Archive of Our Own ^beta

Chapter Text

Kaeya has known all along that going to Liyue with Diluc is going to be a disaster.

("It's going to be an adventure!" Lumine had cheered. She needs to find violetgrass for Sucrose's project, she said. The route will be difficult but great fun, she said.

They only realised they are both part of her mini exploration team when they showed up in Wangshu Inn. Turns out she told Diluc the same thing.

That little twerp. She's lucky she's cute.)

"Uh oh," Paimon says, as Sucrose's potion shatters on the ground, splashing onto Kaeya.

"OH NO!" Sucrose screams, palms slapping onto her cheeks as she stares at Kaeya in horror.

"Um... What is this supposed to be again?" Kaeya says, keeping his voice neutral, though Sucrose's reaction is igniting some panic within him.

"It's-" Sucrose blushes, "it's to help couples who are having problem conceiving."

"Well, I'm not infertile, I think?" Kaeya laughs uneasily. 

"It's um," Sucrose blushes harder, "not just for infertile people."

"I see...”

"And uh... the thing is, I haven't completed the potion yet, so uh..."

"So...?"

"It might be a bit too strong?"

Kaeya's smile freezes on his face.

Lumine stares, puzzled, "What do you mean?"

Kaeya coughs, "I'm going back to the inn. Bye kids!"

"Huh? Wait! Kaeya!"

"I will show you around later, I promise. Will treat you to food!" Kaeya shouts back, as he all but flees back to the inn.

When he opens the door to his room, Diluc is on the bed, reading a book. He raises a brow at Kaeya. "You are back early."

"Get out."

Diluc's blithe reply comes quickly, "No."

"Diluc," Kaeya says through gritted teeth, "this is not the time to be a dick."

"And why would I do what you say?" 

"This room is mine. You are being purposely difficult."

"I paid for the rooms," Diluc replies, irritated, "I can't go to mine now - someone got into a fight and broke a wall. They are still fixing it."

"Then, can you join Lumine?" Kaeya snaps.

"I can't leave the inn."

"... What?"

"Fatui Harbinger nearby. They see me at the inn and this place will be a warzone. I am unfortunately, still obliged to keep up an appearance until dark."

"Listen, Sucrose spilled a potion on me, I am feeling kinda funny, and I really need to stay in this room."

Diluc cocks his head. "... Potion?"

"It's a..." the words feel like a gurgle as they leave Kaeya's throat, "sex potion."

"I read her project outline before. It's supposed to be for people with hormonal imbalances. Aren't you on heat suppressants? It shouldn't affect you."

“I'm not on heat suppressants!” Kaeya hisses.

Diluc leans forward, anger flashing across his eyes. "What? Are you that irresponsible?"

Kaeya throws his hands up. This absolute jackass dare to dictate what he does with his body? "I had been on suppressants since forever, okay? I was only recently instructed to skip the suppressants for this heat. Shut up about it." Apparently, going on for too long without a heat is dangerous. And unfortunately, the Ordo's doctor is good friends with Lisa who gossips with Jean who will absolutely nag him about it.

Diluc stills. “Wait, since then?”

Four years ago. When they had sworn themselves to each other, the proof of bond was the scar that still rests on the mating glands on their necks. They were so young, stupid, and naive.

Until everything went downhill, of course.

Going through heats with a mating bond and without said mate had been hell.

Kaeya pinches the bridge of his nose. Breathe in. Breathe out. Don’t panic.

”It's okay. We can control ourselves. In any case, this potion of hers might not even work.”

And Diluc, proponent of self-discipline and self-control, nods.

Kaeya’s body is flushed and feverish, as he trembles and sweats in the sheets, his perfumed scent mixing with Diluc's own. The drug-induced heat had overcome Kaeya quickly, leaving him weak in the knees. Diluc carried him to bed, and quickly darted away when Kaeya tried to pull him into the bed as well. And now, Kaeya’s completely bare, sensitive skin unable to deal with the confines of his clothes, begging for his alpha to come soothe his heat.

“Diluc...” Kaeya whimpers as he parts his legs. His cunt is already swollen red, its juices dripping, the tuft of hair crowning his cunt shiny and damp.

Diluc’s cock is so hard; the base where a knot will form itches, the urge to take his omega into his arms and plunge his erection into the wet and warm cunt courses through his blood. Right now, omegan instincts have taken over Kaeya, and all he wants is to be fucked and bred. Their old mating bond sings like a siren, pheromones clouding Diluc’s mind. Diluc knows how desirable an omega in heat could look like, but Kaeya, his omega, his mate, is an absolute sight - nipples puffy as if his breasts were already filled with milk, the pussy slick and soft and ready to be taken, to be knotted, to be pumped full of seed. Again and again. Until he is pregnant.

Diluc grits his teeth. He can’t. He can’t. 

This close, the distress signals and shared intense lust raging through their bond are driving him nuts.

Kaeya mews then, his fingers reaching into himself, plunging three fingers in straight. The lips of his pussy stretch around them, and he pumps his fingers, causing more slick to squirt out in an obscene squelch. The other hand rubs his clit, rolls that red nub in rough circles. Diluc watches Kaeya writhe around his own fingers as he reaches his orgasm, slick gushing out of his pussy and soaking the sheets. But the heat has not stopped, the omega in bed is still unsatisfied and begging for a knot. Kaeya, frustrated, pushes four of his fingers into himself desperately, trying to go deeper only to be blocked by his knuckles.

“Diluc...” Kaeya’s crying, tears running down his cheek, “Help.”

Goddamn it. 

When Diluc pulls out his own swollen erection, Kaeya adjusts immediately, hooking fingers at the sides of his folds and pulling them apart, exposing himself as slick trickles out.

”Inside,” Kaeya begs.

Diluc steadies himself by resting his hands against Kaeya’s hips, and then buries inside the drenched pussy in one smooth slide. Kaeya screams then, pawing at Diluc’s arms like a cat as he comes again. Diluc is overwhelmed by the pulsing of a warm cunt around him, the inside silky soft, with just the right amount of tightness and pressure around his cock. Kaeya is so wet, slick everywhere, spilling on both their thighs.

Diluc hikes Kaeya’s thighs up so that they bracket his hips, and thrusts once. Kaeya's thighs squeeze around him as he moans. Diluc pulls out slowly until only the tip remains in Kaeya's cunt, and then pushes all the way back in till he bottoms out. And repeats the motion again. And again. Each time, Kaeya’s cries egg him on, and he begins to fuck faster, harder.  And soon he loses himself to the alpha instinct that is desperate to satisfy his mate, to knot him and mark him as Diluc’s. Kaeya is trembling underneath him, clawing at the sheets. When Kaeya tries to stifle his cries with his hand, Diluc growls and yanks it away, replacing it with his own lips. They kiss messily, the kisses serving as little comfort for his omega and he mercilessly pounded into his pussy.

Go deeper.

Deeper.

Diluc grabs the underside of Kaeya’s knees and pushes them towards Kaeya, bending him almost into half. The angle allows him to grind the knot against his cunt, the head of his cock sinking further into Kaeya’s heat. He bumps against something there, and Kaeya jolts.

”That’s-“ Kaeya gasps. Diluc tests by fucking into that spot, and he feels something there catch at the head of his cock. Kaeya whimpers.

