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Naruto will never get tired of the sounds Sasuke makes as he's being taken. He actually prefers to ride Naruto, and that has its own advantages: watching Sasuke seek his own pleasure on Naruto's dick, getting to see his face twisted in that unique mix of pleasure/pain, getting to see him stripped bare of any masks, any deniability. When he's riding Naruto, he can't pretend he doesn't love it, doesn't crave it, and sometimes, Naruto loves that reminder.
But Kuruma isn't a fan. Sasuke riding him feels too much like him dominating Naruto to him, and while Naruto enjoys aspects of it, it doesn't satisfy the way that holding Sasuke down does, taking him from behind, hard, biting his shoulders, his neck, watching his dick sink into moonlit flesh, making Sasuke come from nothing but the dick in his ass, feeling Sasuke tremble beneath him, shuddering. Beneath him like he belongs there.
He does belong there. He belongs on his knees, ass in the air, ready for Naruto to fuck. He belongs whimpering, whining, begging for Naruto's dick. Sasuke would never admit it, but he knows it, needs to be fucked, needs to be owned just as much as Naruto needs to fuck him, needs to own him. They've tried it the other way, but Kurama had screamed in Naruto's head the whole time, protesting that the bitch doesn't belong anywhere but on his dick. It wasn't bad, but Naruto spent so much time arguing with Kurama, he hadn't been able to enjoy it at all, and he doesn't think Sasuke did much either. It's better to just accept what their natures dictate.
Though Sasuke would probably sooner die than admit aloud that he's the one who belongs on his knees.
Naruto grins as Sasuke keens. He only makes that sound when he’s close, just about to come. He catches Sasuke’s hand as he reaches for his dick, tangling their fingers. Sitting back, he yanks Sasuke up, pounding Sasuke’s prostate, drinking down Sasuke’s hitching, gasping breaths as much as reveling in the hot, slick, tight of his body until Sasuke cries out, his body clenching down on Naruto as he comes. Naruto uses his free hand to turn Sasuke’s face to capture his mouth, claim it as his own orgasm takes him.
The kiss gets lazy, almost tender, as they both shudder through the aftershocks of their orgasms, and Naruto eases them down to the bed on their sides, keeping his dick wedged inside. He finally releases Sasuke’s mouth to lap the sweat from Sasuke’s neck and shoulders, nibbling at the sensitive skin. It makes Sasuke tremble in his arms, but he doesn’t complain, doesn’t try to pull away. Naruto nips at one of the pale scars that mark the back of Sasuke’s neck and shoulders, almost invisible against his pale skin.
He still hates the mark from Orochimaru. The skin around it is raised and warped from years of Naruto biting at it, but it’s still there.
Before he can bite at it again, Sasuke’s free hand blocks him. “Don’t,” he says, lazy and sated.
Naruto pouts, even though Sasuke can’t see him. “I hate it.”
“I know,” Sasuke says, shifting back slightly, pressing his back tighter to Naruto’s chest. Naruto knows it’s an appeasement thing, but Naruto loves it, and it works. “He’s been gone for more than ten years,” he reminds.
Naruto tightens his grip around Sasuke’s waist, wedging a leg between Sasuke’s knees as he makes sure to keep their hips pressed tightly together. “He almost took you from me.”
Sasuke sighs, clearly unwilling to retread the old argument. “I’m here,” he says. “I’m with you. He’s dead. You won.”
The impulse to move Sasuke’s hand and bite at the seal is still strong. Instead, he sucks a bruise into the side of Sasuke’s neck. It gets a soft gasp and Sasuke’s head falls back. Naruto has to resist a grin because he knows how sensitive Sasuke’s neck is.
“Fucking horndog,” Sasuke complains, but it’s breathy, and Naruto doesn’t believe it.
“You love it,” Naruto murmurs, releasing the skin but twisting his hips. He definitely rubs against Sasuke’s prostate, because he gets a sharp inhale, and Sasuke tightens around him for a moment. Fuck, if he keeps doing that, Naruto really will get hard again.
“Maybe we can see if we can tattoo over it,” Sasuke offers. “But not your name.”
Naruto nips at his throat in retaliation. “Forgive me for wanting everyone to know you’re mine.”
“Everyone already knows,” Sasuke says, sounding tired. Naruto kisses the ring on Sasuke’s finger. Everyone knows that the Hokage is married to the former missing-nin, that’s true, but the need to stake his claim is never wholly slaked.
They’re used to that, by now. It had been… difficult to deal with when Naruto first brought Sasuke back to Konoha all those years ago after that final fight with Madara. When Madara explained that Naruto’s obsession with Sasuke wasn’t natural, but something instilled in him, woven into his seal, meant to make him loyal to the Uchiha, meant to make him protect him at all costs, they’d both been shocked.
Naruto had been meant to be a loyal dog, meant to protect and keep safe, prioritize the Uchiha above his own safety, try to keep them in Konoha. Since the massacre, the only one Naruto had interacted with and been able to latch onto was Sasuke, but there were two things Madara hadn’t foreseen when he added that element to Naruto’s seal.
He hadn’t expected Naruto to only have one Uchiha to focus his protectiveness on, and he forgot about the need for a mate. He didn’t realize that some foxes mate for life.
Looking back, Naruto’s pretty sure he’d decided on Sasuke being his mate back when they were in the Academy together. Once he had his mate home, healthy, healed from nearly losing their damn arms, there was no question of more in Naruto’s mind. Sasuke was his and everyone else needed to know it.
Just the memory of that first time makes Naruto harden again, getting another soft gasp out of Sasuke.
“Do you remember, Sasuke?” he asks, beginning to rock his hips again. “Our first time?”
