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It starts, of course, because Kunikuzushi never knows when to shut his fucking mouth. This information isn’t new to Aether, or to literally anyone who’s ever met Kunikuzushi. And yet —
Kunikuzushi laughs, reclining easily against a pile of pillows, even goes as far as to lace his fingers together behind his head with a smug grin on his stupid pretty face. “You’re so wet. Are you gonna cum already? It’s only been a few minutes, you know. If only everyone knew what a pathetic whore you were.”
Aether’s face burns with a mix of arousal and fury. Kunikuzushi’s gaze on every inch of his bare skin makes him want to wrap his hands around the puppet’s throat until he stops fucking talking. Instead his hands are braced behind himself, using Kunikuzushi’s legs to keep his balance. He’s devastatingly exposed like this, thighs spread wide to give himself as much leverage as possible to fuck himself on Kunikuzushi’s cock.
The overhead light is off but it doesn’t matter either way, it’s a warm sunny day inside Aether’s teapot realm and his bedroom is filled with sunlight. It puts everything on display, from the red flush on his cheeks to the ache of his tits from being groped til the point of bruising to the way his cunt drips around the cock pressed deep into his guts. Aether scowls and tries to focus on how good it feels, ignoring the strain in his thighs to raise his hips until his hole clings to the head of Kunikuzushi’s cock.
He shudders, drops his head back between his own shoulderblades and grinds his hips just enough to fuck himself with the very tip. It somehow feels filthier than when he takes that cock all the way to the base.
On the next grind he presses down again, moans like it’s the first time he’s felt Kunikuzushi’s cock spread him open like this — it isn’t, not even close, Aether couldn’t begin to keep track of how many times he’s ended up spread open on a cock that realistically doesn’t belong on a short frame like Kunikuzushi’s. But fuck, Kuni knows how to fucking use it, knows how to make Aether cry and scream and cum his goddamn brains out. When he isn’t being an asshole, that is. Reclining smugly like some fucking king, taking pleasure while Aether does all the work.
“Maybe you should quit traveling,” Kunikuzushi suggests. There’s a flush to his face that betrays the ease of his words. “Work full time as my personal cockwarmer. You’re a lot better at this than anything else, you know.”
Aether bristles, gritting his teeth.
Unable to ever just stop fucking talking, Kunikuzushi continues, “I’m sure everyone would miss their beloved hero, but you’d be so much happier with me. You’d live just like this, getting fucked every day like the slut you are. I’m sure one day you’d even end up mothering a few brats.”
That hurts worst of all because Aether wants it. He hates how much he wants it and he hates Kunikuzushi and he hates how much he could never hate Kunikuzushi, not really. Kunikuzushi is saying all of this to make him cum and it’s terrible because it’s going to work, just like it works every goddamn time.
“Can you shut the fuck up!” Aether snaps. Kunikuzushi blinks, caught off guard, almost offended. “You talk so much shit for someone who’s nothing more than a glorified dildo. Really, Kuni, you should feel lucky that I’m using you like a toy. It’s more than you deserve, with a mouth like that.”
And then —
Kunikuzushi cums. He makes a sound Aether’s never heard before, a trembly whimper as he squeezes his eyes shut tight. Aether loves when Kunikuzushi cums inside him but he usually has to beg for it, has to pout and debase himself and plead and hope that Kunikuzushi feels merciful enough to give Aether what he wants. Kunikuzushi’s stamina is insane, almost as much as his refractory period. Even several rounds deep, Kunikuzushi is always in control. Aether has never seen this before. His face flushes red. The tips of his ears are pink. When he opens his eyes they’re wet, tears clinging to his eyelashes. He’s never looked prettier.
“Aether.” Kunikuzushi’s voice breaks. He looks just as stunned as Aether feels. Aether whispers fuck and surges forward, shifts himself fully into Kunikuzushi’s lap with his knees tucked in tight around the puppet’s hips. Arms wrap around his waist as Aether cups Kunikuzushi’s face between his hands and pulls him in for a kiss. Kunikuzushi opens for the sweet press of Aether’s tongue, whining into the kiss as Aether starts rocking on his cock again.
