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When Kaeya and Diluc fuck, love has nothing to do with it.
Maybe once upon a time it did, when Kaeya still looked at Diluc like he hung all the stars in the sky just for him, when Diluc could still look at Kaeya and feel anything other than rage.
When Diluc had touched Kaeya with love, when his hands had been gentle and he’d taken whatever care he could not to hurt the man he loved.
There had been love, once.
Before everything went wrong.
Now, it’s just sex; hard, and fast, and violent.
Now, love has nothing to do with it.
Kaeya falls into Diluc’s bed with the scent of alcohol on his tongue, lips quirked into a smirk, and Diluc bites that smirk away with sharp teeth until the taste of blood fills his mouth and Kaeya moans.
There’s no finesse, no care, just anger and loneliness and two men who know each other too well to find this sort of solace in the bed of another.
Diluc has little care for Kaeya’s beautiful clothes, for the way they hug his frame in a way that makes Diluc’s mouth water, that always feels like it’s just to taunt him, to mock him and make him remember what it is he can never have outside of whatever this is.
Buttons fall to the floor as Diluc tears open Kaeya’s shirt without bothering to remove his corset, and he drops his face down to Kaeya’s chest, biting at his nipple and twisting the other between his fingers. The sounds Kaeya makes are perverse, his hands reaching up to twine themselves within Diluc’s hair, pulling out his hair tie so he can pull, and it’s Diluc’s turn to moan into Kaeya’s chest.
There’s no love here.
Still mouthing at Kaeya’s chest, Diluc reaches down to push down Kaeya’s pants – always too tight for any true decency – and his cock springs free from its confines, red and angry and erect, and Diluc takes it in hand just to hear the way Kaeya screams when he twists.
He pulls away from Kaeya and looks down at him, already so debauched despite the fact that Diluc hasn’t even started fucking him yet, with his hair sticking to his face with sweat and pupil blown wide with lust. Spittle sticks to his lips as he pants, and Diluc shoves two fingers into that waiting mouth.
“Suck,” he orders, and Kaeya obediently wraps his tongue around his fingers, getting them nice and wet because this is the only lubrication he’s going to get.
They both know they prefer it when it hurts.
Satisfied with Kaeya’s efforts, Diluc withdraws his fingers and reaches down to Kaeya’s hole, teasing it just to watch the other man squirm in his grasp.
“Please,” Kaeya whimpers, and this is the only time Diluc ever hears those words from his mouth.
Taking mercy (this is no mercy, this is selfish and cruel and Diluc can feel his own cock throbbing in his pants where he’s neglected it thus far) on Kaeya, he thrusts both fingers into his ass, cock jerking in response to Kaeya’s scream.
It has to hurt, there’s no way it doesn’t, but Kaeya’s walls clench down on Diluc’s fingers, sucking him in and begging for more. Diluc brutally thrusts in and out of his hole, watching the way Kaeya throws his head back and moans when he brushes against his prostate – hard enough to feel, but too light for any real satisfaction or release.
Kaeya knows he’ll come on Diluc’s cock or not at all.
Eventually, Diluc’s patience runs out and he shoves his own trousers down to his knees and takes his cock in hand, skin heating up at the way Kaeya looks at it with lust in his eyes – it’s bare want and desire that Diluc never sees outside of these terrible decisions. Kaeya arches beneath him as Diluc presses his cock to his barely prepared hole, spitting down on it to ease the slide – for his benefit, not Kaeya’s – before thrusting forward and sheathing himself in one go.
Kaeya momentarily stills beneath him at the intrusion, but Diluc gives him no time to adjust, brutally thrusting in and out, chasing his own pleasure with no thought to Kaeya’s. Kaeya’s walls are welcoming and soft, just like they always are, so much softer than Kaeya himself, sucking him in and refusing to let go.
He drags his cock over the bundle of nerves that have Kaeya squirming under him and nails dragging down his back, tearing holes in his shirt from the sheer force.
“Diluc!” Kaeya screams, gasps, like a man begging at an altar for whatever his god will give him – only Diluc is his god here and it is his name that Kaeya chants like a prayer.
He grips Kaeya’s hips hard enough to leave bruises, his own short nails digging in enough to draw blood, and when he leans down to bite at Kaeya’s neck he tastes blood.
“Disgusting,” he growls in Kaeya’s ear, “begging for the cock of a man you hate, always crawling back for more like a pathetic animal.” Kaeya whimpers and moans, and his sounds only spur Diluc on.
