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Tendrils of ashen fire stained the Darknight Hero’s clothes, indication of a prior exchange that ended with blood on his hands. Diluc burned the moisture away with a shy lick of his vision, and content that he was clean enough, slipped his leather gloves back on and settled into a saunter across the shadowed streets of Mondstadt, concealed under the eaves of houses. There was a sheerness to the wind that lightly bit at his cheeks, a known coldness of the city’s nights and he tucked himself further into the hood of his overcoat, and walked a little faster.
The night had been a slow one at first, and Diluc was ready to relinquish Charles’ duties for the night to take the reign when the cacophony of an enemy camp sounded, and his weapon swung before he could think. It was second nature, movement unaided by thought and the rush of power surged within him, an animated beast with ground teeth and unsharpened claws. The creature that hid underneath your bed when you were five years old, and peeped through the ridges of your closet to watch you sleep.
He was alive.
But his animalistic thirst for justice was unseemly during his mornings at the Winery, so he opted for a mask and hood at night time instead.
Diluc was not obsessed with it- no-
He craved- no. Diluc was inherently knightly and he simply did not need the fucking title to show it.
The smatter of rancorous laughter had him halt, eyeing the distance between himself and the strangers before ducking into a branch of an alleyway, the smell of drink permeating the air pungently. It would have been oxymoronic for a winery owner to turn his nose up at the smell, but if inheritance could not make him like alcohol, then nothing could.
“Ah, if it isn’t mr darknight. What’s the matter, you lost?”
Oh. Diluc knew this fucking voice.
Knew it so well that the burn of familiarity settled hot in his stomach, quipped up the hairs on the back of his neck and moistened his palms. His stature was half engulfed in the mouth of shadows and his face was obscured by his mask and cloak, but Diluc had never felt so exposed, out in the open, the stench of battle on his hands, in front of him.
But Kaeya- Kaeya had no idea.
“I don’t humour drunks,” Diluc said shortly, analysing a way he could run away without alerting other people.
And Kaeya just laughed, that precious lilt of notes that painstakingly reminded Diluc of when they were both young with bruised knees, promising to be together forever. He clenched his fists. The laughter was deeper now, kissed by the lips of adulthood and littered with secrets that only those who knew him could know exactly what Kaeya was saying. But Diluc did-
Diluc did not know who Kaeya was anymore. Could never. Forever fenced from the entitlement of knowing what made him crease his eye in amusement, of what annoyed him the most that week, of the story behind every tiny scar. Diluc would never know.
He did not want to know.
“Oh, chin up, hero,” drawled Kaeya, his boots singing a little tduk tduk as he sauntered closer, his hair shining bright against the overhead street lights. “The nights still young. Such an esteemed figure like yourself should be downing victories at angel’s share, not stalking shadows.”
Then what are you doing here?
Diluc set his jaw tight, a screwdriver to the hinges. “I don’t drink.”
“Oh?”
There was a clear cut of incredulity wedged into Kaeya’s tone, purposefully enunciated to make Diluc’s skin begin to crawl and fester something terrible. It was as if Kaeya knew something that Diluc did not, and his quirk of a smile only served as a goad and it made Diluc uncomfortable in his fake skin, like the mask he wore was burning him.
When the silence drew on too long and Diluc felt as though he was a mouse before a hawk, he began to leave when a hand grasped his forearm in a grip so tight it made him pause. He swiped his head sideways, peering down at Kaeya, who was so far just only a moment ago. He did not have time for this. He had to go. He had to leave. But Kaeya’s eye was a blue-black hole in the darkness, an abyss that would whisper loud, sweet sways in your bed before pulling you under, arms behind your back and rope around your neck lest you try to fight back. Diluc did not realise he was breathing hard until he heard the swathes of air himself, a pounding in his eardrums and a lick of sweat down his spine.
There was blood on his hands and beautiful, pretty, lovely Kaeya just laughed.
“Wait,” Kaeya said uncharacteristically quiet, hand still strained around Diluc’s arm and collected himself with a sigh, the coolness of the weather like white clouds in the air. “I um- I need to ask you something.”
Hey Luc? Wanna sneak into dad’s alcohol again?
Diluc tore himself away, the pulse of the grip pumping hot blood there. “And what could the cavalry captain want with me?”
“…so you know who I am?”
“Hm.”
There was a shrewd smile lining Kaeya’s lips then, a pregnant shift in the atmosphere as he crossed his arms over his exposed chest, eye twinkling like a blinking star against the eye patch and Diluc was suddenly reminded of when they were seven, and Kaeya picked a calla lily for the first time, bright-eyed and tripping over his feet to show Diluc, and Crepus.
A laughter that was cruel and loud.
“You smell like a bonfire…busy night?” Kaeya pondered aloud, stepping that little bit closer so that they were face to face, a magnetism of red and blue and it took everything Diluc had not to step away, because how long had it been since he could smell the cold of Kaeya’s skin? A fresh, frigid thing. “The reports we knights have on you are sparse but, hehe, anyone would say that your hands never leave your blade. A hero like you deserves a little…break, don’t you think?”