Aether kisses the soft swell of his lower lip, the corner of his mouth, the tip of his nose, his forehead. “You feel so good.” He whispers into Kunikuzushi’s hair. Kunikuzushi shakes. “You’re such a good toy, Kuni, fuck, you’re the best toy I’ve ever used. Nothing’s ever felt as good as you.”
Kunikuzushi all but sobs Aether’s name like it’s the only word he remembers. Aether shushes him, carding gentle fingers through soft strands of hair. Kunikuzushi’s still hard, will be for an almost horrific amount of time. Aether usually has to tap out before Kunikuzushi’s done, use his mouth or his hands or let Kunikuzushi grind between the soft skin between his thighs because his pussy is so fucked raw that he threatens to cut Kunikuzushi’s dick off if he even thinks of trying to fuck him again.
Aether takes advantage of this now. He can’t get as much leverage as he had in the previous position but the very idea of pulling away from Kunikuzushi when he’s like this, teary-eyed and whimpering with every movement, is absolutely not an option. Instead, he settles for grinding Kunikuzushi’s cock deep within himself, moaning at how well his favorite cock stretches him. It’s insane how fucking good it feels, Aether almost wishes that all of his dirty talk were just for Kunikuzushi’s benefit.
Aether’s always hated how eagerly Kunikuzushi takes advantage of Aether’s kinks to ruin him. For the first time, Aether thinks he understands exactly why Kunikuzushi does what he does.
“Kuni,” Aether gasps, pressing his forehead to Kunikuzushi’s shoulder for a moment, “Kuni, hnng, ah, ah, oh fuck, you’re so good at this. ‘S like you were, ah, like you were made for this.”
Kunikuzushi gives a wordless cry, hands tight enough around Aether’s waist that he just knows there will be bruises later. He looks forward to seeing and touching them. The ache of them always makes him want to do this all over again. After a moment Kunikuzushi shakes his head.
“You were made for me.” Aether insists, drawing Kuni’s chin up when he tries to look away. “You were never made to house a gnosis, not really, you were made for this. Created just for me. Just to be the perfect doll for me.”
Kunikuzushi closes his eyes tight, whining. His brows draw up to a cute little point and Aether kisses between them. He whispers every adoring filthy thing he can think of, sinks his teeth into soft skin and hopes that the marks stay long enough for them to admire afterwards, feels his own movements turn clumsy and shuddering the closer he gets to the edge.
Kunikuzushi tries to touch his clit and makes a wounded sound when Aether pushes his hand away.
“I’ll let you touch me if you say that you were made for me. Just a few little words, Kuni, tell me what you are.”
Kunikuzushi throws his head back into a soft pillow, frustrated. “Aether.”
“Say it. Kuni. Kunikuzushi. Say it.”
After a moment, Kunikuzushi shudders a gasping breath. “I was,” His voice breaks. “I was made for you.”
Aether would almost feel bad for how viciously he bites at Kuni’s mouth if not for the way Kunikuzushi moans like he’s already cumming just from the sharp press of teeth. “That’s right, that’s so perfect, my good boy, my perfect little toy.”
“I’m your toy I’m your toy Aether I’m your — I’m — I’m yours.” Kunikuzushi whines, tears tracking down pretty flushed cheeks. Aether curses, grabbing for the hand he’d pushed away and yanking it between his own thighs to grind against Kuni’s fingers. Even fucked out and whimpering with every clumsy press of Aether’s hips, Kunikuzushi still knows what to do — just like a good toy, designed for one thing and one thing only, he knows exactly how to touch Aether to make him cum. Aether twitches and drools and desperately grinds on Kuni’s cock.
A thumb pressed to his clit, rubbing quick circles that make his fucking thighs shake, long fingers tracing where Aether is already spread achingly wide around his cock and tugging like he’s going to try and fit a finger up there too, flicking the throbbing ache of his clit and tugging on it like the world’s cutest little cock —
Aether thanks every god in existence that the rest of his realm is empty when he wails his way through an orgasm that he feels right down to the tips of his fucking fingers. He sobs, fucking himself through it desperately, wringing out every moment of aching pleasure. Kunikuzushi doesn’t stop for a moment, rubbing the nub of his cock and encouraging Aether’s movements with a hand on his waist.