Diluc knows where that is. The mouth of Kaeya's cervix, still tightly closed. With all rationality thrown out of the window, he aims at that spot, fucking harder, jabbing at the opening each time, until it unfurls enough for the tip of his cock to nudge the hole wider. Kaeya writhes then, slack-jawed as he cries at the intrusion, his legs spreading wider to accommodate Diluc's effort.

And finally, the entire head of his cock breaches Kaeya’s cervix, as does Diluc’s knot pop into Kaeya’s cunt, locking the two together. Kaeya shakes and comes again, clenching around his knot as he sobs from the relief. And Diluc comes right then, ejaculating directly into Kaeya’s womb, the walls pulsing around him and milking his cock until he empties his seed completely.

As they remain tied together, Diluc leaned down to soothe his omega, licking at his tears, kissing his lips and his cheeks, and a final kiss at the mating bond at his neck. The high of sex has dissipated a little, and Diluc frees Kaeya’s thighs to let his legs sprawl limply by his sides. Kaeya whines, clutching at Diluc's arms.

His omega still wants. 

Diluc leans down and suckles at the swollen nipples in front of him. If Kaeya is pregnant, there will be milk here. But this is fine too, his omega is still sweet. He licks and sucks at one nub, the other toyed by his fingers. Kaeya’s hands quickly find their way into Diluc’s hair.

“Sen-sensitive,” Kaeya gasps, but he pulls Diluc's head closer. Diluc bites the reddened nub and sucks it harder, earning a moan. Diluc begins to move his hips then, slowly grinding his knot deeper into Kaeya, letting the head of his cock spread the come inside the newly opened cervix further. By the time both nipples are bitten a swollen scarlet, Kaeya comes one last time, barely a tremor, and slowly drifts off to sleep, heat finally satiated.

Lumine stands outside the door to Kaeya's room, preparing to knock.

”Wait...” Paimon stops her urgently, “Let's not go inside.”

“Huh?” Lumine, who does not know of the special alpha, beta and omega dynamics in this world, tilts her head. “But Kaeya promised to show us around.”

”Right, you can’t sense it, but, erhem,” Paimon looks at Verr Goldet helplessly. 

Verr Goldet, who has heard the moans and the headboard of the bed slamming against the wall for the past hour, sighs, “Ah - to be young and full of energy.” 

“I don't get it?”

”Let's go find more crabs, shall we!" Paimon laughs nervously, dragging Lumine's hand.

”Paimon! Explain!”

Chapter Text

"So. Diluc Ragnvindr huh," Lisa says as she takes a seat beside Kaeya. Even without looking at her, he feels the weight of the knowing smirk aimed at him.

Kaeya chugs the rest of the wine in his hand. "Does anyone in Tevyat not know about it," he grimaces.

"Mondstadt and Liyue definitely do. Snezhnaya, too. Apparently some Inazuman novelists have been very inspired."

"Wow. Wish someone could end my misery right now."

"Well if it helps, Sucrose has received a lot of orders. She might give you some of the profits." Sucrose has been extremely apologetic, sending him food and apology notes and flowers, and in the first place Kaeya can’t find it in his heart to be mad at her. He has already kindly rejected the offer of mora, though if her invention starts making enough bank to rival the wine industry, he miiiiight reconsider.

"Though," Lisa adds as she leans against her knuckle, gazing wistfully in the distance, "I kind of want to try the one that she gave you."

Kaeya splutters, in the middle of sipping his glass of water. "Can't you just figure it out?"

"She destroyed all her records of it. Said it was way too potent," Lisa sighs.

Thinking about that afternoon in Wangshu Inn still brings heat to Kaeya’s face. The moment he came down from the high of the induced heat, the memories of the intense sex he had with Diluc flooded his mind - the mess between his thighs, the pleasant soreness deep inside him, and the strange disappointing emptiness that he no longer had something filling him, were stark reminders that it hadn’t been a dream. Diluc had fallen asleep by his side, curled around him unmoving. To think about it, the potion that had splattered on him probably affected Diluc to some extent. 

Kaeya still can't believe that alpha cock of his pierced his-

"Ooh... you are clearly still thinking about it," Lisa leers.

"Shut up. You have no idea how much I panicked after that." 

Lisa lights up, "An Alberich-Ragnvindr baby! Think about how cute they will be."

The baby will be adorable alright. The thought of being pregnant has him blushing harder. Then Kaeya remembers the mating bond still seared on his neck and grimaces.

"Ah - you don't want kids?"

"It's not that..." a voice behind them slurs. Venti leans into the space between Lisa and Kaeya, and raises a hand to the side of his mouth like a mock whisper, "It's because they actually mated years ago but they broke up."

"YOU TWO WERE ALREADY MATED?" Lisa exclaims.

Kaeya slaps a hand over her mouth as he glares at the drunk bard.

But the damage has already been done - everybody in the Angel's Share is staring at them. Even Charles, who is usually polite and discreet, is looking at him bewilderedly.

"This has been a misunderstanding!" Kaeya says aloud, but his voice is overwhelmed by the louder drunken gossiping that has enveloped the entire tavern. 

Lisa and Venti look at each other sheepishly. "We are sorry?"

Kaeya buries his face in his palms.

“Master Diluc, can I speak to you for a moment?”

Diluc pauses in his game of darts. ”... Yes?”

”Please forgive me if I sound disrespectful.”

Uh oh. Adelinde only says that when he’s in for a scolding.

Diluc swallows, and nods.

“How could you mate with Master Kaeya and abandon him right after? Did we fail you in your education?”

Diluc personally visits the Ordo headquarters, to the gasps and whispers of everyone around. He ignores the stares and marches steadfastly to the Calvary Captain’s office.

“Please leave,” he demands the knight stationed outside Kaeya’s door, “if I find out you have been eavesdropping there will be price to be paid.”

“Yes sir!” The knight salutes him fearfully, before running away down the hall.

Diluc opens the door, and slams it behind him. Kaeya, seated behind his desk, watches him with that usual off-putting grin on his face.

“I see you have heard that little gossip going around. Before you try to kill me, I need to explain that it’s not my fault.”

”I am aware.” Diluc knows whose fault it is. He’s going to wring that bard’s neck, Anemo God or not.

“Eh,” Kaeya cocks his head, “why so formal?”

”I am here with a proposal.”

Kaeya leans forward with interest, and beckons him to continue with a nod of his head.

”Let’s... pretend. To be together.” Diluc says, pained.

Kaeya freezes, then barks out a laugh, “What?”

“This gossip is damaging both of us, isn’t it? Why don’t we just pretend for now, satisfy the public, then part amicably.”

“Actually, my reputation is just fine,” Kaeya says, the ends of his lips curling, “though interestingly, people have been sending me flowers and sharing sob stories about how they have been abandoned by their mates. Even Jean is giving me less of the boring work. In fact, I think only your reputation has taken a tank, hasn’t it? The merchants are mostly older families, they probably have been giving you trouble. And oh, you still are playing that dapper alpha gentleman role, aren’t you?”

Dealing with Kaeya really is the worst. But Diluc thinks about the sudden pile of meetings that members of the Wine Guild has scheduled to ‘talk’ with him, the disapproving looks from almost everyone in the Winery, the morning long lecture he had gotten from Adelinde, and sighs.

“Are you in, or not?”

”I’m out. That’s your problem to deal with,” Kaeya says with a smirk. He stands from his desk, and makes his way towards the door. 

