Work Text:
Pacing down one of the many long halls, Kiyoomi’s walks with purpose, adjusting the black veil partially covering the top half of his face. As he walks, he lifts his long black down, gripping the lace so tight his knuckles grow white from the strain.
“Shinji is down for the evening,” he says aloud, the only other person present is his personal guard, walking ten steps behind him. “I need to get out of this damn dress,” he mumbles to himself as he picks up the pace, turning to walk up a long, winding staircase, his small kitten heels clicking on the stone floor. “And these fucking–” he hisses, slapping a hand to his scent patches. “I swear they just want to torture me, how anyone can wear this things for an entire day is beyond me. If there is one thing about the late king that I absolutely didn’t detest, is the fact he preferred me natural.”
He’s stressed, his eldest son's coronation only days away after the king – Kiyoomi’s alpha husband, passed away under suspicious circumstances only a few weeks ago. The crown has been in disarray ever since, their best investigators and spies working in the background for any leads as to who could have possibly been responsible for their late king’s downfall.
Behind Kiyoomi, Miya Atsumu, his closest and most trusted guard, smirks.
They pass several beta maids and servants in the hall who make room for their queen, bowing low and muttering a quiet your grace which Kiyoomi ignores. Pent up, frustrated and simply finished with parading around pretending to be upset with his husband's passing, he cannot wait to be alone in his chambers without needing to worry about all the duties he’s required to attend to.
Down the hall, up a grand staircase, past the library where a singular glare at two of the castle’s trainee maids has them clamming up and rushing away from him, and finally, finally they’re alone.
The whole way up to Kiyoomi’s wing, Atsumu hadn’t said a word, keeping ten paces behind, silent, like any loyal guardsman would. But the second Kiyoomi unlocks the room to his chambers, stepping inside and leaving the door open for Atsumu to enter, the alpha is upon him.
“Undress me,” Kiyoomi demands when he hears the lock click behind him. “You’ve kept me waiting long enough, don't you think?"
“That an order?” Atsumu asks with a sly grin, both hands planted on Kiyoomi’s clothed hips as he walks the queen backwards to his bed.
Allowing himself to be led backwards, Kiyoomi lets out a little huff when the backs of his knees hit the top of the mattress. “Yes. If you think you’re going to fuck me in a dress again, you have another thing coming, alpha. ”
“Demandin’,” Atsumu comments. “Turn around then, your grace–” and he spins Kiyoomi around so quick it knocks the breath out of the omega, Kiyoomi falling forward and bracing his flat palms on the bed as Atsumu begins unlacing the back of his dress. “Kinda don’t wanna fuck ya in yer funeral attire, doesn’t feel too sexy.”
Rolling his eyes, Kiyoomi daringly pushes his ass back into Atsumu’s crotch, urging the alpha to hurry. “Get on with it.” Then, after a beat. “I have a treat for you under all of these layers.”
“Oh?” Atsumu asks, the last of the lace on Kiyoomi’s corset finally undone as he fiddles with the fine garment, unhooking it from Kiyoomi’s upper-half and tossing it unceremoniously across the room. “I’m likin’ the sound of that, highness. Who’d have thought that the new queen mother was so generous.”
“ God, Atsumu,” Kiyoomi hisses, feeling his resolve start to twist and snap. “Get the skirt off. You’re insufferable.”
With Kiyoomi’s shirt layers now dropped to the ground by their feet, Atsumu finally has access to the back of his neck. He yanks down the top of Kiyoomi’s undershirt, attaching his lips to his nape with a possessive growl.
“Ya won’t be sayin’ that in a few minutes, baby.” Nipping and sucking at the sensitive skin, Atsumu’s hands find the scent patches behind Kiyoomi’s ears, ripping them off and dropping them to the ground with the rest of his clothes. “Smell so fuckin’ good, can taste yer slick already.”
Gasping, Kiyoomi pushes his ass out further, grinding against Atsumu’s armour. It’s not enough, the layers of Atsumu’s uniform concealing the press of his hard cock against Kiyoomi’s rear.