And then Kaeya’a hands caught onto Diluc’s beltloops, hooking two respective fingers into them to pull the other impossibly closer. The instant rush of cold as Diluc was forced into Kaeya’s space was disorientating and pilfered the breath out of him, sending a shiver down his spine as Kaeya stared straight at him, straight into him, wearing a look that he had never seen before and Diluc was-
“Wh-what are you doing?”
Smirking, Kaeya laughed into Diluc’s shoulder. “What? Are you telling me the darknight hero has never been fucked before?”
Heat bloomed behind Diluc’s mask, because the crude words coming out from Kaeya’s mouth were-
Something he had not not thought of before, with Kaeya.
It was the fringe of puberty, white nights chockfull with filthy dreams and the utterance of his brother’s name into the darkness as pleasure engulfed Diluc whole, like a snake before a squirrel. He would soak his skin and the sheets with sweat, hair plastered to his forehead and breaths coming in laboured pants, shame soiling his boxers, the room blazingly hot.
There was no hiding from the core truths of his desires and Diluc was not stupid enough to not acknowledge it, but was stupid enough to sneak drawling glances at Kaeya when he thought he was not looking.
And now here he was, open and inviting, chest pressed against his, feet planted between his, eyes on him.
“You don’t know what you’re doing,” Diluc warned even though he made no attempt to move away, too spoiled from the fact that he was this close to the man who haunted his dreams with his pretty smile.
“Oh?” Kaeya said, and his tone was a tease, a lingering touch of breath on Diluc’s face and his hands snaked up Diluc’s back until they laced around his neck, looking like such a honeymooned couple. “Then you must really notknow who I am, mr darknight.”
This was- this wasn’t- Kaeya was the one who he shared his first joint with, the one who made fun out of him for crying when he accidently killed that ladybird when they were six, the one he sat next to every dinner time at the table, the one his father called a son-
His insides were burning, cooking themselves alive and Diluc ground his teeth together because this was not how it was supposed to be, how any of this was meant to happen.
He looked at Kaeya then, searched every crevice of his face which would relay to him that he did not want this, that he knew what he was doing, that he could possibly know who this faux hero’s identity was, because that had to be impossible, that could not happen.
“I’ve seen it,” Kaeya said, wrapping his arms further around Diluc’s neck, pressing them closer and closer and closer and Diluc’s insides were screaming, his heart pounding. “The way you look at me- ah, ah, I’m talking.
“But I just haven’t guessed whether you want to kill me or fuck me.” Or both. “So, forgive me for assuming the latter. I just figured that this would be the more…mutually agreeable experience.”
Diluc was an animal, strung along by instinct because how could he deny such a thing? Kaeya was asking for it, begging for it, so what kind of brother would he be if he did not indulge his little brother once in a while- ah fuck, he was so sick. “If you have found out that much, then shut up already.”
And Diluc was kissing him.
Violating Kaeya’s space by shoving his tongue down his throat, his burning hands pressing bruises into Kaeya’s hips as he steadied the both of them, curling into Kaeya, stealing away more parts of him. Oh Barbartos, he was already addicted, and Diluc was a beast in his path of devouring every single inch of Kaeya, swallowing down the keens and moans and reciprocating every one of them with another press of his tongue.
He yearned to feel more, to touch more, to hear the defining lilts of Kaeya’s voice sing in his ears, the burden of his hand at the back of his neck. Gods, Kaeya was so cute, so pretty, so willing…
Saliva smeared Kaeya’s lips wet and sticky and Diluc did not waste any time to lick across them, tasting himself and hearing the hiccup of breath Kaeya stole from the action. He looked at Kaeya, all flushed and pink-cheeked, blue eye shining bright and the quiet pants that left his mouth as he gathered his breath together, exerted.
Kaeya trailed his fingers over Diluc’s mask, teetering on the edges, teasing fate like he always did. “If I knew you were this pent up, I would have done this much, much sooner.” And when a single finger slipped under, Diluc did not spare any seconds to snatch Kaeya’s hand away, holding it tight, feeling the bones grind together and persisting even when Kaeya gave out a little pained whine.
“If you want this,” Diluc said, “play by my rules.”
But Kaeya had always been a stubborn piece of shit, something that Diluc knew all too well as the man slotted his thigh between Diluc’s legs, straining it into his groin. “Looks like I’m not the only one who wants this, eh, hero?”
Diluc rolled his eyes behind the mask, hard.
“Favonius knights and their priorities.”
I’m gonna be the greatest knight ever, dad! I promise!
Kaeya was grinning, his smile pouring out from his mouth and bleeding all over his face as he leant into Diluc’s neck, teeth grazing the flesh and Diluc bit back a moan. “Now, now, don’t tease me like that. Tell me exactly what you’re thinking. I hate dishonesty.”
Diluc would have cried with laughter under different circumstances.
“I would have thought that the knights would patrol the streets at night for the citizen’s safety, not gallivant around, looking for a warm bed like some cheap whore.”
There was a tangible silence and Diluc wondered if he had said too much, done too much, before an icy wind brushed through his hair, a kiss of cold on each of his ears and where Kaeya’s lips were on his neck, burnt hot like an iron pike in fire. And even as the apologies simmered on Diluc’s lips, Kaeya simply kissed him, a slow and gentle press of mouths before he outright bit him, and the look on his face when Diluc audibly startled was fox-like, a sly, conniving smirk lining his face.