But before Kaeya can reach for the doorknob, Diluc grabs his elbow and yanks him back. Kaeya tenses, and - oh, is that a shiver?

Interesting.

Diluc brushes Kaeya’s hair to the side so that their bond mark is exposed, and leans forward to press the tip of his nose against it. He inhales, taking in the scent of his omega. 

Kaeya’s breath hitches, and there it is - the tell-tale scent of slick, of arousal.

Diluc murmurs lowly next to Kaeya’s ear, “Free alcohol, from any taverns associated with the Dawn Winery, for a month.”

”How long are we supposed to keep up with this fake dating thing?”

“Two to three months, the moment the public stops their nonsense.”

”Pretty cheap for my services and time.”

”A month on top of the time you play your part.”

”A year.”

Diluc growls, and the scent of omegan arousal heightens. “Three months.”

“Eight. I’m thinking you aren’t that desperate.”

”Six months. My last offer.”

Kaeya purrs as he leans back towards Diluc, “Deal.”

”It’s unlimited only if it’s for your own consumption, by the way. If you are sharing or treating people that’s on you.”

”Stingy. But fine.” Kaeya pulls away from him, not before giving him a peck on his cheek.

”There’s an event tomorrow night at the Dawn Winery. Come with me, as my mate. Meet fifteen minutes earlier, so that I can run through the story with you.”

”Hm. Actually, why don’t I come over tonight?

”Why-“ Diluc’s words are cut off by a hand pulling the back of his hair, and the warm press of lips against his. He parts his lips, lets Kaeya slide his tongue in, and returns the kiss eagerly, flicking his tongue over the roof of Kaeya’s mouth and sucking his tongue.

Kaeya pulls away first, his cheeks flush and his lips kiss-red. 

“We should at least smell the part.”

Oh. Diluc’s cheeks feel heated as he processes what that means. “I see. You don’t mind?”

“We already have a mating bond,” Kaeya points out, “people will realise we are lying when our marks don’t have each other’s scent.”

Diluc nods. “Come find me tonight. Dawn Winery. My room directly.”

Kaeya climbs to the second floor of the manor, and lands on the small porch outside Diluc’s window. He knocks, and Diluc comes quickly into view. He unlocks the window, and lets Kaeya in.

The moment Diluc shuts the window, Kaeya pulls him by his collar and kisses him. The man reacts immediately, pulling Kaeya’s head down, a growl in his throat. The sudden show of dominance has lust simmering in Kaeya’s gut, and he strains against him, grinding loosely against his crotch, delighted that the bulge there is hardening and excited for him.

They barely keep their hands off each other, and it’s a miracle that they make it to Diluc’s bed. Getting naked is another hurdle, but soon they are falling on the bed nude, grinding filthily against each other. Kaeya feels himself getting wetter, slick trickling out of his cunt. He crawls onto Diluc’s lap, parting his thighs and lifting his hips up so that Diluc can have space to work. And Diluc’s fingers move quickly, ignoring his hardened clit in favour of feeding them to his wet cunt, and the rough drag of fingers within his walls has Kaeya sighing in pleasure. 

Diluc presses a kiss to the side of Kaeya’s lips as he pulls out his fingers, and replaces them with his cock. 

Shit. It’s big. Without the heat dulling his senses and loosening his muscles, Kaeya feels every strain and stretch of the cock pulsing within his walls, the lips of his cunt gripping tightly around the girth. The head of Diluc’s cock presses deep within him, a point of heat threatening to melt his insides. 

Diluc thrusts upwards experimentally, and his cock goes even deeper, pressing against that weak spot that was once Kaeya’s virgin cervix opening. Memories of their last sexual encounter flashes across Kaeya’s mind, and he gushes wetly over the cock within him. Gods, he wants his cunt to be fucked. But if Diluc knots him, he’s going to reach inside there again. Kaeya has checked with the doctor to confirm that he hadn’t gotten pregnant, and it was a miracle that he wasn’t after all of that.

”Ah, crap.”

”Hm?”

”Your cock is too big,” Kaeya complains, to Diluc’s snort, “if you come straight into my womb again we might end up having another problem.”

The cock within him twitches with interest.

“I see.” 

Is that disappointment he hears? Kaeya is about to change his mind, when Diluc pushes him down onto the bed and pulls out.

Diluc crouches over him, cock red and glistening with his slick. Kaeya gazes at him in confusion. “You can just - ah!”

Diluc flips him around, positioning him in all fours in a traditional omega position, ass up and presented towards the alpha. Kaeya feels Diluc kissing down the ridges of his spine, his hands parting the cheeks of his ass, and oh- Diluc’s mouth is on the unused hole between them. A flick of the tongue, then a suck.

Kaeya shouts, his hand clenching into the sheets. The tongue licks around the rim, and then spears into his furled hole. Fuck. Fuck. Fuck. Every swipe of his tongue is loosening the tight ring of muscle, and his pussy weeps in arousal and neglect. But Diluc’s fingers return to his cunt then, stroking the trembling walls within, moving in time to the pistoning tongue in his ass.

When Diluc removes the soaked fingers to push them into his ass, Kaeya cries out, feeling the way his rim strains tightly around the fingers, the way it is stretched out like his cunt was. Both entrances are soaked with a mix of Diluc’s spit and Kaeya’s natural lubricant now, from Diluc licking around the skin where his rim clings onto the fingers, and from the slick that continues to spill out of his cunt in excitement.

”Stop teasing,” Kaeya whines, even as he pushes his ass against Diluc’s face. 

Diluc pulls his fingers away then, and leaves one final kiss on his rim. 

He tugs Kaeya upwards, so that Kaeya’s leaning against him, head resting against his shoulder. The length of Diluc’s cock is resting snugly along the sensitive folds of his cunt, the slick his body produces from the sheer arousal lubricating his erection as Diluc slides it along. The needy mouth of Kaeya’s pussy sucks at the head of the hard cock when it catches there, but Diluc moves further back, and impales his cock into Kaeya’s ass in one smooth thrust. 

Kaeya cries out, trembling at the cock inside his ass, the muscles there never experiencing this sort of intrusion. Diluc moves, not allowing Kaeya to take a breath, and the cock drags against the sensitive spots Kaeya never realised existed. Kaeya’s toes curl in response, and he grasps desperately at the Diluc’s arm that has circled around his waist. Another shove, and Kaeya whimpers, slick gushing from his pussy and down to the place where they are joined. Diluc moves slowly first, but gradually builds up speed, the increased slick from his cunt becoming additional lubricant when Diluc fucks it up into his ass. Kaeya’s legs are spread wide, and he barely can make an effort to chase Diluc’s thrusts, bouncing weakly against the faster, harder movements of Diluc’s hips. One of Diluc’s hand toys with his sensitive nipples first, before reaching down to his neglected clit, and the press of his fingers there feels like an electrocution. Moans escape Kaeya’s mouth, and it’s as if he has lost all control of his body, to the mercy of Diluc’s ministrations and his body’s greed and lust for pleasure.

Desperate for some sense of control, Kaeya grips the back of Diluc’s head and pulls him to a kiss. Diluc’s reciprocates, and Kaeya lets himself indulge the feeling of being fucked open on both his ass and mouth. The thrusts against his ass turns into a filthy grind, and Kaeya feels it, the hard, building knot at the base of Diluc’s cock, catching against his stretched rim.