Aether collapses on Kuni’s chest, gasping for air. Everything is so fucking wet. He twitches and trembles, even more so when Kuni slides a hand down his spine and between his legs to touch where his cock is still pressed deep inside Aether’s pussy.
“Aether, I, can I — ”
Aether interrupts him. “Fuck me, Kuni, make me cum again. Be a good fucktoy.”
Kuni grabs Aether’s waist and pushes forward until Aether lands in a mess of soft sheets, feeling pathetically empty for only a moment before Kuni shoves his way between Aether’s thighs and fucks into the desperate gape of his cunt without hesitation. Aether cries out, feet sliding on the sheets until he manages to hook them on the sweetheart arch of Kuni’s spine. Kuni grunts and shifts enough to grab at one of Aether’s thighs, pushes it up and up until Aether’s knee is touching his own chest and his leg is hooked over Kuni’s shoulder. Kuni fucks in deeper like this, pressed close enough that their mouths brush with every thrust.
It can barely be called kissing, the way they’re all but gasping into each other’s mouth, swallowing every needy sound and whimpered petname and praise, your cunt is so wet fuck your cock feels so good you’re gonna make me cum I’m gonna cream your pussy —
Aether is proud of himself for how long he lasts this time, he wants to live in this moment forever, but then he realizes that Kuni is whispering something where he’s tucked his head away into the safety of Aether’s shoulder. Shaky hands move from digging bloody marks into Kuni’s back to tugging on Kuni’s hair enough to lift his head just a little.
Aether feels like he’s been electrocuted when he realizes that Kuni is chanting good little toy perfect doll ‘m just a toy under his breath. Aether’s never seen something get to Kuni like this before. They both have their fair share of kinks, things that make them claw at the other desperately with an aching need, but nothing has ever done this to Kunikuzushi. Nothing has turned him into this needy pleading whimpering wreck, fucking Aether like it’s his job — like it’s his purpose, the very reason he was created.
Suddenly, Aether decides that he’ll do whatever it takes to give this to Kunikuzushi. He wants it all, he wants the cruelty and the forced orgasms even when Aether is crying too hard to speak and the bloody bruises, and he wants the teary eyes and the whines and the whispers of Aether’s name like it’s something to be revered.
“Kuni,” Aether nudges at Kuni’s cheek with his nose until he catches his attention. “Kuni, did you know that some dollmakers, they put their own names on their creations? So that everyone knows who the dolls belong to.”
Kunikuzushi goes very still. Aether cards a hand through the back of his hair, rakes his nails over the mark that he knows sits at the base of his neck just hard enough to sting. “Sometimes the marks go here, hidden away. Sometimes on the base of the doll’s feet. Other times, they go here.” Aether presses his hand over Kuni’s chest. Their eyes catch and Aether knows that they’re thinking the same thing.
Right here, hidden only beneath the sheer fabric of Kunikuzushi’s bodysuit, where anyone could see it.
Kuni doesn't need to breathe but he takes a shuddering breath anyway, and then he nods to the unasked question, once firmly and then several times, each more frantic than the last.
Aether lifts his own head enough to press their mouths together. He kisses Kuni as sweetly as he knows how and whispers that if Kuni makes him cum again, Aether will give him exactly what he wants.
Oh, does Kuni make him cum again. With both of Aether’s legs thrown over one of Kuni’s shoulders, all but folding Aether in half and pounding into his pussy like any other thought has been erased from his mind.
He’s such a good boy, Aether thinks a little hysterically, before that thought is wiped away by another wave of blinding pleasure as he cums on Kunikuzushi’s cock again. Kuni fucks him through it, plays with his clit even when his hand ends up so drenched that his touch provides pressure more than friction, and Aether starts twitching away from him in oversensitivity. Everything gets even slicker when Kuni moves in close to fill up his pussy with another load. He only stops thrusting when Aether presses a shaking hand to his chest.
