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Sasuke had thought the offer was innocent.
When Naruto had asked Sasuke to move in, he figured he did it for the following reasons.
One, the jinchuriki was lonely. Having had Sasuke finally accept their friendship, he must have thought this was an opportunity for the Uchiha and him to get closer. Not a bad idea; it’s not like Sasuke was against the action of getting to know Naruto more.
Two, Naruto wanted to monitor Sasuke to make sure he doesn’t leave the village in the middle of the night again. The thought to him must surely be traumatic, considering he was not around for the first time he decided to pack up his things. Sasuke is sure he's not going anywhere.
Despite it all, he sometimes regrets this decision to live with the blond, though.
One of the reasons is, he's messy - not that Sasuke was particularly surprised when he dragged his stuff inside Naruto’s apartment to find that the entire place was a dump.
Empty ramen cups, discarded dirty clothes, broken chopsticks. It was like a hurricane came through and no one bothered to clean up the damage. Sasuke was not necessarily a clean freak, but he'd rather not eat his meals in the same location as his dirty laundry. He doesn't know how Naruto does it, but the raven will change him.
Or at least; Sasuke tried.
Over a few weeks, Sasuke had turned into Naruto's maid. He had tried to give him a few simple chores, but in the end, Naruto neglected them and it was much faster for Sasuke to just do them himself. He also didn’t particularly enjoy arguing with the jinchuriki about dirty dishes. As soon as Sasuke pinned the house duties on himself, the place was nearly always clean. He still scolds Naruto if he doesn't pick up after himself, but even Sasuke knows that his words go in one ear and out the other.
Their friendship was growing closer for sure, but Sasuke didn't know that eventually, it would lead to more.
If the two only knew how much sexual tension they had had since the start of their relationship; maybe they wouldn’t have moved in together.
When they were kids, he and Naruto had shared more accidental kisses than Sasuke would like to admit. The days they were tied together at the hand resulted in seeing each other naked a lot more than they wanted - but this only further proved that the two weren’t strangers to the concept of sex, privacy, and things like that.
Hell, some would even say it was fate for them to be together.
Sasuke was the moon and Naruto was the sun - so it was inevitable that the two would gain feelings for one another. Maybe it was obvious from the beginning, with Naruto chasing Sasuke for the sake of "friendship."
Truly deep down, he had a crush and the very reason that Sasuke had left the village was that he was scared of the strong urge to always be near Naruto. All in all, the sexual tension was always there… and it's there in their home.
It lingered in the air when they argued about whose turn it was to make the bed - (Naruto would kill to say, "You and I could mess the covers up more if you want."). When they argued about who would wash the dishes (Sasuke wouldn't mind doing them if Naruto was fucking him from behind), and whose turn it was to take out Sasuke's hawk, Garuda. (Damn bird is much like a dog, with more favoritism for Naruto and that drives Sasuke nuts.)
It was also there when either boy got out of the shower. Maybe it was because Naruto's a pervert; and he can't keep his eyes off Sasuke's waist as he walks from the bathroom, down the hall to their shared bedroom. Sasuke can feel his gaze, but doesn't comment on it nor blame him because it all must be Jiraiya's fault. That pervy sensei must have taught everything he knows to Naruto, and now his student is just mimicking the actions he already knows how to do.
The sexual tension between them is at its all-time highest at night when they're laying in bed beside one another. It was nice to have someone to sleep with, both Naruto and Sasuke can admit to that. Sasuke enjoys being the little spoon, something that he would slit Naruto's throat for if he ever told anyone. On the other hand, being the big spoon, Naruto can safely admit that it's Sasuke's fault he can't get a proper night's rest.
Naruto finds it hard to sleep having Sasuke in his arms; he doesn't hate sleeping like this because it's most certainly better than cuddling his pillow, but cuddling with Sasuke has its cons. The Uchiha can't keep still, it wouldn't be a problem if Sasuke's ass wasn't pressed against Naruto's crotch. Every movement, every shift, creates friction right up against Naruto's clothed dick print. He has to close his eyes and mentally curse himself for making a habit of going to bed with nothing but his boxers on.