Diluc pulls away then, gripping Kaeya’s waist tightly and lifting him from his hips. Kaeya whines, his gaping asshole twitching miserably from the emptiness left behind by the absence of a cock. Diluc flips Kaeya around once more, pushing him down onto his back, wrenching his thighs apart and pushing his cock back into his ass. In this angle, Kaeya can see how Diluc sinks into him, almost in awe of how his body can accommodate such girth. His cunt is obscenely exposed like this, his folds furled and shiny like a bloomed flower, slick gathered at the centre in a pool. Diluc drags a finger there, making sure his finger is soaked, before slipping it into Kaeya’s ass next to his cock as a test. It’s tight, but Kaeya barely feels it, his ass already drenched and lubricated within, his rim numbed and puffy from use. 

Diluc grabs his hands, pushes them next to his head, and kisses Kaeya, giving him a bit of reprieve. 

“You ready?” Diluc asks, the reds of his eyes burning.

Kaeya blinks hazily, but nods. 

Diluc leans in, and Kaeya tilts his head to his side, exposing the part of his neck where the old mating scar lies. He closes his eyes as Diluc kisses along his shoulder, up the line of neck, and finally rest his lips against the mating gland.

Kaeya holds his breath.

Below, Diluc pushes, and the force of the heavy knot trying to breach his rim stings, but Diluc shoulders on, thrusting a few more times, each harder than the next, pummelling every last of his body’s resistance away, and when the knot finally pops into his ass, Kaeya screams. It’s too big, that part of his body unused to the immense pressure, unused to being split apart like this. Tears spill from his eye as he struggles to breathe through the intense pressure of his ass being knotted. 

Diluc bites him then, at the mating gland, teeth sinking into his flesh, new bond mark replacing old. The sudden rush of endorphins overwhelms Kaeya, and he feels light, feels free; Diluc comes the moment the knot is fully inside him, but along with the satisfaction of being filled with heat from the come that has surged into Kaeya, is a slight sense of disappointment that the knot isn’t in his cunt, that Diluc’s seed isn’t flooding his womb to the brim, that there won’t be a chance of him being impregnated by his mate.

The first time they bonded it had been him on top of Diluc, and it had been shy and clumsy, as he rode Diluc till he knotted and bit him from instinct. Back then his cock already felt huge, but not so big that it would necessarily need to pierce through his cervix to accommodate the knot. They are doing a lot of things differently this time, but they still observe custom by instinct - the alpha places the mark of the bond first, then the omega completes the mating process by returning the mark. Diluc releases Kaeya’s neck, soothing the wound with his tongue, then cups Kaeya’s cheek to angle his head towards him. Kaeya parts his lips, presses his face into the crook of his alpha’s neck, and breathes. The strong scent of his mate, of campfires and grapes and oak, the subtler tastes of wine, fills his senses - Kaeya sighs wistfully, then finally, bites into Diluc’s skin. The cock inside him jolts, and Kaeya can feel how Diluc tenses when teeth breaks skin, and he comforts his alpha by stroking his hair and licking away the blood that has welled from the bite. As some of the haze from the bite fades away, Kaeya feels the dampness of where they are joined, the slight tremors of his cunt from the aftershocks of his orgasm that he hasn't realised he reached while being bitten.

Tied together, Kaeya can sense the slight rumbling of satisfaction from Diluc’s chest. Kaeya’s body is relaxed, and the knot feels comfortable now, even as it tugs and strains against the rim of his ass when Diluc shifts them to a more comfortable position. Kaeya now rests against the headboard while his ass remains seated on Diluc’s cock, and Diluc kneels in front of him, supporting his hips and massaging his thighs. Diluc’s watching him with a frown as they wait for his knot to subside, but Kaeya is unable to decipher what his expression really means. With a mating bond they are supposed to be able to feel each other’s emotions, especially so with sex; the years separated has caused the bond to fade, leaving behind only physical remnants of scars. But now, they have bonded once more, and the ebb of emotions flowing through him is ambiguous - he can’t tell if it’s his or Diluc’s, or if the bond didn’t take at all. Ah - and there’s the sadness, among the relief and general calmness from a bout of satisfying sex.

”Regretting it?” Kaeya asks instead.

“I don’t,” Diluc replies easily, “doing this with you is... nice.”

“Nice?” Kaeya chuckles, “What a compliment when it’s coming from you. The other omegas you must have had are shaking in their boots.”

Diluc raises his brow, “No, it has only been you.”

Huh. Kaeya leans his head back, and admits, “It has only been you, too.”

Chapter Text

The story as Diluc proposed (and which Kaeya has made some edits to), goes like this: 

They were childhood lovers, mated, and drifted apart after Crepus died. They reunited recently, it's new, and they did not expect things to blow up this quickly before they could share the happy news.

In other words, a masterful mix of guilt-trip and storybook romance. Kaeya has caught Diluc eyeing those godforsaken romance novels from Inazuma ("Once Bitten, Twice Shy: The Alpha Who Ravaged Me In An Inn in Liyue. Wow this is pretty specific." "Kaeya, shut the fuck up.") like he's conflicted between asking for royalties or burning them altogether. News of Kaeya showing up wrapped in Diluc's arms for his meeting with the Wine Guild, his face bright from a suspected sex afterglow, quickly spread, and soon congratulatory flowers and notes began sending to both the Dawn Winery and the Ordo Headquarters. Rumour has it that the increased demand for wine from the Ragnvindr clan can also be attributed to this happy news. Everyone loves a good whirlwind romance, especially the citizens of Mondstadt.

Of course, everyone who knows them, knows it's bullshit. Despite the Dawn Winery's experienced staff's exasperated sighs, the plan goes on and their new term together continued. It's less disruptive than Kaeya thought it will be. They are both busy with work, so they don't actually have to meet up often. On his off days Kaeya simply shows up in public with Diluc acting like a besotted omega, and for the major events he just has to be Diluc's arm-candy for the night. 

And the wine perk is the best. For every profit Diluc earns from his alcohol, Kaeya whittles it down by letting loose with his orders in the Angel's Share. 

Not all things are rosy, of course. Kaeya gets asked invasive questions, and merchants wishing to butter up Diluc end up trying to butter him up as well, distracting him from his actual job. Donna bursts into tears every time he walks pass the flower shop, and some of the omegas who also have crushes on Diluc are no longer as friendly as they used to be. The calvary who he could drink and banter with before, keep their distance now, out of respect of an old-aged custom that alphas should not be too chummy with taken omegas. Kaeya ends up having to work around the new limits by going through Vile, which means that he has to fork out more money and time for her services. He can't complain about this to anyone, but Jean who knows both of them since they were kids, simply points out that he chose to make things difficult for himself.

During this time, Diluc and Kaeya have grown closer, inevitably with their bond allowing them to read and discern each other’s intentions better than before. The two of them still bicker, but it never escalates into an outright fight. The omega part of Kaeya that used to cry out for his mate is sated, despite his rationality screaming that this entire thing is a lie. Still he admits to himself privately, that getting to spend time with Diluc has become something he looks forward to.

Soon, a month passes. Then two. Mondstadt is not free from other shocking events, and the public's attention wanes. In Kaeya's heart, he knows this arrangement will end.