“Let’s get two things straight here, mr darknight,” Kaeya laughed, like life was the funniest thing ever and Diluc stared at him, unable to blink, blind to everything but Kaeya. “Who is to say that I’m not working right now?
“And second, I’m not cheap.”
Taken-aback, Diluc was left with nothing to say and that, that was Kaeya for you.
Here he was, in a dark alleyway on a cold Mondstadt’s night, about to fuck his brother.
Time for a family picture, I think.
Diluc watched as Kaeya elegantly removed his offending accessories and jacket, jettisoning them on the cement anyway and stepped back until his back hit the wall and rose his eyebrows up in expectancy. And Diluc then glanced around, the wallowing darkness of the night, the sheerness of the cold and the moisture on the ground. Kaeya was a beauty, an inviting spread of arms and legs, a curl of smiles and dancing eyes.
And Diluc was all over him again in seconds.
Fingers slipped under shirts, nails scoring pink lines into skin as spit dewed on Kaeya’s lips, Diluc attempting to compensate all those fucking years he could have been doing this, forcing himself in Kaeya’s space, Kaeya’s voice in his ears, Kaeya’s fingers on his hips, Kaeya, Kaeya, Kaeya.
He wanted to-
Then Kaeya slipped away, flushed and breathing hard.
“We should go somewhere more…private.”
And only then did Diluc wake up from this delusion, his ears popping to the sound of strangers walking past, drinks in hand, and the loom of the peak of night upon them. He watched as Kaeya began to walk away, and Diluc followed him like a puppy, picking up his things along the way and the fact that Kaeya did not even pause to see if he was there had Diluc all the more infatuated with this man.
Because of course Diluc would follow him.
Promise me that we will be together forever!
The red-light districts streets stank of cheap perfume and cheaper sex and the walk of ease Kaeya took to them had Diluc following in the back ground, completely ignorant to the implication of that. He did not have the right yet- jealousy was bitter on his tongue despite it, because why not, as someone as beautiful as Kaeya? Who wouldn’t?
Oh barbatos, even his own brother could not resist.
“Hey Minnie, you alright?”
An older woman with striking green eyes stole a bereft glance at the intruder from beyond the reception of her shop before stealing another puff of her pipe. “Room fourteens free, hun. Got the strawberry one.”
Kaeya laughed. “Just how I like it.”
Diluc was jaded, head dizzy with scented oils and the intrusive nakedness of bodies all around him, but Kaeya took his hand like a lost maiden and led him to their room, looking as if he had done this a thousand times before. Because he had.
The room was small, appropriate for what is was being paid for, nothing more. Kaeya was already akimbo on the bed, fluffs of blue hair framing his face, boot-clad feet hanging precariously off the edge. He was waiting, loungingeven, as if he was tired from it all already. But Diluc knew better. Even though he claimed he did not care, his ears were always attuned to the sound of his brother’s name on the lips of alcoholics in his bar, the sleaze of one-night stands polluting the pure drinks in their flagons as the conversation turned even cruder whilst the nights dimmed from blue to black and he stayed there, cleaning cups.
He could blame them, but then Diluc would be a wretched hypocrite.
He studied Kaeya for a few moments longer, never minding the strangeness of it, hovering over the bed like a tall tree amongst rabbits. He shucked off his cloak whilst he continued to stare, kicking off his boots and leaning down onto the mattress with a knee, crassly creasing the duvet, deeply imposing.
Heat burned his blood hot, and Diluc was a rogue matchstick away from bursting into flames as the lines of Kaeya’s body stirred and warmed him, reminding him over and over and over again that this was real, this was not a dream, this was now. His now bare hand found the buttons of Kaeya’s shirt, fingering the material as Kaeya leant up into the touch, a quiet hum thrumming from his chest and resonating with the silent atmosphere, tinkling Diluc’s eardrums.
Diluc had seen Kaeya naked before, countless times throughout their stay together.
But this, this now, was completely and wholly different.
He was dark and hardened by years of martial training, a slender thing, something that Diluc could just throw over his shoulder and walk a mile with, flushed to his neck from the attention, almost squirming.
“Do you just like to stare? You have that kinda hobby, mr darknight?”
“Shut up.”
Kaeya could not possibly understand what it was that Diluc was seeing, what he was feeling, grimy with dirty secrets of years and years of yearning and dreaming and thinking what ifs. There was no way he could know the nights of torment Diluc spent alone when respite was only a few streets away.
Together forever?
He wanted to touch every inch of him, feel the thin line of scars from knighthood, of childish falls onto concrete, to know the story behind each and every one of them in permanence. Diluc wanted to press lips all over, taste the sweat from his skin and feel the undulations under his tongue, be affronted with the knowledge of how Kaeya would react. Run red lines with the edges of his teeth, and bite him until he pinkened and bled, and god, Diluc just wanted to ravish him whole-
fuck him until he was crying and--
Urgently, Diluc shoved his tongue in Kaeya’s mouth, hands skating along his hips, pushing him back with his shoulders against the bed when he attempted to follow Diluc’s mouth, because Diluc craved for that trip of absolute control, yearned to watch as Kaeya trembled from his touch and his touch alone.