Trying to express some self-control, Naruto turns away from the raven; who doesn’t fail to notice the lack of arms holding him. In his sleep, Sasuke lets out a pitiful whimper that makes Naruto’s heart hurt. He turns back to him and brings his arms around Sasuke’s waist again; pulling him right back against his chest and that silences the Uchiha’s sleepy whines as quickly as they began. Naruto didn’t think trying to sleep without getting an erection would be this complicated.
He tries to hold himself together but Sasuke’s in nothing but his underwear; and Naruto’s fingers are twitching to touch things he probably shouldn’t. He gently rolls Sasuke around - hopefully, this change of angle will allow him enough relief to get some sleep. With Sasuke’s front now facing him, Naruto attempts to push the Uchiha further away by nudging his thigh between his legs. All that does is create friction between them as he pushes him backward - and Sasuke lets out a small moan in his sleep, grinding himself down on Naruto’s thigh.
Naruto’s cheeks turn a deep shade of red, “Hey, Sasuke? Are you awake?”
His voice comes out quiet and rough, but the rogue ninja is really out cold, and Naruto almost gets a nosebleed at the sight. Each roll of Sasuke’s hips has the jinchuriki biting back a gasp, and he’s pretty sure he can feel Sasuke’s erection forming behind the fabric of his underwear. He’s in the same boat; his cock is swelling in his boxers but he has to remind himself that he can’t do anything because Sasuke is going to be more than angry if he wakes up and finds out what Naruto did. He’ll scold him for hours, blame his pervy behavior on Jiraiya, and he’ll slap the shit out of him. Naruto shudders at the thought. Even with Sasuke’s one hand, Naruto knows it’ll hurt, and after his beatdown, Sasuke will more than likely begin sleeping on the couch. Naruto doesn’t want that to happen, but he also can’t help himself.
He’s already pushing his thigh up in time with Sasuke’s hips, giving in to his need to make the Uchiha feel good. Naruto knows he probably shouldn’t, but he starts running his hands over Sasuke’s bare chest, his breath hitching in his throat when his thumbs brush over his nipples.
Sasuke would make a hot girl, Naruto thinks to himself, and leave it to his perverted imagination to start fantasizing about that. His hands grope Sasuke’s chest a bit harder, two of his fingers drift to gently pinch the buds and he enjoys the little high-pitched moans that fall from Sasuke’s lips. It’s a miracle he isn’t waking and Naruto finds a smirk forming on his face.
He’s a slut, he’s always wanted me to touch him like this.
The thought excites Naruto further, almost entirely forgetting about his self-control. Maybe, just maybe, Naruto can manage to sleep with Sasuke and the other won’t ever come to realize it happened. It’ll be like a stealth mission.
“Sorry, Sasuke,” Naruto whispers, mostly to himself as he gently takes a hold of the elastic hugging his male friend's waist, “To be fair, you brought this upon yourself.”
Focusing chakra into his fingers, he rips the fabric apart so he can toss Sasuke’s clothing onto the floor and leave the raven in nothing. It’s not a surprise to see Sasuke’s naked body, Naruto’s used to it, he’s attracted to it. Every curve, every part of his body is practically begging Naruto to mark the skin and that’s exactly what he’ll do.
“I’ll be gentle, Sasuke,” He continues, and at this point, he knows he’s talking to himself. Naruto tucks his cock out of his underwear, letting it free as it stands proudly against his stomach from how aroused he is. The Uchiha is still sound asleep and Naruto takes one of his legs gently, hiking it up to his hip and slipping himself closer so he can guide the head of his cock to Sasuke’s entrance with his other hand.
It’s going to be tight - almost suffocating, and the thought of it has Naruto gasping out a moan. His hips buck up and attempt to push inside; and as predicted, Sasuke’s hole is not prepped at all so pushing in like this is squeezing Naruto tight in all the right ways. He has to hold back a groan, but around halfway down his shaft, Sasuke’s rim catches and doesn’t let the jinchuriki budge another inch. Glancing down at Sasuke’s face, there’s a pained expression there, his sleepy breathing uneven and Naruto almost reconsiders doing this.