"... And that's all I have to report for today. Oh, and also, Connor says that you can come down to test his new brew when you are free."

"The one with the flaming flowers?"

"Yes. The one with the mist flower corolla had turned out well, after all. He has high hopes for this one too."

As much as Diluc dislikes the taste of alcohol, as a wine businessman, he has to test the new products before selling it to the market. He wonders if Connor will be keen to develop non-alcoholic versions of the current mixes.

"I will look for him now,” Diluc says as he gets up from his seat behind his office desk, “and, Elzer, can you help me find a good day in the next couple of weeks, preferably one with a meeting with someone that isn't that appalled by mated pairs breaking up?"

Elzer frowns, "I thought the two of you..." His words trail off to silence.

Diluc raises an eyebrow, "The two of us...?"

Elzer lets out of a wry laugh, "Apologies, Master Diluc. I didn't expect your... arrangement to end this soon."

Diluc sighs, "It has been almost three months. I am sure Sir Kaeya has things to do as well."

"I see," Elzer bows, "I will do as you ask."

"Thank you," Diluc says. Taste test, then - he supposed he has to discuss with Kaeya how to proceed with ending this pretence as well. Despite knowing that this fake relationship will have to end sooner or later, the instinctive part of Diluc mourns the separation from his mate again.

No. He wills the thought away. Don't let feelings cloud his judgement again.

Connor's excitement to show his new brew is a welcome distraction. 

"You seem to have less issues with the flaming flower stamens."

"For this batch, instead of using fresh flowers, I commissioned a bottle of distilled flame flower oil from Lady Sucrose of the Ordo. For some reason, there was no elemental backlash in the brew."

"I see. What are your thoughts?"

"I haven't tried it yet, but from the smell alone, I have a good feeling. It is particularly aromatic. The other batch I made with the fresh stamens doesn’t smell as good as this one.”

"Sounds good," Diluc eyes the sample cup of wine in front of him. He braces himself for taste of alcohol, and downs the drink in one go. The liquid slides down his throat in a strange, cloying warmth. 

This is-

"Wait. Connor, do you still have leftovers from the bottle you got from Lady Sucrose?"

"Oh, I used all of it. But, ah- here's the bottle."

Diluc takes it from Connor’s hand and scents it. His worst fear is confirmed - there is no trace of Pyro in it.

"This isn't flame flower oil."

"What? Then what is it?"

"I don't know," Diluc says. The warmth is growing within him, and the blood rushing through his veins feels like lava. His head is increasingly getting muddled, and his focus is swarming.

He distantly hears Connor backing away. "Sir... I think you are going into a rut."

"So you accidentally gave the wrong potion to Connor, and but he’s already long gone by the time you found out he took the wrong potion?"

The poor girl cries harder, "It was an accident!"

Kaeya comforts her, "Don't worry, I will chase him down. Don't cry, sweetheart."

Sucrose wipes her eyes with her sleeve, before she continues, "I-if, for some reason, he drinks it, just freeze him, okay? It's not his fault, but he won't be able to control himself."

Oh. So it's those kind of potion. Kaeya can't believe this is happening again.

He pats her on the shoulder as he grabs his things. "Go find Lisa and join her for tea in the meantime. All these panicking must have worn you out."

Sucrose nods her head vigourously. "You are the best, Sir Kaeya. Thank you."

"No worries," Kaeya says. Though, he does have a bad feeling about all of this.

It’s in the middle of the journey towards the Dawn Winery when Kaeya realises that his worst fear has come true. 

He rushes towards the Dawn Winery, and pushes the gate open. He sees the group gathered in the middle and asks, "Where's Diluc?"

Adelinde and Elzer look at each other. "He's suddenly having his rut," Elzer says, as his eyes narrow at Connor.

"I don't know what's in that potion!" Connor argues.

Kaeya cuts in before they get into a fight, "Is he in his room?"

Adelinde shakes her head. "He's in his private residence nearby. He gave an order to make sure no one comes to find him before he left."

Kaeya remembers a few cottages within the estate. He has never asked what they are for, and has assumed them to be for the staff. Turns out Diluc has kept one for privacy, specifically for his rut.

“Where is it?”

Adelinde studies him carefully, before replying, ”East. Next to a sunsietta tree.”

"Noted," Kaeya says, as he turns to leave. "I will take it over from here now."

Connor calls out behind him, “Sir Kaeya, Master Diluc's particularly agitated now. Maybe you shouldn't-"

"It's precisely because of that I have to go," Kaeya replies with a wave of his hand, "I think I am the only one he won't try to murder."

Kaeya can feel the unbridled rage and lust through their bond. 

In a rut like this, the knot is fully formed even before it is inside an omega. How it must have hurt not to be able to soothe the ache. Kaeya's not in heat - but he wishes he is, if only it will be easier to help his alpha. It's not impossible, but Kaeya can get hurt in the process, with how out of control Diluc's instincts has become with that strange potion in the mix.

But that doesn't matter. He's Diluc's mate.

Kaeya opens the door to Diluc’s cottage. 

"Diluc - oof!" 

A blur of red crashes against him, pinning him to the floor. Diluc's naked, and his hair is loose and wild, cascading over him like a rain of fire. His eyes are predatory and the grip on Kaeya’s shoulders sink into his flesh like claws. His teeth are bared in a snarl, the sharper ends of them glinting. 

Kaeya will be lying if he says he isn't terrified. But he exhales, and smiles softly. "Hey, it's me."

Diluc's breathing is harsh, and his fiery gaze remains fixed at Kaeya. 

"Alpha," Kaeya says as he bares his neck in submission, "I'm yours."

Lips meet the mark of their bond on Kaeya's neck, then a bite. It hurts, but the act of claiming has Kaeya gasping, and oh, if he isn't wet before, he is now, parting his thighs on instinct. His hands reach out to cradle the back of Diluc’s head.

"I'm yours," Kaeya whispers, stroking Diluc's hair. He cants his hips so that Diluc’s painfully hard erection is pressing against his increasingly damp clothed cunt, and when Diluc releases his neck, Kaeya guides his face to a kiss.

"Diluc, I'm yours."

Kaeya's clothes have been ripped off him, lying in a scattered heap next to him. They are still next to the door, but Diluc fucks him right there, pounding his cunt over and over again, the height of his rut amplified by the potion ravaging through his blood. There is barely any preparation - once his trousers and underwear have been yanked away and his alpha finds a spot on his shoulder to clench his teeth on, Diluc shoves that huge cock into him, jackhammering into him like a machine while Kaeya braces himself helplessly against the onslaught. Kaeya thinks he may have bled a little, but the hormones kick in then, reacting to his mate's rut by producing more slick, evening out the strain in his cunt and turning pain into pleasure, relaxing his muscles to ease his channel, so that his alpha can push more of his cock inside. When Diluc finally comes, it's with a miserable whine - unable to knot inside his omega, the ache of his rut remains unsatisfied.

"Shhh," Kaeya soothes in sympathy, his thighs shaky from his alpha's rough bout of fucking, "baby it's okay, you can keep trying."

Diluc nuzzles against his omega's neck, breathing in his calming scent as he grinds his cock inside him. His alpha is upset, and Kaeya just wants to make him happy.

"Hey, let's go to the bed," Kaeya suggests. But as he tries to dislodge himself from Diluc to move, the alpha growls and yanks Kaeya back into his arms, plunging his cock inside him once more. Kaeya cries out, and drapes his arms tightly around Diluc's neck. "Diluc," Kaeya tries to speak between pants, "we- ah!"

