A tranquil nightfall has blanketed the estate. The bustling maids have long since turned in for the night, as each light is extinguished and the manor decends into darkness once more. The only sound now being the gentle breeze of a north-easterly wind fanning the expanse of vineyards that stand at the base of the hill.

His ornate bedroom door creaks open with it's familiar sound, followed by a careful thud as it's thoughtfully closed again. Footsteps quietly pad across polished ironbark floorboards towards his bed, but Diluc isn't disturbed by the intrusion, he was already anticipating their arrival.

Soon he'd feel the weight of his so-called 'brother' climbing into his bed, lifting the decadent Egyptian sheets to escape the brisk night air.

Cascades of sapphire hair blend with untamable ruby.

Diluc lays prone with his eyes remaining shut, heavy lashes gracing porcelain cheeks, pretending to be asleep as always. He ignores his brothers already wandering hands across his body, though with practice they'd learned what places would make him arc into the touch. As if each dip and tremble are diligently memorised landmarks on a map. The gentle trace of fingers were soon followed by the wet sounds of lips and tongue, leaving a chill on his skin as his cream nightshirt is unbuttoned and pushed off his pale shoulders.

He remembers when they were younger, despite only being 5 months older than the sapphire haired boy, Kaeya would always sneak into his room at night after a bad dream. They were innocent then...

He couldn't pin down when their relationship started to change... When Kaeya started to show the signs. On occassion he might catch the sun-kissed boy staring, a young Diluc thought it strange when the other boy hurridly looked away as a blush graced his cheeks. As they grew older, they'd successfully entered the Knights of Favonius as per their fathers wishes. During arduous hours of sword training, he found again those eyes upon him, but that sapphire gaze seemed to hold a different kind of aura..

The once curious gaze of his little brother seemed to be manifesting into that of unquenchable hunger.. But there was a persistent gnawing in the back of Diluc's mind, that this behavior was wrong. Even if they are not bound by blood.

As such, Kaeya was always the instigater.

These secret trysts went unspoken between them during daylight hours. As far as Diluc was concerned, they didn't even happen.

So he refuses to respond, their dance always starting this way. Baring the way Kaeya's ministrations trail electricity in their wake and pool heat low in his belly. Diluc's teeth are clenched as he focuses on keeping his breathing even.. until that small plastic pop sound. Lubricant, likely stolen from their fathers dresser. Kaeya did always have a knack for thievery. The bluenette was clearly in a rush tonight and Diluc was fine with that..

His body starts to tremble, but he refuses to believe its from anticipation.

He soon feels the trace of Kaeya's fingers ghost along the back of his porcelain thigh, a silent instruction to lift his knee, while shifting his tanned body to hover over Diluc's contrastingly pale one. Strangely though, he notices that Kaeya has paused his movement and stays poised over him.

Like a predator about to consume it's trapped prey..

A frown knots Diluc's brow and curioisity gets the better of him, finally turning his head to gaze up at his brother.

Their eyes meet in the darkness, bodies illuminated only by the moons rays through thin drawn curtains. He tries to ignore how perfectly his brothers body is filling in.. Rich caramel stretched taught over lean chisled muscle, it's hard not to reach up and touch..

An impish grin curls Kaeya's lip as he takes that moment of attention to firmly press a digit to the elder brothers entrance. Ruby eyes widen at the intrusion with a sharp intake of breath, its the only reaction he allows - but it's all the encouragement Kaeya needs as a hum rattles his throat, amusement tainted by desire.

Diluc feels his cheeks heat up, Kaeya knows by now that he prefers just to zone out, like this isn't his brother fucking him at night... but it seems he wants to do things differently tonight.

Those sapphire eyes darken with lust and seem to be ravaging over his form in kind - Diluc hates it. Seeing the way his brother gazes at him, while poised possessively over him like this makes him feel exposed. They're just teenagers at the height of raging hormones - that's all Diluc wants to put this down to. But the way Kaeya was watching him right now felt as if he was about to be eaten alive! Apprehension swelled like a pressurised balloon in his chest and in response he turns his head away.

Wrong move.

In one swift movement Kaeya drops to his elbow and suddenly grips a handful of wild red hair, forcing the elder brother to meet his gaze once more as he looms over him. The movement wrenches a sharp hiss through clenched teeth, a brief moment of alarm strikes Diluc at the roughness of it but he's given no chance to retaliate. Kaeya wastes no time and inserts a second digit down to the knuckle - Diluc arches his back, the sensation is intense but not unbearable... the movement causes their bodies to touch and it sends a wave of electricity across his skin.

His soft features twist with a pointed glare up at Kaeya.. whom only responds with a playful nudge of nose against nose. Tonight is different, and he doesn't like where this is going.

He's making it too personal..