The bed squeaked as Diluc’s fingers teased the opening of Kaeya’s pants, his palm coming to rest on the bulge that made them even tighter on his legs, Kaeya startling from the sudden contact, eyes blowing open from shock and voice possessing a whining tone to it, a petulant child who did not get their favourite toy. A brat.
Having to wear the half-mask was inconvenient to say the least, but Diluc did not think he would ever be ready for that sort of confrontation so it stayed, a barrier, a tangible swindle, a protection. The literal world was unarmed for that conversation. But he was able to see it all, the way his own fingers twirled and danced around the seam of Kaeya’s leggings, finally plucking open the button and revealing another strip of skin- flesh that Diluc desired to bite marks into. The dainty tuft of hair was arousing to see on his brother, and he placed a cradling hand on Kaeya’s lower stomach for a moment, unbeknownst to what on earth his own mind was thinking about.
His lips perched on the jut of his left hip bone, and Kaeya offered a quiet sigh in response from the top of the bed, lazily lounging in the light pleasure of Diluc’s touch, welcoming the bounding advance wholly. Kaeya curved his leg around him, the heel of his boot coming to puzzle-fit into the small of Diluc’s lower back, an anchor.
“The night’s only gonna get older, sir.”
Sir. Sir Ragvindr, he said it with dancing blue eyes and a smile that would eat you whole.
And Diluc just- he bit him. Hard enough to draw about an audible reaction, to indent the dna of his teeth into Kaeya’s brown skin, to leave his mark there for a few hours so whoever had him the next day would know that someone else had him first. Let them know that he was not their’s- and not yours, never ever yours-
He mouthed at the clothed erection for a moment, allowed Kaeya to respond with an arch of his slender legs, unceremoniously shoving his cock in Diluc’s face but Diluc only approved of it and peeled down his underwear to reveal the naked flesh, lightly smeared with pre. The smell of a man was rich in the air, and Kaeya tasted clean on his lips as he languorously tongued the crown of his dick, felt the smoothness of skin, the whole-body shudder.
Diluc grazed his lips along the crease of Kaeya’s thighs, pinkening the thin skin there before swallowing down his cockhead, feeling it plug his mouth with heat and fullness, and the keening noises Kaeya was making went straight to his own dick, strained uncomfortably against the binds of his pants. He ignored it anyway, humming to the taste of Kaeya in his mouth, the way the heat of him ran his own blood hot, hotter than it had been for a while, like a fire was cultivating within him.
“Nghh…Ah, that’s good.” Kaeya was whining softly into the air, one hand catching on Diluc’s hair as his fingers latched onto a few locks as leverage, ensuring that the man stayed there, ensnared between his legs.
After a few more lazy moments of half-hearted sucking, Kaeya instinctively shoved his hips upwards and Diluc choked, eyes watering from the sudden assault on his mouth, and with frustration warm in his head, he took his own hands, stealing catch of Kaeya’s hips and slamming them down back to the bed with unrestrained strength, digging the pads of his fingers into the bare skin, feeling the bluntness of his nails imprint through his gloves to curl crescents into flesh. He was not going to do follow the fancies of his brother, he was going to wring out the pleasure of the man the way he yearned to do it, just one of the many ways Diluc had dreamed of doing, just take and take and take, his hand around Kaeya’s neck-
And Kaeya-- oh, he just melted. Like ice in a pool of fire.
“Don’t move,” Diluc said, whispered breaths clouding the tip of Kaeya’s cock cruelly. “Not until I say you can.”
The crawling tremor that walked up Kaeya’s spine was palpable, and a blind man could see how he preened under such a thorough command, an attempt of usurper that he did not seem to mind. “Wanna throw me around like a doll, is that it?”
“…Something like that.”
Kaeya stared at him then, blue eye a glaring light amongst darkness before his body shuddered with unbridled laughter as if he had just heard the funniest thing ever, the notes reverberating off the walls of the room, singing songs in Diluc’s ears and Diluc was knees deep in mud, dirt in his hair and under his fingernails and that boy laughed at him from the top. And Diluc just sucked his brother’s cock back in his mouth, harshly pinching the fat of his thigh when Kaeya bowed again with a short cry, reminding him that he was not allowed to do such a thing, that he could not move unless Diluc said he could, that he could lay in this bed for him all night long, for days and days, forever and ever. For as long as Diluc wanted.
The scent of Kaeya was the most potent here and Diluc wrung it for all it was worth, breathed it in deeply though his nose while his mouth was stuffed full of his cock. He sucked it in as far as it would go, kissing the entryway of his throat and Kaeya was being such a good boy, trying his best not to move, his fingers strewn into the fabric of the duvet, legs straining as they spread further apart, accommodating Diluc between them.
“Mmmn…” Kaeya sighed, his voice a quiet tease into the atmosphere, his chest rising and falling in tune with his pants, teeth gnawing on his bottom lip to subdue his noise. Diluc supposed it was pretty cute.
But Diluc would make him loud, make him cry, make his throat raw from abuse.
He came back late that night, and his lips were swollen pink, crawling through Diluc’s bedroom window, his shirt askew.