Diluc stands up then, and Kaeya wraps his legs around his waist for support. Diluc's arm supports his rear, while the other is tightly wrapped around his waist.

"Mine," Diluc snarls. The base of his knot is pressed tightly against Kaeya’s cunt, and Kaeya shivers from how deep that cock is within him, jostling with his alpha’s every movement.

"Yours," Kaeya relents, as Diluc drops him onto the bed, and takes him again. Diluc’s thrusts have become less desperate but no less powerful, hips snapping loudly against his skin with every thrust, and his pussy is flared and flushed red from the constant use. This time, Kaeya comes too, pussy pulsing over the length of Diluc's cock while he’s still ejaculating. Diluc's knot is still unable to be pushed into him, and he frustratedly nips at Kaeya’s shoulder.

"Let's try something else," Kaeya pants. And this time, perhaps with the worst of his rut instincts tamed, Diluc lets him shift. The cock pulled out of Kaeya causes a mix of slick and come to slide out, and Diluc growls in disapproval. Before he plugs him back, Kaeya pushes him so that he is lying on his back and quickly seats his cunt on his alpha’s cock. He sucks his fingers, and brings them into his ass, opening himself with his saliva. The process has his chest thrusted out, which his alpha quickly pounces on the opportunity to latch his mouth on his sensitive nipples. The pleasure of a mouth sucking and biting his chest causes him to clench around the cock, leading to more slick and come spilling out. Kaeya scoops the leaked release with his fingers to lubricate his ass as he sighs around the slowed grind of Diluc's erection inside him along with the sensation of his nipples being played.

When Kaeya can fit four fingers into his ass, he gently tugs at his alpha's hair, who then looks up at him with wide, crimson eyes. "We are going to change it up a bit, okay? You keep fucking me here and I won't be able to last."

He gingerly lifts himself from Diluc’s cock and turns himself around. Diluc's hands are on his hips as he guides the cock into his ass. Kaeya bounces experimentally, feels that monster cock of his drag itself along his walls and shudders. He leans back into Diluc, who automatically embraces him in his arms. "You can go ahead," Kaeya murmurs coyly, "claim me here too, Alpha."

And Diluc moves. He fucks Kaeya’s ass with powerful thrusts of his hips, adding more bites to Kaeya’s bruise-mottled shoulders and neck, and Kaeya breathes shakily through the pressure, canting his hips so that the cock can breach his ass easier. Soon, Diluc ejaculates, heated come filling his ass. Kaeya pants, wriggling in Diluc’s embrace. He tries to move, to switch entrances once more, but Diluc pins him there, one hand on his breast pinching his spit-slicked nipple roughly, another rubbing quick circles on his clit. Shit, Kaeya wanted to drag out his orgasm, fearing he won’t be able to keep up with his alpha’s entire rut, but Diluc’s attention on him is electric, insistently igniting the fire of arousal within him. Helpless to just take what is given, soon Diluc rips the orgasm out of Kaeya, and his cunt clenches pathetically around nothing, slick gushing out of him with the come that has been emptied into him before.

Growling, Diluc plunges four fingers straight into his cunt right then, and Kaeya screams, both entrances oversensitive from abuse. Diluc continues to pound his ass as his fingers thrust roughly into his cunt, and Kaeya writhes around the dual sensations of being penetrated in both holes, the vulgar sounds from the brutal fucking into come-soaked walls turning him on even more. Diluc’s grip on his hip is bruising, and he shifts his hold by scooping both of Kaeya’s thighs into his arm, bending him into half. This way, his fingers can reach deeper into his cunt as he bounces his crying omega harder on his cock. Kaeya’s just a toy for Diluc now, completely at his mercy, and when Diluc slips his thumb into his cunt and spreads his fingers inside, pushing against the delicate border between the walls of his ass and cunt, Kaeya comes violently with a scream, clenching around both the fingers in his cunt and the cock in his ass, tears running down his cheek. The orgasm this time completely wrecked the control of his body, and he is limp against his alpha, weak and drooling. Fingers leave his body, slide across his wet cheek and slip into his mouth. Kaeya sucks the fingers clean, and Diluc returns them to his cunt to sweep up the mess there, and feeds them back to his mouth. Diluc does this again and again, until Kaeya’s inner thighs are cleaned. The taste of both their releases, of themselves, has Kaeya shivering. His body is a mess of pleasure, and even if he doesn't know if he can keep on taking Diluc like this, he wants to continue until his alpha is pleased.

Satisfied, Diluc yanks Kaeya's limp thighs apart, pulls his cock out of his ass, and pushes it into his cunt. Kaeya does not protest the intrusion, and allows the cock to slide all the way in, until the knot is pressed against the folds of his pussy. The lips of his cunt are no longer gripping as tightly around his alpha’s cock as before, trembling meekly as they stretch taut around the girth. Kaeya feels heavy, belly swollen and body limp, and yet his alpha manhandles him like he’s weightless, gripping his hips and fucking into his cunt. Without any resistance from Kaeya's body, Diluc’s knot slips in, and the head of his cock pierces through the mouth of Kaeya’s cervix in one smooth motion. Kaeya whimpers, and starts sobbing when Diluc starts fucking in earnest, powerful thrusts that pierces into his womb over and over again. The cock head is lodged so deeply, and it has never been so deep inside him before. Diluc’s violating such a secret part of him, and Kaeya cries for his alpha to mark him there as his. His brain is muted with only the need to please, the mutual pleasure and lust overloading his senses through their bond. Diluc pushes him face down, gripping new bruises into his hips as he fucks deeply into the gaping cunt to satisfy his aching knot. Come spills messily down from his ass to where they are presently joined, and his alpha delights in how his omega is thoroughly painted with his claim. A few more hard thrusts, and Diluc finally comes into Kaeya's womb. Kaeya cries from the relief of heat surging into every corner and filling him inside completely, burning his alpha's mark into him. The knot lodged within Kaeya is at its widest, and the lips of his cunt twitches weakly around it as the pressure pulls a weak orgasm out of him. The opening of his womb however, works to milk his alpha of every drop, tightening around the cock head like a vice while his walls pulse uncontrollably around the cock. Gods, Kaeya feels so full, his womb bloated and stuffed with come, and he shares the relief with his alpha, before he slips into unconsciousness.

Kaeya wakes up cradled in Diluc’s arms, back pressed against his chest. Waking up jostles Diluc awake too, and Kaeya realises that his cock is still nestled deeply inside his cunt. It is already night, and the room is dim, lit by lanterns by the door. Diluc’s hand is resting on the slight curve of his belly, and the other is cupping one of his sore breasts. Kaeya feels a kiss on his cheek, then more kisses down to his neck, and Diluc nips at their bond mark there. 

"You were clenching so tightly," Diluc murmurs against his ear, "I had to stay inside you."

Kaeya shivers - while the knot has subsided, the cock head lodged at the mouth of his cervix is still plugging the come there, and Kaeya can feel the weight of Diluc's release flowing inside. He presses gently at the lower part of his abdomen that has risen lightly from the cock and come inside him. 

“How long was I out?”

”I... don’t know. But you can go back to sleep though. You are exhausted.”