“How could I forget?” Sasuke demands, and he probably means it to be grumpy, but it comes out breathy, sultry.
“You were so fucking tight,” Naruto says, grinning into Sasuke’s neck as he starts lazy thrusts.
“You were an idiot—!” Sasuke has to stop to gasp, and Naruto’s grin widens, not that Sasuke can see it. “Who didn’t know a fucking thing about proper prep.”
“Not true,” Naruto argues. He proofread too many of Jiraya’s kinky novels to not know the nuances and technicalities. Sasuke had just been tense as all fuck, and Naruto’s almost sure he spent the better part of half an hour trying to open him up before losing patience. “Besides, you like it when it hurts a little.” He reaches up and pinches one of Sasuke’s nipples painfully, getting a delicious gasp and Sasuke tightening around him. After more than ten years as lovers, Naruto can play Sasuke’s body like an instrument.
“You were impatient,” Sasuke complains, though it’s hard to take the protest seriously when Sasuke’s voice is thick with desire.
“I think you were just nervous,” Naruto replies, beginning to longdick Sasuke. Sasuke bitches that he hates it, that it’s too much, but Naruto loves the way it can leave Sasuke mewling and helpless in his arms, and for all that he bitches, it’s one of the fastest ways to make Sasuke come untouched.
Not that Sasuke has a problem coming untouched after all these years. It was hard for him to get there in the beginning, but at some point, his body adjusted. Now, Naruto just groping his ass is enough to start making Sasuke hard, and Naruto hasn’t had to prep him for years. His body opens to let him in like it’s where he belongs.
Probably because it is.
“Fuck,” Sasuke hisses. “Naruto…”
He doesn’t try to reach for his dick twice in one evening. He knows by now that if Naruto’s not in the mood to let him touch it, that he really shouldn’t. There had been times where they’d fought about it, times when Sasuke fought back, tried to fight him off, but no one matches Naruto for persistence. Besides, Sasuke may not admit it, but he loves it when Naruto takes control, when he makes Sasuke take it. There’s this moment when they’re fighting, pushing at each other, when Naruto overpowers him, that’s hard to describe, but it’s like this moment when Sasuke finally gives himself permission to accept what he wants anyway. That moment? It’s addictive, and Naruto starts to thrust harder, making Sasuke whimper and twitch.
“Naruto…” he says, pleading. He only ever says Naruto’s name like that when they’re like this. Naruto will never get enough of it, never get tired of hearing it. He’s tried to make Sasuke beg for it, make him say what he actually wants. He rarely succeeds—Sasuke’s a near match for his stubbornness there—but that tone? That tone is its own reward, its own concession.
“You feel so good, Sasuke,” Naruto tells him, stroking his abdomen and chest but never touching his dick. “You’re so good for me.”
“Naruto,” Sasuke says again, this time with a hint of desperation creeping into his voice as his hips rock back to meet Naruto’s thrusts, trying to make him speed up, take him harder, push him over the edge faster.
“Together, love,” Naruto says. Sasuke only ever lets him call him pet names when they’re having sex. “Together with me.”
“Na—Naruto!”
“Not yet, love,” Naruto says, even though he can feel his own orgasm building low in his hips. “With me, remember?”
Sasuke writhes, arching his back, sounds of needs trapped in his throat. Still so stubborn after so long.
“Let me hear you,” Naruto coaxes, twisting a nipple hard, even as he bites at Sasuke’s throat. It’s going to be a mottled mess of hickeys and bites in the morning, and Sasuke will bitch, Shikamaru will grouse that it’s undignified—like he’s got any room to talk—and Sakura will ask him if she needs to give him a proper chew toy that isn’t his husband, but no one will ultimately do anything. Marking Sasuke so visibly always puts Naruto in a good mood, and no one is actually going to interfere with that.
He gives a hard thrust, targeting Sasuke’s prostate, and Sasuke tenses, letting out a choked-off moan.
Naruto tsks. “That’s not what I asked for.” Another direct thrust to Sasuke’s prostate, and he finally touches Sasuke’s dick, but only to put pressure on the base and to keep him from coming.
“Fuck, Naruto!” Sasuke shouts, his body tensing right on the edge of coming, not able to fall over the edge with Naruto stopping him. One of these days he really ought to see if they can figure out how to make Sasuke dry orgasm, but that’s something to try another time. Sasuke’s oddly prudish, still, and he always gets touchy when Naruto wants to try something new and a little kinky. Naruto doesn’t mind. Convincing him is half the fun anyway.
“Naruto!”
There. Naruto releases Sasuke’s dick and says, “Come for me. Come with me!”
Sasuke tightens up again in orgasm and Naruto goes with him, dragging out the orgasm by fucking him through the aftershocks until Sasuke is spent and pliant in his arms again.
He sucks a final hickey on the underside of Sasuke’s jaw, but Sasuke just lifts his chin to give him better access.
“A tattoo is a good idea,” Naruto says, resisting the urge to bite that damn curse seal again. “We can talk to Sai about it in the morning.”
“Whatever,” Sasuke says, not fighting the way Naruto curls up around him, leaving his dick buried inside. Sasuke hated that, in the beginning, but Naruto finds it soothing to be connected to his mate so intimately, and Sasuke—when the asshole lets himself—seems to find comfort in it too. He tugs their comforter over them, careful not to dislodge himself, then settles in.
“Happy anniversary, Sasuke,” Naruto tells him, placing a final kiss on his nape.
Sasuke says nothing, the even cadence of his breathing telling Naruto he’s already drifted off to sleep. And really, what better gift could he give Naruto than his complete vulnerability and trust?