Diluc smeared the beads of precum on the tip of Kaeya’s blushing cock with his tongue, tasting it deep before swallowing it, made sure to savour every part of the meal like it was his last supper. He held Kaeya’s hip bones in his hands, pressing them down when he shook too violently and just continued to worship his cock, dragging his tongue along the underside, grazing his teeth ever so slightly when Kaeya became too comfortable.
It was intimate. To be fucking his little brother’s cock down his throat in a dingy hotel room when said brother had no idea who he was. And fucking crazy, Diluc could admit that. But he could not stop himself, the hedonism leaking out of him in the form of how he kissed Kaeya’s dick like something holy, wanting to drown himself in his smell, in his innermost crevices and hide there, be in him.
“Ah, sir-“ Kaeya broke himself off, stuffing a gloved hand into the crease of his mouth to muffle his sounds as he shivered, toes curling, heat rising in red on his cheeks. “Wait, wait, I’m gonna- “
And Diluc did not need telling twice. He held him down roughly and wrapped him in his mouth wholly, felt the pull and jut of the shaft as it spilled white and hot strings down his throat, how Kaeya’s cock throbbed on his tongue, weeping pleasure into his mouth, how his legs trembled in tandem even as Diluc bruised them into submission. He continued to lap lazily at the slit even as the cock began to soften in his mouth, felt the unforgiving dig of Kaeya’s fingers in his hair as he whined from sensitivity, tugging hard on his roots like he was trying to weed them out.
Diluc felt his own cock ache, trapped in his own confines and the heat of Kaeya’s release stained his throat and filled his stomach, and he felt warm and dazed as his lips slipped off Kaeya’s dick with a pop, the buzz of orgasm alight on Kaeya’s face. He reached down, body shifting to align with Kaeya’s as Diluc stole a kiss, tongue sliding down Kaeya’s throat and licking all over, deepening it at every chance. The survival urges to breathe forgo him, and Diluc panted into Kaeya’s mouth, felt the vibrations of his whimpers, the choking of breath as he struggled to breathe.
“St-stop, mmngh! Haa…mmnn.”
He needed Kaeya to taste himself on his own tongue, to swallow down his own cum like something used and dirty.
The slick of saliva was smeared across both their lips, a crude sound in the company of normalcy but Diluc would not let up as he continued to dominate, felt the exigent press of Kaeya’s feet at his back, the helpless shove of his hands on his shoulders, trying to push him away like Kaeya did not want him there, did not want him.
“Hnngh! N-no noo, ahhh-“ And Kaeya was whimpering a harsh scream into Diluc mouth, his body writhing, nails carving red marks through Diluc’s clothes to his chest as his hips gyrated in an erratic rhythm, legs quivering and toes curling so tight that it had to be painful. Diluc removed his lips when he felt the sting of Kaeya’s teeth on them and shuffled back a little to see how Kaeya squirmed in his own skin, his skin completely blushed in exertion, hands scrabbling for purchase in the air now and he seemed imbalanced, as if he could not quite come back to reality from wherever he was, to himself. Watching on, Diluc drank in the sight as Kaeya’s pants began to subside, the world feeding itself back to him and he sighed, tired.
His eye was dewy and eye patch slightly askew, cheeks blushing all pretty like Kaeya just was and spit soiled his chin, sticky and wet like he could not keep it in, or perhaps it was Diluc’s and he would just walk out of the room wearing his dna on him. Diluc gulped at the image and regarded how Kaeya used his pretty, long fingers to remedy the position of the patch and run a hand through his dishevelled hair, the other coming to rest shakily on his bare, sticky stomach.
Oh. Diluc was a madman behind his mask.
“You came again?” Diluc was not really asking it and was otherwise stating it, his voice possessing an air of awe, a croon curling around the words like a cold cat’s tail.
Kaeya breathed out laughter like he was on top of the world. “Humans take to pleasure like they take to licking the bottom of Barbatos’ feet.”
“So what?” Diluc said, staining his hands with the mess on Kaeya’s stomach, a curious child’s movements. “Then that makes you no different?”
There was a hint of something wistful in Kaeya’s expression despite the situation, and Diluc’s breath suddenly caught in his chest when Kaeya looked back at him, like a god himself staring at one of his oh so devoted worshippers. “Who knows? I’m not much of a believer. May Barbatos damn me, haha.”
It was almost a routine now, for the little blue-haired boy to steal his red-haired brother’s hand and run in and out of the pews, carefree in the way he moved and deaf to the words of god—
“Oho?” Kaeya giggled, a light, airy thing that had Diluc snapping his attention back to him. “Am I sleeping with a religious man? Ah, would you like me to call you father—”
Diluc’s hand slapped over Kaeya’s mouth before he thought twice, his arm moving as if haunted but the sound resounded, a loud slap that cut the room in half, Kaeya beneath Diluc on a bed alone, no one else there. He felt the ringing sting on his palm as he swiped it back, ready to apologise into the forced silence, the splatter of red on Kaeya’s face burning bright flames in his mind.
“Ah, has someone got daddy issues?”
Yeah, fuck this guy.
Diluc just rolled his eyes. “Turn around.”
“Yessir.”