"I'm okay," Kaeya says, then winces when he tries to lift his exhausted legs, “I don’t think I can walk for the next few days."

"Sorry," Diluc says, pressing a kiss to the side of his head, "and thank you."

Kaeya snorts. He experimentally moves away, smirking when Diluc reacts on instinct with a jerk of his hips.

"Ah," Diluc mutters apologetically, and begins to pull out.

Kaeya clenches down then, and hums, "You are still hard."

Diluc still pulls out of him, to Kaeya’s disappointment. But it is followed by Diluc pinning his hands to the side of his head, and his gaze is dark when they face each other again. He leans down, and traces the bruises he has left on Kaeya’s shoulders during his rut with his tongue, then kisses the tender nipples that have stiffened once more in excitement. Kaeya parts his legs, and Diluc’s gaze shifts from the swell of Kaeya’s belly to the come that dribbles out of his swollen cunt.

"Don't complain after this," Diluc chides, his usual brand of meanness showing. Kaeya grins, and holds his thighs back with his hands, offering both entrances to his alpha. They are both scarlet and gaping from use, teasing the come-soaked walls within. Diluc’s breath hitches, his aroused cock curved and glistening with both their release.

Diluc sheathes himself into Kaeya’s pussy easily, as if he has already carved a permanent mould for himself inside Kaeya. Kaeya’s womb welcomes the intrusion, the opening there clinging greedily onto the tip of his alpha’s cock like the way the lips of his cunt is clutching around the base. There’s still so much of Diluc’s release inside, that the moment Diluc plunges in, some of the come blurts out of his cunt obscenely with a wet squelch. It feels nice like this, to be this thoroughly claimed by his alpha. Diluc must be thinking the same, for Kaeya feels the pleased rumble through their bond, and he pulls Diluc in for a kiss. And just like that, they start fucking again.

Kaeya doesn’t leave the residence for the next three days.

Chapter Text

It’s weeks after their crazy sex marathon when Diluc arranges for a meeting with Kaeya. The sudden rut must have put a hamper on his plans, Kaeya presumes, so much that Diluc has forgotten that their little arrangement should be coming to an end. In the past weeks they stopped meeting up, allowing the public to slowly wonder if something has changed between them. The increased workload in Mondstadt helped as well, with the Fatui and Treasure Hoarders stirring trouble in various locations. It’s... strange, but Kaeya supposes the absence is also time for the both of them to get used to not being near each other once more.

Kaeya waits by the bar in the Dawn Winery, sipping his drink. The man is late, but Diluc finally arrives unceremoniously with his usual grumpy expression. Diluc doesn’t take a seat, but instead comes to a standstill next to him, eyes fixed on the glass in Kaeya’s hand. Kaeya braces himself for the news to drop, but what comes out of Diluc’s mouth is a question, “What are you drinking?”

Kaeya raises a brow. “Apple cider?”

“Why?”

Kaeya’s baffled by Diluc’s increasingly intense expression. “Why not?”

Is that fear and happiness signalling within their bond? Kaeya does not know what to make of it.

It takes a moment before Diluc breaks the silence to reply, "You know you can come to me right, about anything? I will support you. I will take responsibility as your mate."

"What in the world are you talking about?" Also, funny of Diluc to say this given what happened the last time.

Diluc's face turns pained. "What happened years ago... I will not deny that. I apologise for hurting you."

Kaeya blinks. "I don't know what's up with you," he says slowly, "but that night, I knew I was hurting you too. We can just move on from it and never talk about it again."

"Okay," Diluc says seriously, "if that's what you want."

"Okay."

They stare at each other in another awkward silence.

Kaeya tries, ”Don’t you... have something to tell me?”

Diluc shakes his head, gaze still fixed intensely onto Kaeya.

Uncomfortable with the attention, Kaeya coughs and stands up. "I think I will go now."

Diluc acknowledges him with a nod of his head, and Kaeya quickly leaves, stubbornly ignoring the disappointment that swarms through their bond. Neither does Kaeya acknowledge the fact that he too hasn’t raised the question of ending the arrangement, or the quiet comfort in his heart that they can still stay together for now.

For some reason, Diluc begins checking on Kaeya on his own accord. He doesn’t do it obviously, but Kaeya notices that he takes on more shifts at the Angel’s Share, raising a brow each time Kaeya places an order at the bar. So what if he prefers the taste of apple cider these days? He hasn’t felt well recently, feeling particularly nauseated at the smell of wine. And even if he orders Death After Noon, that asshole just replaces it with grape juice. 

It pisses him off, but Kaeya still goes to the Angel’s Share anyway - damn his idiot omega brain and mating bond.

On one afternoon, Klee drags Mona into Kaeya’s office. 

“Tell Mr Kaeya his fortune next, Mona!”

Mona stares awkwardly at the child clutching her hand, and then at the amused smirk on Kaeya’s face. Taking pity, Kaeya waves a hand to give her the go ahead. She does some sort of magic with Hydro energy, then she exclaims, “Oh!”

Kaeya cocks his head in amusement. “Please tell me it’s good news.”

Mona reaches out to grasp his hand with both palms, “Congratulations.”

What. 

Kaeya lets the information sink in, his face paling by the second.

”Ooh! Mona, what did you see!”

”Well, Sir Kaeya is having a-“

Kaeya clasps a hand over Mona’s mouth, “I am having some good news later, she means.”

”What kind!”

Kaeya ignores the dawning realisation in Mona’s gaze, “... Work.”

”Oh,” Klee kicks dejectedly. “Mona says that I will have a new friend coming soon to be my little sister, and she says one of the Knights will be bringing her over.”

Kaeya kind of wants to scream. “Well, I am sure you will meet her soon. Why not let Ms Mona go back to whatever she’s doing, and I will treat you to some grilled fish?”

At the thought of food, Klee’s wide red eyes grow brighter, “Yay! Yay! Food! Where!”

”Go tell Sara your orders and wait for me at a table there, okay? You know what I want to order too.”

Klee jumps in delight. “Okay! Bye bye Mona, see you Kaeya!” she cheers, as she dashes out of the door.

At Mona’s muffled protests, Kaeya realises he still has a palm over her lips.

”Whoops. Sorry,” Kaeya apologises as he sets her free.

”You didn’t know?” Mona asks after a cough.

Kaeya sighs, “I will appreciate it if you keep this between us for now.”

”I see. You are going to let Master Diluc know first right?”

Kaeya grimaces. “That’s the problem.”

It takes another three weeks, when Kaeya actually has to switch to looser clothes to cover the increasingly obvious bump on his abdomen, for him to decidedly come clean. He goes to the Angel’s Share in the afternoon where Diluc will be preparing for the opening of the tavern, and sits down in front of the bar. Diluc wordlessly goes to grab an empty glass and a jug of apple cider, before returning to face Kaeya.

Kaeya swallows, using the time Diluc takes to fill the glass to muster his courage. When Diluc sets the drink down in front of him, Kaeya confesses, “I’m pregnant.”

Diluc does not look surprised.

Kaeya blinks in confusion. “You knew?”

”There are obvious signs.”

“Wha-why didn’t you ask me about it?” Kaeya splutters.

Diluc sighs. He leaves the bar to walk to the seats by the counter where Kaeya’s at, and sits down next to him. ”I wanted to wait for you, until you are comfortable with talking with me.”