Aether tries not to squirm too much when Kunikuzushi withdraws. Kuni sits back, cock still half-hard between his legs and slick-shiny from Aether’s pussy and his own cum. He stares between Aether’s thighs with an intensity that Aether would hate if it didn’t make his cunt throb, didn’t make him slide a hand between his own thighs to gather up the cum leaking out of his hole and finger it back inside himself.
“Fuck,” Kuni growls, starts to move back in like he plans on taking over. Aether almost lets him, he already misses the curl of Kunikuzushi’s talented fingers inside him, but —
Aether nudges him back with a foot on his chest and a sharp, “No.” that makes Kuni freeze in place. He has plans, Kuni can fuck him unconscious when they’re done and not a moment before. Aether nods towards the dark wooden closet on the other side of the room, where he keeps an extensive collection of weapons; swords and bows and daggers and the occasional claymore, scavenged from around Teyvat and occasionally taken from the bodies of enemies. Kunikuzushi gives Aether’s cunt one last longing look and Aether huffs, nudges at him with his foot again until Kuni leaves to retrieve what Aether had asked for.
He returns with a dagger, small and only good for close-ranged attacks. The blade itself is wickedly sharp and sits atop a beautifully intricate hilt. It looks good in the grip of Kunikuzushi’s delicate hands.
Kunikuzushi handles pain beautifully. Aether had asked once if Kunikuzushi felt pain at all. The answer had been a firm yes and nothing more. Aether hadn’t asked anything more from Kunikuzushi. It was clear just how little Kunikuzushi wanted to talk about what he’d experienced during his time as the Balladeer.
Kunikuzushi hardly blinks at the press of a blade into his flesh. He stares at Aether intently. The edge is sharp enough that it splits his skin easily, draws ruby droplets to the surface as Aether works to keep his hand steady on the first stroke of the A in his name. Another line, then a shorter one between them, Aether works his way through his own name as carefully as he can. It needs to be perfect, he reminds himself. A perfect mark on a perfect doll.
Kunikuzushi is flawless, a doll through and through. He cries and he cums and he bleeds and he even bruises, just a little, but his skin will always return to its smooth pristine appearance. There are no scars, no blemishes, no freckles. Unlike Aether, he doesn’t even tan. Kunikuzushi had once taken Aether’s hand and touched below the corner of his own eye with Aether’s fingertips as he explained that he’d had Dottore sand off a beauty mark that had sat there for centuries. This body is Kunikuzushi’s own and every mark that finds its way there only does so because he allows it. Aether cuts his own name into Kunikuzushi’s chest because he allows it.
Aether leans in and then away to scrutinize his own work, then nods decisively. It looks good. It looks right.
Kunikuzushi presses his fingertips to his own chest. They come away bloody. Kunikuzushi doesn’t look upset by this. “What if it fades?”
Aether hums, taking Kunikuzushi’s hand into his own and wiping away the blood with the edge of a sheet that’s already in desperate need of a wash. “Then I’ll just have to do this again, and again, as many times as it takes for your body to understand that my name belongs on you.”
The look Kunikuzushi gives him is shocked, though it quickly becomes heated. Aether giggles and has just enough time to shove the dagger off the bed before Kunikuzushi drags him into a kiss, the bite of teeth and the press of a tongue wiping every other thought from his mind.
Kunikuzushi does end up fucking Aether unconscious, a whole new wave of eager energy poured entirely into dragging Aether into various positions and making the poor boy cum until his eyes roll back and his body tenses all over before going limp. Kunikuzushi delicately pulls away from Aether’s cunt, affectionately spreading his folds just to watch his own cum drip from the oversensitive hole.
Kunikuzushi finishes by cumming on the soft skin of Aether’s tummy, and smiles to himself at the thought of carving his own name there for everyone to see.
Kuni may be a toy who belongs entirely to Aether, but that doesn’t mean that he doesn’t own Aether in return. As soon as Aether regains consciousness, he fully intends to make that clear.