The curve of Kaeya’s back was a tempting line of artwork, one furnished by a professional, setting the paradigm for beauty, for pure fucking art. His hips were lean and his waist sculpted thin, small enough that Diluc could wrap his hands around it and have his fingers kiss and Diluc’s dick just ached delightfully at that.
Here, in this cheap hotel room, Diluc felt like the richest man alive.
He squeezed and twisted the time he used to marvel Kaeya’s body, spent every second in indulgence and coherence, ran his fingers over the undulations of his spine and bit at the soft skin of his hips where the flesh took to, kissed in the same place when Kaeya squeaked from the pain because Diluc should hold back, but how could he when this was in front of him, for him?
Diluc smoothed Kaeya’s hair to the side and sucked bruises into his neck, painting colour there like an inspired artist who had never held a brush before. Something that ran on divine revelation and prophecy, driven by a force that he could not fathom or maybe understood too well for it was the nature of human, of a man starved from a world who stole everything away from him.
Don’t leave me. You’re my best friend.
“Sir, hmmm, having fun there?” Kaeya hummed quietly, obviously content with the ministration despite the abrupt fall down from action in comparison to before, as if he had not just cum hard twice consecutively. “Want some oil for my back? Us knights could use a massage.”
Diluc wrapped a hand around Kaeya’s neck and shoved his head down into the pillows with an oof. “Shut up.”
He could kill him then and there. Suffocate him and watch as the life ran from his body, witness the writhe of a dying man, hear the sounds of death and Kaeya still would never know who he was.
I know when you’re lying, Luc.
Sliding his hands down, Diluc cupped Kaeya’s ass and squeezed the plump fat of it, the mould of soft flesh pried the cheeks apart to reveal his hole. It puckered under the sudden attention and Diluc was on him within seconds and laving his tongue up and down in slow movements, tasting the musk of Kaeya, the salt of his sweat. It triggered a shocked yelp from Kaeya, his toes wriggling and sound muffled from the sheets, head snapping up and around to glare at his partner.
“Oi, wh-what are you-“
“Hm?” Diluc breathed into the cleft, wet and hot on Kaeya’s skin. “Has no one ever done this to you?” You beautiful, beautiful man.
The strangled noise Kaeya cried out in retort was enough as Diluc used his fingers to keep Kaeya’s ass open, letting his tongue lay wet and flat against the opening, teasing the furl of muscles until they relaxed for him, until Kaeya surrendered and keened and preened from the utter devotion Diluc was giving him. Kaeya was noticeably heated and gasping, saliva soaking the sheets as he tried not to make any noise, his hips canting upwards despite his initial rejection and Diluc lavished it all up, crazed.
“You like how that feels?” Diluc spoke into him and relished the flutter of muscles as a response.
“Fuck- fuck off- mmgh!”
Kaeya was biting down his moans, the sound leaking out into half-choked out whimpers that only served as fuel for Diluc to pursue his task, his hips swivelling side to side until Diluc grabbed hold of Kaeya to tug them up, allowing his tongue to go further in.
He had never felt so hot, so…overheated. Diluc was sweating, droplets formed at his forehead and his shirt stuck to his back, and his hands were clammy as he ran them along the slender form of Kaeya’s body, addicted to the delicate extend of bones, the dance of muscles and the meat of his flesh. Diluc wanted to see him come apart completely, to pick at the puzzle and make it incomplete, to pierce his teeth through it and eat and feast.
Bringing his face away, Diluc patted Kaeya’s ass fondly. “Keep this up.”
The confused grumble Kaeya sounded was cute enough that it had Diluc blushing as he fondled for the oil left by courtesy of the hotel but the saccharine smell of strawberries when he opened the cap had him frowning. It was sweet, too sweet for the winemaker. He clambered on back to the bed after throwing off his gloves, legs bracketing Kaeya’s hips as he greased his fingers with the scented oil, the viscosity of it making it go slick slick when he rubbed them together. Diluc was breathing harder than normal and he could hear the reverberation of it in his own ears as if it was an external ring, the resounding thump of his heart knocking on the doors of his ribcage.
He ran a moistened finger down Kaeya’s ass, saw how he countered with a full-body quake before pressing the pad of it against the wet opening, wild with the way it rejected him, that Kaeya was denying him before he forced it in, feeling the tight heat envelope him. Kaeya audibly hissed when it happened, his face turned on its side so he was staring at the door now, quite breaths leaving him as he struggled to keep his hips elevated, tried to be accommodating, tried to be a good boy.
Diluc did not blink as he examined his finger be swallowed up by Kaeya’s hole, doing at least five sets of counts down from ten to distract himself so he did not just shove his entire hand in, because Barbatos, the way Kaeya ate up his finger was as if he was famished, the tightness of the channel unrelenting and refusing to release him. He was a natural slut and Diluc would never have known if he did not follow Kaeya through the dark Mondstadt streets, evidently appearing to be doing or going to be doing something carnal what with the way Diluc snubbed everything that was not Kaeya, tunnel-visioned to the way his legs moved and his hips swayed.
“Ah, ah, more..!”
He was not to blame for this.
Diluc introduced another finger and his own cock was throbbing painfully at the way Kaeya’s hole just slurped it up, the way it so easily accepted another invitation but the words this is your little brother rang cacophony in his mind, a shrieking reminder of the terrible situation. A seemingly innocent one-night stand that he was using as a front to fuck the one thing he had always, always wanted but could never ever have.