When he looks down, he can see the red of blood on his sheets, but neither of them cares, both lost in this angry dance of theirs, nothing more than animals chasing their most base of desires. Kaeya brings his legs up and crosses his ankles behind Diluc’s back, drawing him closer and closer, and who is Diluc to deny him?
He’s never been able to say no to Kaeya, after all.
Diluc can feel the way Kaeya clenches down on him as he reaches his climax, but before he can fall over that edge, Diluc grasps the base of his cock and squeezes, cutting it off before it comes to anything, and Kaeya makes a noise like a wounded animal.
“Please Luc, please let me come,” he babbles, trying to pry Diluc’s hand away, but Diluc merely pull his tie from his neck and one-handedly wraps it around Kaeya’s arms, pinning them above his head without any hope of moving.
“No,” he growls, and Kaeya bares his teeth at him.
“You say I’m the animal,” he gasps out as Diluc thrusts in particularly hard, and Diluc resists the urge to hit him for it.
Nothing above the neck.
That’s their one rule, ever since this started – whatever this is.
They can hurt each other as much as they like, make each other bleed however much they like, but no one can know it happened.
But that doesn’t stop Diluc from prying Kaeya’s ankles from him and flipping him around, pressing down against his back and he fucks him into the mattress. He reaches up and grabs the back of Kaeya’s neck, using it as an anchor point to thrust deeper, as Kaeya’s moans are muffled by the mattress.
Cock still buried inside Kaeya’s ass, still thrusting, Diluc uses his other hand to hit down on those perfect cheeks, watching red blossom across dark skin. He hits again, and again, just to feel the way Kaeya tightens up and to hear the muffled screams. He alternates cheeks until both are bright and burning, hot to the touch and surely aching.
Kaeya will be lucky if he can sit after this.
Diluc doesn’t care.
He knows Kaeya likes it, anyway.
He can feel heat beginning to pool in his own groin, his release creeping up on him until he comes with a shout, come filling up Kaeya until it trickles out around his cock, and he keeping fucking Kaeya until the other man comes alongside him, and he fucks him through that too – the overstimulation hurts him, and it must be hurting Kaeya, but that’s the point, that’s what they want.
He fucks Kaeya until his head is thrown back as he screams, voice hoarse and like music to Diluc’s ears.
This is what they both want.
He uses Kaeya like this until he tires, until the other man is a sobbing mess beneath him. He fucks him on his stomach, on his back, forces him to take his cock over and over until he was nothing more than an exposed nerve.
When he finally pulls out, he climbs high upon Kaeya’s chest and feeds his cock between waiting and willing lips.
“If you bite me, I’ll break your teeth until it’s no longer a problem,” he threatens, and Kaeya just nods, eye wide. “Now clean it.”
Kaeya’s tongue is heaven against his cock – painful amongst the overstimulation, pain and pleasure blurring together until they were indistinguishable from one another – and he releases another load down Kaeya’s throat just to watch how his eye widens and he struggles to swallow it down.
Despite his best efforts, when Diluc pulls away come dribbles down his chin, staining his skin with white.
He looks beautiful like this.
Perfectly debauched, with his own come splattered across his abdomen and chest and Diluc’s come dribbling out of his red and abused hole.
Perfect.
“This is all you’re good for,” he tells Kaeya, and the other man has the nerve to look hurt at the accusation. “You know I’m telling the truth, that’s why you always come crawling back to me. You like this, you’re nothing more than a willing hole for me to fuck and you know it.”
“No,” Kaeya denies, but Diluc can hear the lie. He can see the way Kaeya’s limp cock twitches at the accusation, trying valiantly to get hard again.
Kaeya loves this as much as he does.
“Disgusting,” Diluc repeats his earlier words, pushing Kaeya away from him, clambering off the bed and headed for the door. Hand o the doorframe, he turns back to Kaeya one last time, just to take in the view.
“You know, you’re beautiful like this,” he says softly, and he has no idea if Kaeya can even hear him.
Not like it matters.
He leaves Kaeya like that, lying on his bed covered in come and torn clothes, blood staining his skin with all the other fluids.
He doesn’t see the way Kaeya is smiling as he leaves, a self-satisfied smile of a man who just got exactly what he wants and cannot wait to have it again.
And he will. He’ll come back to Diluc, or Diluc will come back to him, and this will repeat itself over and over until they finally tire of each other. They’re drawn together still, just like when they were younger, no matter how much they try to deny it.
They’re tied to each other in ways there aren’t words for, so tangled up in each other that sometimes it’s hard to unravel themselves.
When Kaeya and Diluc fuck, it has nothing to do with love.
Or so they tell themselves.