Kaeya hugs himself, “I know you don’t want to have anything to do with me. I don’t want you to feel like you have to do this, but you do get a say in what you want to do about the kid.”

”What are you talking about? You are my mate.”

”See, this is what I’m saying. You don’t have to stick with me because of something we did years ago.”

Diluc shakes his head in frustration, reaches out to take Kaeya’s hands into his own. “You are my mate. I have always thought of you as my mate. You are my responsibility because I want you to be mine.”

Kaeya stares at him in shock. ”You- are you serious about this?”

”I know you have your misgivings, but I am willing to wait. I told you before - no matter what you choose, I will support you. Even... even if you don’t want me as your mate anymore.”

Kaeya’s speechless. He stares at him with his mouth open for perhaps far too long, that Diluc gently prods him with a finger at his chin. “What’s on your mind?”

”My misgivings,” Kaeya blurts out before he can stop himself.

”And what are they?”

“I can’t drink wine anymore, and the pregnancy makes me super horny all the time.”

Diluc raises his brow. “You could have come to me earlier.”

”Huh?”

”First. You can have all the wine you want after. In the mean time, just say the word and I will get whatever you want for you. Whatever that is mine is yours.” 

”And second,” Diluc says lowly, and he tilts his omega to a kiss. Kaeya reciprocates, and the kiss turns dirty quickly, with Diluc crowding over Kaeya from his seat, sliding his knee between his legs so that Kaeya can grind his increasingly wet cunt against it. 

Diluc pulls away, to Kaeya’s frustrated whine, “That can be easily arranged.”

Kaeya scowls, “Don’t tease.”

Diluc nudges him to stand up, and carefully lays him on the counter top.

”We are in public,” Kaeya hushes, blushing as he clutches the lapels of Diluc’s coat.

“Then be quiet.” And that’s all Diluc says, before he tugs Kaeya’s pants down and yanks his thighs apart to delve into his cunt.

Shit. His tongue. Kaeya moans, and his thighs instinctly tries to squeeze around his head, but Diluc holds them apart with the insistent press of his palms. Diluc licks a stripe across his sex, flicks his tongue against the opening, before spearing inside his cunt and eating him out. Kaeya keens with each lick of that clever tongue, muffling his cries with the back of his gloved hand.

”Diluc, I need - ah!” Kaeya bites his lip to fight off the scream when Diluc sucks at his clit. Diluc pulls away then, and Kaeya blushes at the sheen of slick on his lips and chin. Diluc bites the tip of his glove to pull it off his hand, and does the same thing with the other. When his hands are bare, he wipes his chin with the back of his hand, and begins tugging Kaeya’s  coat away so that he can lift up his shirt.

”I can’t knot you here,” Diluc says, looking like he’s studying a particularly interesting report, “but let’s work with what we have.”

He leans down to one of Kaeya’s swollen nipples and sucks. Kaeya cries out. Now that he’s pregnant, his breasts always feel swollen, nipples sensitive and tender from the milk inside. And Diluc is not gentle with them, biting and sucking one nub hard, the other nub at the cruel ministration of his fingers. Kaeya gasps when he feels milk squirting out of a nipple into Diluc’s mouth, and his hands reach out to dig into red hair, the throes of pleasure and pain at war with each other, and he doesn’t know whether to tug Diluc away from his chest or to hold him there. Diluc takes the choice away from him anyway, pinning him down to work at his chest, and milk dribbles into that wanting mouth and over calloused fingers.

Below, Diluc’s other hand is toying with his cunt, four of his fingers languidly curling inside, teasing minute circles against his walls. Kaeya’s needy cunt needs much more stimulation than that, and he cants his hips to swallow more of what Diluc offers inside. Kaeya is so sensitive, that when Diluc dislodges himself from his nipple to whisper against his lips (“Come taste how sweet you are,”) and kisses him, the taste of milk on his tongue has him spasming over Diluc’s fingers.

As Diluc withdraws, Kaeya, still trembling from the aftershocks of his orgasm, clenches desperately around his fingers to keep them inside. Diluc huffs, “You are insatiable.”

Kaeya gazes at him from the counter, face flushed and lips bitten red, and says coyly, “You should put your cock in me.”

Diluc hums in consideration, as his fingers leisurely stroke at the wet twitching walls. “You really like having something inside you, huh? Maybe we should be getting you a plug. Not one, but two. So you can feel something in both your ass and your cunt all the time.”

Kaeya’s thighs tense in arousal, his cheeks flushing redder from the sheer filth uncharacteristically coming out of Diluc’s mouth. “I want you,” Kaeya manages to pout.

Diluc’s gaze softens as his fingers slide out of him, to Kaeya’s disappointment. The damp hand brushes over his clit, before it rests on his abdomen. “I can’t knot you since you are pregnant, but,” Kaeya feels a hand travelling downwards to rub at the rim of his ass and shivers, “this part of you... when you are in my bed, we can try.”

“Later is later. What about now?”

Diluc snorts. He hikes Kaeya’s legs up, and turns his attention to the stiffened clit and the red folds under it. “Kaeya, come just from this,” Diluc murmurs, and before Kaeya can protest his orders, the warm mouth envelopes his cunt, killing the words in his throat. His tongue pushes in, as far as it can go, and then Diluc starts sucking the wetness out, to which Kaeya’s legs start flailing in response as he screams into his hands that are clasped over his mouth. Kaeya’s going to be driven crazy - the reach of his orgasm is so close and yet so far away, the frustration building side by side with the intense arousal, and he grinds his cunt against Diluc’s face desperately to try to take the edge off. But Diluc pins his hips there, fucking his tongue in and out of his cunt, occasionally teasing his painfully aroused clit and the twitching folds of his cunt. And when Diluc senses that his mate can’t take it any longer, he leaves a damp kiss on the inside of Kaeya’s trembling thigh, and frees his erection from his pants. The euphoria of a hot throbbing cock finally feeding into Kaeya’s hungry, dribbling cunt has him crying, milk spilling out his puffy nipples in response. And Diluc fucks him like this, licking the trails of milk on his chest, teasing his nipples with his teeth to drive his omega over the edge. Barely a few thrusts in, and Kaeya comes hard with a sob, release gushing out and soaking the cock inside him. 

Diluc pulls out, and wraps a hand over his cock to stroke himself, until he paints Kaeya’s stomach with hot white seed. He then grips the knot that has formed at the base of his dick, squeezing around it to relieve the ache of it not being inside his omega. He’s not in a rut, so the need to knot is merely a manageable impulse. For now Diluc admires his beautiful mate under him, how utterly wrecked he looks as he trembles with the aftershocks of his orgasm, marked thoroughly with Diluc’s seed, the thriving bond between them and the life they have created together in his omega’s womb proof that Kaeya wants him too. Diluc gently places his hand on the slight curve of Kaeya’s belly and smiles. When another hand covers his, Diluc looks up to see a genuinely soft look on Kaeya’s face. 

“It’s yours.”

”Ours.” Diluc corrects him.

The smile on Kaeya’s face is blinding. Diluc finds himself drawn to it, grinning as he leans down to kiss him deeply, to show him the overwhelming affection in his heart.

“Hey Patton, are you just standing here? Why is your face so red?”

”I’m. Uh. Um.”

”Oh is the Angel’s Share open already? Let’s go inside and have a drink!”

”NO! DON’T GO INSIDE!”