You could not fault Diluc for deceiving Kaeya this way, not when he was putty in hands, a strangle of moans and whimpers, teeth biting into skin and red-cheeked arousal. His pretty dick was hardening again, despite its abuse because Diluc was treating Kaeya to a meal of pleasure and the man could not help but eat since it was Diluc who was making him feel so goddamn good.
“Nnngh, hah…fuck, fuck,” Kaeya was mumbling into the pillows, damp mouth spotting on the cotton as he drooled. “Oh sir.”
He thrust the fingers in, as deep as they could go before beginning to stretch him out from within, and Diluc could feel the heat of Kaeya’s body burning his skin and sought to go further. Kaeya began to buck hips back like an animal as Diluc dug in, rubbing against his inner walls and witnessing how his naughty cock dripped pearlescent droplets onto the bedsheets, and the sight was so filthy that Diluc went in harder, reached in deep and curled his nails against his prostate that just made Kaeya cry out like a whore, his voice hiccupping gasps of indulgence and pure indecency as Diluc just continued to molest that spot.
“Waa- wait! Oh, oh, mister please- hnnngh!” Kaeya’s hips arched into the fervent touch despite his protests, just like the fake Diluc knew him to be because Kaeya was taking to this treatment like he had done it a million times. And Diluc was more than aware of it, considering the many men and women he had seen steal Kaeya home from evenings at Angel’s Share. Kaeya wanted this. He wanted him.
He wanted Diluc.
And Diluc would give and give.
He prodded a third finger inside and the stretch was enunciated with the way Kaeya’s voice lilted notes, higher and higher until the breath was struck out of him because Diluc did not give him any time to adjust as he probed and poked, rubbed that sweet spot that made Kaeya see stars, made him choke on own spit and thrash his head side to side, attempting to grasp comfort as Diluc drowned him in pleasure after pleasure. As if he was trying to kill him with it.
Diluc slithered the hand that was not preoccupied with fucking the life out of Kaeya to Kaeya’s cock. After watching it, hard and swaying to the motif of Diluc’s thrusts, dripping wet all over, he grabbed it like it was his to own, wrapped around the base as Kaeya keened, uninhibited.
“How greedy are you?’ Diluc asked, holding the shaft in a tight fist even though Kaeya was whining at him to stop. “Leaking all over the bed like this. You’re an insatiable little thing.”
“Yeah, yeah, fuck- let- lemme cum, god, please…”
Fuck. How could anyone resist? The way Kaeya arched his spine and his ass, toes curling into knots, his neck craning to glare back at Diluc, his eyes stained with unshed tears, cheeks flushed and lips bitten half-raw. His cock was dyed pink at the tip, all the blood rushing there as Diluc held it steady while he continued to thrust his fingers in and out of Kaeya’s hole, driven half-mad with the dirty squelch squelch the motion was making.
He could not take it anymore.
So Diluc released the hold he had on Kaeya’s dick, a little rougher than was wholly necessary before finally, finally undoing the buttons of his own pants and having his erection bob out of its confines, dribbling sticky, wet cum. The sudden exposure of air on his most sensitive part had him groaning, had Diluc leaking a little trickle onto Kaeya’s naked ass, had him pumping himself a few strokes of needed relief.
“How do you feel?” Diluc asked, tone low and crooning, stained with arousal. “You ready for me?”
Kaeya heaved a heated plume of oxygen, his head budding from the bed when he began to raise himself from it, shaky hands planted like roots on the mattress. But a wave of shame smacked Diluc across the face then and he was shoving Kaeya’s face back into the pillows, deaf to the refusing garble of noises, the dishonour of what he was doing making his ears hot.
This is your little brother now, Luc.
“Don’t get up.” His hand was wrapped around Kaeya’s neck as he said it, frigid and stony, the heat from his palms scalding against the inherent chilly temperature of Kaeya’s skin. “Don’t you dare turn around.”
Kaeya did not say anything and the dissenting muscles of his back relinquished their power as he willingly surrendered his head back to the bed, completely blind to the stranger who held him down from the back, caged him there like an imprisoned animal. Diluc would never become privy to why Kaeya so simply yielded his body to someone he did not know, would never know if Kaeya really thought of himself as such little worth, would never know if Kaeya really wanted this or not—
The initial press inside was almost too much and Diluc had to bite down on his own lips to curb the overwhelming desire to climax right there and then, because Kaeya’s wet hole opened up to him so easily, sucking the crown in even though it stretched him apart beyond relief, even though it should have been too much, Kaeya’s body just wanted it. He watched Kaeya’s ass swallow him up as Diluc fed his cock into Kaeya, slowly and slowly, Kaeya’s hands fisting the sheets beneath him, spit dribbling from the corner of his mouth as he struggled to breathe, grappling for a chance to regain himself before he was fucked dumb and stupid.
He was saying something, or trying to but Diluc did not have the patience to attempt to understand any of it as his palms sweated as they gripped Kaeya’s hips for balance, as his own breath came in heavy grunts that felt as though the air was getting knocked out of his lungs.