Kaeya's fingers quickly set to work, still not quite practiced in their movement but managing to prepare him all the same. Each swipe and curl of those tanned fingers inside him has his cock pulsing and swelling with desire until it starts to ache. Both pale hands are clenching the bedsheets at his sides, refusing to touch Kaeya in return.

"Just.. hurry up..." The redhead grits out quietly under laboured breath. Generally, they never speak. Not wanting to risk getting heard by one of the maids or Archon forbid, their father.. But he wants to hurry this charade along..

Kaeya's diamond gaze glints with delight, his smile sinfully sweet as he leans their faces close to brush his lips against a pale ear, voice deepened with lust, "Eager are we..? With pleasure, brother.."

A shudder wracks the redheads body in response, "You're not my brother..!" He spits back just above a whisper.

Kaeya only hums once more in response, before slipping his fingers free from the others body.

The hand at the back of his thigh disappears before he hears a wet slapping, Kaeya is getting himself ready, slicking his own hard member with lube. The bluenette has pressed his forehead to Dilucs collarbone, panting softly against his pale chest.

"Diluc..." A hushed but impassioned whisper.

Don't say my name.. He desperately wants to bite back, but the words die in his throat. With them both almost being 18 now he figured his brother would have moved on to women and stopped toying with him by now, figuring he was just the practice run.. It left a bitter taste in his mouth.

Just use my body and get this over with..

He's drawn back from his thoughts as Kaeya nuzzles at the crook of his pale neck. There's a sudden pressure as his brothers cock is pressed against his entrance and by reflex, he spreads his legs wider to accommodate. Immediately cursing at himself for the involuntary move, practically inviting him in.

"..Diluc."

This time it was a command.

He wasn't sure when he'd squeezed his eyes shut, but hearing his name whispered that way prompted him to open them again. Kaeya's diamond gaze was staring back at him with such intensity it took the redhead off-guard. For the first time in a long time, Diluc couldn't read the expression on his brothers face..

In the next breath, he felt the acute pressure of Kaeya slowly pushing into his body. His fists twist hard in the satin sheets, mouth dropping open as he pants heavily from the intrusion filling and spreading him. Ruby eyebrows knit and curl upward as his eyes become half-lidded and clouded with lust, in what must have been a most lewd and wanton expression...

Kaeya held his gaze but almost looked pained. Mouth dropping slightly agate as well but no breath left his lips, cheeks blushing heavily as he breached his brothers body. He shakily reached a hand to brush back crimson bangs from his brothers face, captively taking in this most seductive moment.. Once fully seated inside, he released the breath he'd been holding and dropped his forehead to Diluc's. Their breaths mixing as both panted heavily in the dark.

They stayed that way for only a moment while Diluc adjusted, sweat beading on their pressed foreheads.

This was... intimate.

It wasn't supposed to be.. Diluc preferred it when he was flipped over and fucked quickly and sloppily and it was done. A quick and undeniable high before his brother disappeared back to his own room, then Diluc would finish himself off and turn in for the night, like it was just some messed up dream.

He needed this to be over with already..

Hooking both his legs around Kaeya's waist and giving a squeeze was all it took to get him moving. Kaeya sat up and pulled back enough to leave his tip buried before plunging back inside - hard.. an audible slap of skin against skin. A strangled gasp was ripped from Diluc's throat as he threw his head back, red locks splayed over his goose-down pillow.

A deep gutteral groan emanated from Kaeya as he started a heavy, painstakingly slow pace... drawing out slowly only to slam back inside, it was driving the redhead crazy..

There was something deeply erotic about being able to watch Kaeya fuck him like this... It emblazoned a dark carnal desire in the pit of his stomach that he desperately wished he could deny.. but his thoughts were a jumbled mess now. His cock strained almost painfully as it bounced untouched against his stomach.. Diluc yearned to just tear his hand from the sheets and quickly jerk himself off, but as usual out of sheer pride, he refused to cum in front of his brother - Refused to give Kaeya the evidence that he was getting off on this.

But tonight was different, after all..

Kaeya was changing the game, he wasn't just using Diluc's body anymore.. He was turning their usually one-sided affair into ... ?

The bed shook with each measured thrust.. driving a moan from Diluc with each punishing smack.

The high was intoxicating..

"Diluc... mmmn... Diluc... ahh.." Kaeya breathed as he fucked the pale body beneath him, starting to pick up the pace as the pressure built in his loins, pleasure coiling tighter and tighter in his gut, straining for release.

The redhead was delirious, mind fogged with lust and lost in their vulgar act.. But then he is dragged sharply back to reality when a hand enclosed his weeping cock.

"Ahh- Fuc-!" Diluc snapped a hand over his mouth and groaned obscenely into it.. He glared daggers up at the mischevious grin beaming back at him. Pre-cum leaked in streams onto his stomach and his gut twitched as he desperately held himself from cumming right then and there.