“I’m sorry,” Naruto starts, but Sasuke interrupts him by letting out a whimper, and in his sleep, his body bucks itself down on Naruto’s dick, sucking another inch or two in without warning and it causes Naruto to swear under his breath. He’s so tight, he’s so tight, Naruto keeps going until his entire nine inches (he’s not the nine-tailed jinchuriki for no reason) is sheathed inside of Sasuke’s heat. Sasuke was a virgin, Naruto could feel it. The blond was too, but he’d deny it if Sasuke asked. Being inside of his closest friend, however, feeling Sasuke’s hot breath on his bare chest, knowing that the raven should be sound asleep and he technically is, is hot.
Naruto doesn’t move, savoring Sasuke’s twitching insides and he absentmindedly rubs his hand against the skin on his leg, the other running through the black strands of Sasuke’s hair. After a moment, Naruto slowly pulls his hips back, drawing his length out halfway before sinking right back into the other, testing the waters. The feeling was amazing, much better than Naruto’s right hand, and he carefully pulls back out just to do it all over again. Sasuke’s not waking and Naruto’s being as gentle as he can be, but the pleasure he’s feeling is like nothing he’s ever felt before. It’s taking everything in him not to ruin Sasuke completely.
He picks up the pace, mumbling something that sounds like “sorry” underneath his breath. Each thrust jolts Sasuke’s body a little and Naruto is starting to sweat- the exertion combined with the blankets; he’s panting hotly and grunting through this entire thing. The only noises Sasuke makes are occasional gasps and his hand, which is resting on Naruto’s chest, digs its fingers into his skin before they eventually relax again.
Naruto’s being left to his imagination, thinking about just how vocal and reactive Sasuke would be, should he be awake.
The vision of Sasuke on his back, vulnerable, his skin flushed as Naruto holds his legs apart and takes him over and over again. “F-fuck,” He stutters and so do his hips, and to make up for it, he thrusts up harder than before. The sound of skin slapping echoes and for a moment - Naruto hopes Sasuke will wake. When he’s balls deep, Naruto moves his hips in circles, stirring around Sasuke’s insides so he can stretch them out more, shaping them to take his cock with ease - should he do this again. (And he definitely will if he can get away with it.)
He’s not surprised when he feels Sasuke shift and the raven lets out a more audible moan followed by a quiet, “What the fuck-”
Naruto knows it’s over. He stills his hips, prepares an apology and an explanation in his head, an excuse maybe; all while he’s looking down at the other with a nervous grin on his face. He thought Sasuke would have his eyes activated, he was ready to face red glowing anger, but instead, he moans at the sight of Sasuke’s fucked out expression.
Sasuke’s jaw is slack, mouth a bit ajar and he looks up at Naruto with a small hum, “What the hell do you think you’re doing?”
“Y-you see, Sasuke, I- I can explain-”
Sasuke grunts and shifts his hips; and although there’s a lustful gaze somewhere in his tired, onyx eyes, Sasuke’s voice comes off as venomous when he whispers, “I’m waiting. It better be good.”
Naruto sweatdrops, his stomach is burning with the urge to release as he admits, “You move your ass too much in your sleep, teme! I had to do this!”
Before Sasuke can respond to that, Naruto is rolling over, getting onto his knees between Sasuke's legs without sliding out of him. Now hovering above his body at this new angle, he brings his hands down to hold Sasuke’s legs apart. The new position is welcoming for the ninetails and he throws the covers off of himself before going right back to thrusting into Sasuke without restraint.
“W-what the hell, Naruto-!” Still not quite awake, Sasuke keens out a protest, moaning out every time Naruto’s hips meet his own. His eyes grow watery from the arousal filling his awakening body, “Haa- Naruto, please!”