“Too many layers, off, off,” he protests, reaching behind him to pull weakly at Atsumu’s breastplate. “I want to feel you.”
Laughing, Atsumu gives Kiyoomi’s neck one long lick, sucking a bruise into a patch of skin that is covered by his usual clothing, before reluctantly peeling away to set to work removing his breastplate and armour.
“Yer so sexy when yer bossin’ me around, ‘specially when it’s in front of everyone else.”
When Kiyoomi stands, removing his heels and turning to unclasp his skirt, Atsumu’s mouth runs dry and he almost drops the golden breastplate in his hands. Standing with a hand on his hip, looking wholly unimpressed, Kiyoomi faces Atsumu with the fresh damp milk stains ruining his undergarments.
“See what you do to me? I fed Shinji an hour ago, and pumped these right before the meeting.” When he drops his overskirt to the floor, now only standing in his undergarments – a white, almost transparent lace nightgown, Atsumu’s eyes practically bulge out of their sockets. “Ah, ah, no–” chastises Kiyoomi, one hand splayed out on Atsumu’s chest to stop him from advancing towards him. “Undress first. All of it.”
A low growl erupts from Atsumu’s throat, the words absolutely fuckin’ not, on the tip of his tongue, his alpha unsettled with the irresistible urge to massage and drink from Kiyoomi’s swollen tits. Yet somehow, a few words from Kiyoomi has him trapped under the omega’s spell and all he does is watch as Kiyoomi settles down amongst the silks and furs of his bed, draping his body across the expensive materials seductively.
Legs spread, Kiyoomi extends a socked foot out, his expensive silk stockings on show for Atsumu to remove. A sliver of Kiyoomi’s pale, milky thigh is revealed when the white material rolls up to his hip and Atsumu’s cock throbs inside his pants.
“The things you do to me,” Atsumu complains dramatically as he hops around on one leg, fighting to remove his boots and socks. “Goin’ to really kill me one of these fuckin’ days, Kiyoomi.”
As Atsumu fights to undress, Kiyoomi grows impatient, shirking up his skirt so he can slowly start to rub himself over his white frilly breeches, the soft cotton at his crotch darkening where his slick seeps through. The fresh scent of sugary-sweet caramel and cinnamon fills the room and the omega watches with amusement as Atsumu’s pupils dilate, nostrils flaring so he can taste the air.
With his head tossed back into the soft pillows, Kiyoomi rubs two fingers over his clothed cunt, toes curling on the bed. “Oh,” he mutters quietly, eyes fluttering closed. “I could finish like this. Two fingers, no knot–”
Atsumu’s audible growl makes him jump and Kiyoomi barely has time to roll to the side when his guard is pouncing onto the bed.
“Enough of that,” hisses Atsumu, grabbing both of Kiyoomi’s delicate wrists in his rough, calloused hands. He pries them from Kiyoomi’s chest and pins them above his head, the alpha now inserting himself forcefully between his omega’s pretty legs. “We both know yer not satisfied until this cunt is sore and achin’”
As though to prove his point, Atsumu rubs his knee hard against Kiyoomi’s clothed pussy, pressing in until Kiyoomi exhales suddenly, his body jerking at the intrusion. There’s a moment where Kiyoomi opens his mouth to retort, but the knee is quickly replaced by Atsumu’s rough fingers, where he spanks Kiyoomi’s cunt, grinning when he feels the warm wetness seep through onto his hand.
“Miya, fuck me,” Kiyoomi complains frustratedly, desperately trying to grind down on Atsumu’s hand. “We’ve barely had a moment alone in weeks and you’re stalling. ”
“ Stallin’ he says,” Atsumu mocks, grabbing one of Kiyoomi’s long, slender legs to squeeze the meat of his inner thighs. “It’s called enjoyin’ ya, baby.”
It’s not quite true, there was the time a few nights ago when Kiyoomi ordered him to his chambers late in the night, only for the omega to have fallen asleep sprawled out across his bed by the time the knight got to him. Atsumu, horny and desperate to fill something that wasn’t his fist, had fucked Kiyoomi anyway. Slow and deep, grinding his cock inside his tight cunt, careful not to jostle Kiyoomi too much in case he woke him. He ended up pulling out at the last second, knotting the air and coming all over Kiyoomi’s pretty yellow underwear. After tucking Kiyoomi back up, he scented his omega so Kiyoomi would know which alpha violated him in the night and he disappeared as though he’d never been there.