Kaeya hadn't moved his hand, but he had slowed the drag of his cock in and out of Diluc's body, seeming to enjoy watching the redhead suffer.

With a snarl he shifted his hand from his mouth to restrain the wrist at his engorged cock. "What.. What are you.. d-doing..." He managed, out of breathe from the sheer effort of holding back his orgasm. He didn't mean it as a question - rather a warning that Kaeya was absolutely over-stepping the line.

The sapphire haired boy merely smiled, giving the cock a squeeze and eliciting an undignified whine from the redhead in response. Kaeya leant back down on his elbow to give a playful nuzzle of Diluc's nose.

"To put it simply, dearest brother... I want to watch you cum for me..." Kaeya's silk voice practically purred, his tone is playful but it feels mocking.

Diluc's eyes widened in shock and he gripped the caramel wrist tighter.

He's taking this too far... I can't ...

"No, no... don't... st-sto... ahh.. sto-!"

To his dismay - Kaeya instead shifted to cover Diluc's mouth with his hand.. "Sshhh.. they'll hear us.." Though he got the distinct impression that was not the reason for him being muffled.

This isn't happening..

Diluc tried to shake his head, desperation etching his features but Kaeya held him fast, the devious smile never faltering. Before Diluc could react, a thumb sweeps the overly sensitive head of his swollen cock, the grip then tightens and starts to jerk him in time with adruptly faster, shallower thrusts into his body.

"Don't hold back... cum for me... Diluc..." The whisper tickles his ear, the words burning across his mind.

It was more than he could take... His hand dropped back to grip his bedsheets as if holding on for dear life. Ruby eyes rolled into the back of his head and deep, wanton groans left his throat only to be stifled by his brothers hand. His skin was on fire as he feverishly bucked his hips between Kaeya's tight fist and the cock buried in his ass. Cheeks flushed crimson, eyes heavy and blinded by mind-bending euphoria. Streams of cum smattered his stomach and dripped down Kaeya's slender fingers. He's never had such an intense orgasm before...

Stars danced across his vision, mind swept clean. Nothing else existed in that moment but pure ecstasy..

His thighs trembled hard as his body gave a few final pulses, riding out the high. Before collapsing back into the bed with laboured breaths, skin glistening with sweat.

...Kaeya...

It's the only thought left, but he does not allow the name to grace his lips.

Kaeya watched it all, took in the display as Diluc came hard beneath him, by his own doing... He shakily lifted his hand from the spent cock as if inspecting it... Almost timidly, a pink tongue lapped Diluc's cum from his fingers and a low aroused groan reverberated in his chest.

Diluc barely registered as his legs were pushed up over Kaeya's shoulders and he was practically bent in half. The hand no longer covered his mouth as Kaeya instead fisted the sheets either side of Diluc's firey mane and began a brutal pace fucking into his body, by now desperately chasing his own orgasm.

"Oh Diluc... unhh... Diluc... aahh..."

The bed creaked and shook beneath them with the intensity, forcing the redhead to press his hands to the headboard, less his head get knocked into it... He'd normally feel paranoid they'd be heard, but in the throws of ecstasy he couldn't find the will to care.

Kaeya had lost rhythm and he felt as the heated cock inside him pulsed with release, spilling his essence deep inside him. The tanned body shuddered with impassioned moans as he sloppily finished off with a few final, lazy thrusts. Before his arms trembled and gave way to collapsed in a tangled mess with Diluc..

Both boys were struck with after-glow as they caught their breath in the still room. The moon was high over the winery manor now, the once gentle breeze outside now nothing more than a whisper. Diluc didn't know how long they stayed like that, his head swimming, in turmoil with what had just transpired between them..

That was... mind-blowing. He was simultaneously disgusted with himself as he was in awe of never having felt so good during sex before. Ruined such that he worried the touch of his own hand could never again compare to this act... it sickened him.. and yet he craved it so much more...

He felt Kaeya take a deep contented sigh and lean close above Diluc once more, a foreign emotion blooming in his chest as their eyes meet briefly.. before he noticed those glittering sapphires flit down to stare longingly at his lips..

".. Diluc... I... ..."

Nope nope nope!

He decided to take that moment to roughly shove Kaeya off him before he could say anything further, Egyptian satin messily strewn about them. He didn't want to hear it, tonight had already been too much..

What they had just done...

Whatever Kaeya had to say..

Diluc is the Cavarly Captain of the Knights of Favonius for Archon sake, nothing scared him. Yet somehow letting Kaeya confess whatever was on his mind in that very moment, felt like it was going to tear his world apart..

Without a word of response, Diluc turned his back on the bluenette and got out of bed onto unsteady legs, promptly pulling his nightshirt back on. He didn't look back at Kaeya, not wanting to see the look on his face.

He needed to go clean himself up...

Before he left the room he spoke over his shoulder, voice as steady as he could manage "Don't be in here when I get back."