Diluc had dreamt of this moment so many times it was practically painful to be doing it, his heart aching with respite at the fact that this was actually happening, that this was the real he was in, that Kaeya was here, with him and only him. Even if he did not know it was Diluc there with him.
“You’re good, you’re so good…” Diluc was whispering under his breath, completely tethered to this feeling of warmth and wetness, of being inside Kaeya. He kept going further even as Kaeya’s body trembled and threatened to collapse until he was fully sheathed inside.
Diluc was already addicted.
The seed of arousal at the pit of his stomach was sprouting and Diluc felt it grow throughout his entire body, ensnaring him to the feeling, focussing all of his senses to the image, making him know nothing else but unadulterated pleasure and carnal desire, marooning him to it. He was becoming blind to all else, feverish with it.
He pulled out with a loud groan then pushed back in with another one, Kaeya’s hole suctioning him so deliciously that he did not even know right from left, only knew that he wanted more and more and more. Diluc was building a steady pace and sweat dripped down his forehead, his hands bruising marks into Kaeya’s hips as he held them steady, punched back in with such vigour that Kaeya was crying out each time, moans wrenched out of him like he could not hold them back anymore, selfishly loud in the small room, oblivious whether someone heard them.
“There you go, fuck yourself back on me- yeah, just like that,” Diluc hummed, like a parent complimenting their child, using one hand to hold the tail of Kaeya’s hair, scrunching it between his fingers. “Such a good boy.”
The words were filth under his tongue but Diluc was a stranger behind the mask of the Darknight Hero and Kaeya preened so well under praise, unravelled so wonderfully that Diluc could not think to think twice. As Diluc continued to fuck into Kaeya’s heat, unrelentingly at times, his grip on Kaeya’s hair in time and effort loosened the tie of his eye patch and it was not until Kaeya tried to claw back at him, did he then realise.
Even though Diluc had known Kaeya ever since he was five years old, he had never seen his right eye, had been standing in the doorway to the bathroom when his father had looked at it and rapidly covered it back up for the first and last time. It was a taboo topic and Diluc respected that even amidst his childish curiosity because Kaeya had asked him to. But now, now—
“Wa-wait!” Kaeya whined, his voice a wheeze of toil and lasciviousness accompanied with a line of desperation. “Please, ahhhhgh, oh, fuck. Stop-“
Diluc did not stop.
His hand, scarred from battle, stitched together in moments of haste so it healed badly and discoloured from burns, was big and strong as it pushed back on Kaeya’s advances to move back up, staunchly keeping him there even as Kaeya abruptly began to cry, his tears further soiling the sheets and toning his voice into something weak.
“No, no, don’t wanna, please, please…”
Kaeya was begging and Diluc began to fuck him again, hard and in earnest, listening to his sobs and protests, watched how his hand crawled to the one Diluc had in his hair and clutched, nails cutting skin and painting red lines that beaded ruby red blood. The eyepatch had flown to the edge of the bed and Diluc leaned over the curve of Kaeya’s body, his breath hitting the back of his neck.
“It’s okay,” Diluc soothed even as he panted in tandem to his plunges. “You’re doing so well, so, so well.”
But Kaeya just sobbed. “Ahhh, mmgh- I’m sorry. I’m so-sorrrrry.”
Their relationship was too far gone, irreversibly lacerated and ruined so Diluc could only pretend, could only fake his compassion as he fucked into his brother like an animal, something starving, something primal. He had never felt like this, so close to someone who laid bare in front of him, all prime and perfect. Diluc could have been able to see it, the part that Kaeya hid behind his eyepatch, who he truly was but Diluc was already hiding behind his own mask.
The stench of sex and sweat tainted the air and Diluc was swimming in the deep end, overheating with how fucking good it felt, how fucking good Kaeya was. He was an angel, he was everything, he deserved everything. Kaeya was whimpering on breaths of babble, too caught in it to even swallow his own spit, too far gone to even know where he was.
“Hnnngh, hah…sorry, I’m sorry Luc.”
And Diluc was cumming. Like a tidal wave, it lurched out of him and spurted deep within Kaeya, filling him up to the brim and then some and Diluc was breathless, fucking in and out like something uncontrollable, like something that could not be stopped. He did not want this to stop.
He wanted to do this every day, he wanted to come home to Kaeya, he wanted to wake up to Kaeya. Wanted to be the first thing he saw when he woke up and the last thing when he went to sleep. Wanted to brush his hair when Kaeya could not be bothered to, wanted to massage his feet when he had a rough day, wanted to watch him when he slept.
Kaeya just gasped, barely any sound leaving him as his body shuddered and shivered, his legs quivering as they still continued to stay up, his face pressed deep into the bed. He was moaning when Diluc pulled out of him, when the mess of both their cum splattered down his thighs, white streaks painted across and was then cowering into himself, exhaustion restraining his limbs to limpness as Diluc watched over him, wondering if he had fallen asleep.
It was silent and Diluc felt…disgusted, disgusting. Like he had done something wrong, like his hands were stained with something other than the blood of monsters.
He reached over and held the eyepatch in his hand, running his fingers over the lavish material and put it next to Kaeya’s face, obscured with the mess of his hair so he could not see anything and as Diluc withdrew from the room, he left without the mask.