Oh, his moan gives Naruto goosebumps and he doesn’t think his fantasy could’ve come close to the noises that begin to leave the other. Sasuke’s loud, despite his pointless protesting, and it’s bringing Naruto closer to his release. Sasuke whimpers, pushing his only hand softly against Naruto’s abs as he tries to squirm out from under him, “Ahh- nggh- Naruto- Naruto-kun- I-”
Sasuke can’t think, every time Naruto’s fully inside of him, the head of his cock nudges right up against his prostate. His back arched off the mattress, sliding his palm up Naruto’s chest to rest on his flushed skin, “S-Stop this, y-you’re such a pervert!”
The command makes Naruto thrust faster, panting heavily as he shakes his head, “You’re one of those bitches who say stop but they really mean keep going, right?” Naruto leans down to brush his lips against Sasuke’s, “I’ll make sure to fuck your pussy real good, Sasuke-kun.” He chuckles breathlessly while Sasuke’s cheeks turn a deep shade of red.
Naruto talking like this is a shock, the language he’s using is lewd. Naruto can hardly even spell, where did he learn to talk like this?
“N-Naruto-”
“That’s right, keep saying my name,” Naruto keeps pushing his hips forward and Sasuke tilts his head back against the bed, panting out softly.
“S-stop-” He’s flustered; and yet, Naruto continues.
“Gonna shape your insides to take my dick more often, you’re gonna love it,” The blond’s nearing his release, the pace of his thrusts occasionally stuttering and he’ll pause before starting again. Sasuke never expected this, to wake up to Naruto using his body for his own pleasure. He feels his release incoming and he turns his head, biting his pillow to muffle some of his loud grunts while his hand falls to the covers to grip them tightly.
Naruto smirks; because somewhere deep down, he figured Sasuke would be a pillow princess. His hands drop to Sasuke’s hips, pulling his body down roughly on his cock, burying himself as deep as he can over and over again, “Yes, you’ve got such a nice cunt, Sasuke-kun, you’re being so good, so fucking good-”
“Sh- shut up!” Sasuke tries to sound threatening. but his voice comes out in a high pitch and next thing Sasuke knows, his back is arching off the mattress even further and he’s releasing weak spurts of his cum over his stomach, swearing underneath his breath, “F- fuck you! Don’t you dare think about cumming inside of me, Naruto!”
“It’s not like you’ll get pregnant!” Naruto points out, unable to listen. The constriction of Sasuke’s inner walls from his climax makes Naruto reach his peak, spilling his warm seed deep inside of Sasuke. He holds his legs up by his ankles and occasionally moves his hips to stir around what he just put into Sasuke.
“D-don’t do that!” The raven whimpers; and Naruto shakes his head, his dick already twitching with the urge of another round.
“Just trying to see if I can reach your womb, baby.”
Oh, if Sasuke wasn’t coming down from his high, he would so slap Naruto for all of this.
“You’re such a stupid, pervert! I hate you!” Sasuke can still manage to insult him, even while he pants and writhes underneath him, “This isn’t happening again, do you hear me?!”
“Loud and clear,” Naruto purrs, almost not wanting to pull out. He does let go of Sasuke's legs, and the two are silent for a while, that same sexual tension from earlier lingers in the air. Sasuke’s cheeks flush red as he feels something warm leaking down his inner thigh. Shoving Naruto aside, Sasuke turns his back to him and shuts his eyes, his skin heating up in his flustered reaction.
“Good night, Usuratonkachi. Don’t ever touch me again.”
It’s no shock that it does happen again, however.
The following night. And the night after that, it’s a cycle. Naruto got a taste of Sasuke once and now he can’t keep his hands to himself.
Naruto became intrigued with Sasuke’s mouth, in the way it might work. He’s been inside of Sasuke’s ass, and that experience was more than he’d dream it’d be, but his mouth remained a mystery until the fateful night he decided to slip his dick into Sasuke’s parted lips. He couldn’t help himself; Sasuke had taunted him from the moment he entered their room for the night.
