yuji never finds out about this.
Your fingertips grazed the cold metal, and you were yanked into the dimly lit room, door slammed shut behind you.
Large hands spun you around, pinning your chest to the door, tight grip on your hips as warm breath fanned your cheek.
“Back for more, huh?” He murmured, teeth grazing your soft skin. His hand trailed up your body, fingertips teasing your clothed chest before a click is heard in the quiet room.
“Won’t be stopped this time.” He jiggled the door handle and you gulped.
Too late to back out now.
You huffed quietly. “Why’d you touch me like that earlier?”
“Why not?” He murmured against your neck, cold metal of his piercing making you shiver. “Looked like you wanted it— wanted me. Bad.”
You did, but you didn’t want to admit it.
“That’s not true.” You protested, voice weaker than you wanted. “I’d never want you— I hate you.”
“Yeah?” He chuckled lowly. “I hate you too.” He pulled your hips back, shamelessly grinding against your ass. “So much. Lemme show you.”
He licked a strip up your neck, nipping at the flesh before his hand comes up and wraps around your throat, not choking but holding you in place.
“Hate the way you walk.” You gasp as he swiftly unties the front of your shirt with one hand.
“The way you talk.” He squeezes your breast roughly and you bite back a moan.
“Hate the way you dress.” He pinches your nipple, twisting it between his fingers and this time you do moan.
“Hate those big ass eyes of yours.” He slides your top down your arms a little, biting your shoulder.
“But ya know what I hate the most about you?” He turns you around, back pinned against the door. His crimson eyes bore into you, and your breath hitches when you see the pure hatred in them.
“I fuckin’ hate how you follow that idiot around like a lost puppy.” He spit, lips crashing into yours as he lifts you off your feet, pushing you into the wood hard enough for you to whimper.
“Can’t ever get your attention.” He huffs out, nipping your lip.
“Can’t ever get you alone.” His large hands cup your ass, wrapping your thighs around him.
Your clothed cunt smashes against his hard bulge and you whine, squirming in his grasp. “Could’ve been my pet instead, but you’re so fuckin’ blind— couldn’t see how much I wanted you.”
He bit your neck harshly, sure to leave a mark for everyone to see. “But- mph! -you’re my best friend’s brother.”
“So the fuck what.” He growled, littering any exposed skin his lips could find with bites.
“ah!- Sukuna!” He bit down too hard and you slapped at him. “It- it’s not right. To Yuji.”
Sukuna scoffed against your skin, kissing the freshest mark he left before saying:
“Guess ya better make sure he doesn’t find out, huh?”
Then his fingers pulled your soaked panties to the side, and he pressed his aching, reddened tip against your sopping hole.
You barely had time to register what was happening before he was sinking you down on his ridiculously fat cock. You gasped and clawed at him as each inch slowly makes itself home in your needy cunt.
“a-ah! Fuck Sukuna— wait!” You whimpered, eyes tearing up. “It’s too much! ugh- I can’t!”
“Can’t?” He leaned back slightly, slimy wet cunt swallowing his cock on full view for you to see. “Already took most of it.”
He shifted, large hands gripping the back of your thighs, pushing them against your chest. “What’s a few more inches?”
The new angle had you feeling exposed and vulnerable, and completely helpless in his grasp. “W-Wait!”
With one hard thrust, he bottomed out with a groan and you choked, twitching and writhing in his hold.
God, you’ve never taken a dick this big before. Fuck being in your guts, you felt like he was in your fucking lungs; you were struggling to catch your breath, struggling to stay together, really.
You could feel everything— every long inch, every fat vein down his thick shaft, could feel his tip fight against your cervix, wanting to pass the tight ring. You could feel his heavy balls resting against your ass, could feel every time his cock twitched, and god, the way his happy trail rubbed against your clit juuust right.
Oh, you’re a goner.
Sukuna tapped at your cheek and your eyes fluttered open, glossy and wet with tears.
“Awh, cute.” He teased, smirking down at you. “You’re lookin’ at me with those big, pretty eyes. Finally.”
He pulled out, tip kissing your quivering hole gingerly before slamming back in all the way, until his tip is kissing your cervix. Again, and again, and again, until you cried out his name.
“Sukuna~! More! hah- Feels so good~!”
And each cry spurred him on more, encouraged him to fuck you harder, to hit that squishy spongy spot deep inside you that has you wailing.
“This what you wanted, right? To be split open on my cock?”
Your pussy was absolutely perfect— he loved how you could take a pounding. Every hard thrust is rewarded with a tight squeeze, and you sure loved to squeeze him when he’s all the way in. The way your cunt tightens around the base of his cock has him going mad.
“Yeah, keep squeezin’ me like that. Good girl.”
And you’re so fucking wet. Like a never ending waterfall— you drenched his pants and his cock and his balls and maybe even the floor under you, and he fucking loved it.
“Makin’ a mess all over me pretty girl. Keep going, keep soakin’ me.”
Loved how well you managed to take him, too. He’s not small, he knows that, and you are small, and he also knows that. So imagine his surprise when your cunt stretches to fit him.
“I’ll make sure this pretty pussy never forgets me.”
God, he fucking hates you and your slutty cunt.
“Quiet down, brat.” He poked maliciously, pelvis slamming into the fat of your ass.
The door shook behind you, and you hoped the music out there was louder than you are. “Want your best friend to hear you fuckin’ his brother?”
“No! I- ”, you tried to muffle your moans, but each thrust had you seeing stars. “I can’t! nghh- Sukunaaa~!”
You spasmed around him and he nearly came from the pressure. Your cunt is really something else, squeezing him like you wanted this more than he did.
He pushed your skirt up your tummy, fat thumb rubbing your neglected clit. You wiggle in his hold, not sure if you’re trying to escape his touch or melt into it.
“Gonna cum for me, pup?” Sukuna groaned, nipping at your cheek. His cock throbbed uncontrollably inside you; he was close too.
“oh fuck-“ You gripped the back of his hair, pulling him into a needy desperate kiss. “mmph yes kuna- so good.”
He growled against your lips, biting and even drawing little blood as his pace increases, his need to cum taking over his senses.
God, you just make him so fucking hard and he’s so fucking mad it took you this long to notice— to fucking see him.
That stupid ass crush you had on him? He had one on you, too, but you only saw him as Yuji’s brother and nothing more. So in turn, he only saw you as Yuji’s best friend.
But he wanted more.
“Fuckin’-“ he growled, shoving his pierced tongue into your mouth, battling your tongue for dominance and winning. “-mine now. Say it.”
“oh! yours kuna~! i’m yours~” You moan against his lips. “I-“
You clamp down around him, sucking him in as you cream all over his cock.
“Fuck yes-“ he groaned against your lips as he explodes inside you, painting your quivering walls white.
He didn’t stop rutting into you, lips devouring yours as he chases the feeling, overstimulation be damned. He’s never came this hard and it’s never felt this good; he’s surely addicted to you now.
“Kuna~” you whimpered against his lips, pulling him from his lust-filled trance. “No more.”
“Fine.” He huffed softly, slowly dragging his softening cock out of you. A quiet groan slipped past his lips at the sight of his cum dripping between your legs, coating your thighs.
“Oh, I almost forgot.”
You felt a thin, cold leather collar wrap and your throat and heard the click of a lock. He turned you towards the floor length mirror in the corner of the room, grinning at the way your eyes widen in horror.
A black leather collar, with a golden heart lock engraved with an ‘S’.
“You’re my puppy now.”
://an//: real talk y'all, i didn't think i was gonna finish this lmao
@audiblez 2025