“Sasuke,” Naruto whispered, standing beside the bed they shared, his fingers brushing against the raven’s cheek. He didn’t budge, sound asleep. Naruto’s heart began to beat excitedly, having slept with the Uchiha multiple times before, since that first time, he figured the other wouldn’t mind if he just wanted a quick blowjob. Sasuke could wake up, and that would end it. No harm is done.
Naruto pulled his hand back and decided to drop his underwear onto the floor, kicking it off to the side once it was bunched at his ankles. Sasuke remained unaware of what was about to happen, snoring lightly with his mouth slightly parted. The Uzumaki took this opportunity to swipe his thumb against his bottom lip, gently forcing his mouth to open wider, “Open up, Sasuke-kun.”
Naruto felt himself harden just thinking about what he was about to do, wrapping his hand around the base of his dick and guiding the tip of it to Sasuke’s parted lips, pressing the head against them. Sasuke shifted, eyebrows furrowing as he let out a breath. Naruto didn’t move, and he patiently waited for Sasuke to relax before he pushed in, biting his lip to prevent the deep moan that threatened to spill from him as the warmth of Sasuke’s mouth took in his cock.
“You feel so good, Sasuke,” Naruto’s hand moved to tangle his fingers into Sasuke’s hair, using his head as leverage to slide into his mouth. “So hot, so wet.” He didn’t stop until Sasuke’s nose was pressed right against his crotch. Naruto’s hips stutter at the pleasure, bucking forward too soon accidentally and causing Sasuke to choke around his dick. His throat squeezed and tightened around it so delightfully that Naruto couldn’t help the loud moan that fell from his mouth.
It’s a surprise that Sasuke doesn’t wake up; he doesn’t even stir as Naruto begins to thrust slowly in and out of his mouth, pulling tightly at his hair. Getting too lost in the feeling, Naruto adjusts his grip and angle before he continues with a much brutal pace, his thrusts becoming erratic as the room fills with nothing but the sounds of Naruto’s groans, Sasuke’s gagging, and the wet noise of his mouth around the jinchuriki’s cock.
Naruto swears under his breath the moment he realizes he’s approaching his orgasm. He wants to savor this moment, but he can’t, “G-gonna cum, Sasuke,” He pants, “Don’t be angry with me, okay?” He feels the heat of his release in his lower stomach; and right on cue, Naruto cums straight down Sasuke’s throat, painting the inside of his mouth white with a strained groan.
He pulls out with hesitation, all while Sasuke finally blinks his eyes open, coughing from his throat being filled with a sudden warm liquid. His sharingan is activated out of slight irritation, slapping Naruto’s hand out of his hair with a growl as soon as he’s finished his coughing fit, “Really, Naruto?!” He rubs his only hand against his jaw, glaring up at him as Naruto comes down from his high, “You could’ve at least woken me up and asked for head like a decent human being! Pervert!”
“Sorry, Sasuke,” Naruto rubs at the back of his neck, his cheeks flushed as he admires the reddening color of the other’s lips in the dim lighting, “I couldn’t help myself.”
“Whatever,” Sasuke turns away from him, wiping the back of his hand against his lips and clearing his throat a few times, “Good night, usuratonkachi.”
“Yeah, good night.”
Naruto was bound to get addicted to the idea of having some type of sex with Sasuke every night since they moved in with each other and that sexual tension was discovered. He was going to continue to push boundaries to see what he can and can’t get away with.
One way he tried to push Sasuke’s limits was by sneaking into the shower behind him. Although the raven tried to slap him and called him multiple insults, Naruto pinned him against the shower wall rather easily. If the Uchiha had truly wanted to get away, he could’ve. Yet . . he still didn’t push him away hard enough, falling apart on Naruto’s dick as soon as he pushed into him. It takes everything in Naruto not to fuck Sasuke again when they exit the shower, watching him walk back to their bedroom with nothing but that towel around his waist. He only has one arm; and something about the other struggling against him - even if it is just for show, arouses him. His weak protests of “Stop” and “No more” fuel Naruto’s sexual desire and he can’t help but ravage the Uchiha whenever he can.
It gets to the point where every time Naruto returns home from a training day, tired and aching for some rest, but instead of sleeping, he’ll choose fucking Sasuke. Naruto usually returns to find him sleeping on the couch on his stomach, and to complete such a pretty picture, he’ll take his headband off, bind Sasuke's wrist behind his back with it, and he’ll undress his lower half to have his way with him for a few hours.
Sometimes when Sasuke goes on long day missions, Naruto will use Sasuke’s shirt to jack off. The fabric smells like him, and he’ll sometimes go as far as to build a whole pillow body model of the Uchiha. Wrapping a shirt around one, folding it in half, sticking his cock in the hole it creates, and then fucking it until his dick is raw and he can’t cum anymore. When Sasuke returns from his missions, he’s oblivious to Naruto’s masturbation plans. He does the laundry like normal, unaware of the dried cum stains on some of his favorite shirts; and when he cleans the house, he doesn’t realize that some of the couch pillows are missing and then they magically reappear a few days later.
Not to mention that Sasuke can barely get past the door when he returns from missions because Naruto’s already trying to pin him against some surface, pulling at his clothes to try and get inside of him already. It’s exhausting.
The last time Naruto fucked Sasuke against the front door, the neighbors complained. He had to stop in the middle of taking Sasuke over the dinner table, opening the door just enough to peek his head out when his neighbors spoke up. “You and your partner are a little too loud,” They had said, “We’d appreciate it if you kept it down.”
Naruto put on a fake face, smiling as he replied, “No problem!”
As soon as the neighbors were gone, Naruto returned to the kitchen, dragged Sasuke over to the wall that he shared with that neighbor’s apartment, and he fucked him against that instead. He kept going until Sasuke started crying from sensitivity, begging the jinchuriki to let up and let him go to bed. having been inside of him from six in the afternoon until the moon was highest in the sky. Their neighbors probably hated them for Naruto’s petty move, but the blond is so far gone that he doesn’t care. As a motion of consideration, Naruto only put his hand over Sasuke’s mouth, still thrusting up into his wet heat with a breathless growl, “Just a few more times, baby, you’re doing so well.” Unable to protest any further, Sasuke just nodded and let the other do as he pleased.
He’s been letting Naruto do as he pleased since he arrived at his apartment.
They fuck so often that Naruto’s trained Sasuke’s body to cum untouched, he knows just where to touch him to make his thighs shake, just what to do to make him beg for more. It’s a miracle Naruto hasn’t grown bored of him, he doesn’t think he’ll ever be bored of him. He knows Sasuke will give him whatever he wants.
Except for that one time; when Sasuke had tried to put his foot down. He told the Uzumaki that he couldn’t touch him anymore or he’d move out, that the only reason he was acting this perverted was his dead sensei’s fault. Naruto heard that same argument too many times, the refusal went in one ear and out the other; his hands still reached out to grab at Sasuke’s hips.
Then he felt Sasuke’s hand hit his cheek. The rejection made him angry; Naruto didn’t think that the nine tails chakra cloak would come out. His teeth extended into canines, his eyes narrowed into slits and Sasuke doesn’t know why but the sight of seeing Naruto in such a savage state made his knees weak. He gave into him pretty easily after that; allowing the Uzumaki to claw off his clothes and fuck him into oblivion.
So . . . It makes sense that Sasuke thinks moving in with Naruto was a bad idea.
Asleep or not, that sex-addicted monster craved sex with Sasuke, whether the Uchiha wanted it or not. Sasuke's starting to bruise at his hips, and it’s been a pain in the ass (literally) to sit for the past few weeks. Sasuke knows he can easily put a stop to Naruto’s sex addiction; he is a shinobi after all. He does complain, but he never protests enough to get Naruto to stop. Why?
Because as addicted to fucking him as Naruto is -
Sasuke’s just as addicted to getting fucked by him.