In return, Kiyoomi ended a meeting midway through to order Atsumu to eat his cunt out until his jaw ached and his knot was practically swelling untouched. Atsumu hadn’t complained much, what his queen wants, his queen gets and they both know he always ends up crying as he’s impaled on Atsumu’s knot later.
Atsumu really does take his time, his hands running up and down Kiyoomi’s lithe body, grabbing and squeezing every inch of exposed skin. Kiyoomi watches with lidded eyes, his cheeks flushed prettily, one strap of his nightgown slipping from his shoulder. The alpha kisses him all over, starting at his neck – right on the sensitive spot below Kiyoomi’s ear.
“ A–Atsumu, ” he gasps when that tongue dips across his collarbone, his knight's hands kneading and worshipping his sore breasts. They’re small and perky, fleshier since the birth of his pup months ago. As are his stomach and thighs – allowing Atsumu to grab handfuls of him all over . “Lower.”
Not needing to be asked twice, Atsumu gives Kiyoomi’s tits a hearty squeeze, the milk spurting out around his fingers, before kissing lower and lower, down to his chest. The alpha’s hard cock twitches in his shorts, pressing firmly against Kiyoomi’s thigh.
“Ya taste s’good,” Atsumu slurs drunkenly against Kiyoomi’s skin, nipping and sucking on his descent to his nipples. One harsh tug on Kiyoomi’s nightgown and the material is yanked below his breasts. They bob in the air, milk spurting out which Atsumu captures between his lips expertly. “ Mhmm. ”
Moaning between hard sucks, Atsumu’s tongue laps over him, his front teeth grazing the sore nipple. The warm liquid floods his senses as Atsumu swallows it down greedily, chasing that sweet cinnamon-caramel on his tongue. He gulps it down like it’s his last meal, his alpha rumbling happily that he’s finally getting a true taste of his omega. It’d been torture, watching the king have what had been rightfully Atsumu’s from day one, Atsumu longing to be the one to knot and breed his queen. Something possessive overcomes him and he bites down hard, likely bruising the skin surrounding Kiyoomi’s areola. His sucks turn erratic, his free hand pinching and pulling on Kiyoomi’s other nipple.
Kiyoomi exhales sharply at the pain, nails digging into Atsumu’s back almost deep enough to draw blood. His cunt slicks up almost immediately, Kiyoomi pressing his thighs together as though it’d be enough to alleviate the growing warmth between them. Atsumu is quick to remedy that, growling and forcing Kiyoomi’s legs back open, his hand dipping back down to rub at his clit over his panties.
One particularly harsh suck has Kiyoomi calling out his name, his back arching, nails scratching deep down Atsumu’s back.
“ Please, ” he begs, though he doesn’t need to say what for. The alpha abandons his abused nipples, giving them one last slap before he’s pulling Kiyoomi’s panties to the side to stuff him full – three fingers deep with no preparation.
Kiyoomi takes them beautifully, gasping when a thumb pushes down and circles his clit, the three fingers inside curling and fucking against that sweet spot inside. It isn’t long before the bed is drenched in slick, dripping down Atsumu’s hand as he fingerfucks Kiyoomi, his teeth grazing against the stockings on one leg. Atsumu works Kiyoomi close to orgasm, keeps him teetering on the edge from his fingers, his omega crying out in frustration and tossing his head back into the pillows, his toes curled and sliding along the silken sheets.
“Take it, good boy,” Atsumu praises, his voice rough and low with arousal as it vibrates against the skin of Kiyoomi’s bare thigh. “Not so demandin’ now, are ya?”
“ Ah– Atsumu!” Kiyoomi calls out, his legs jerking, seconds away from coming from the thumb rubbing circles against his clit. “S-stop, fuck me,” he manages to say after a long moment, his brain mush already, senses drunk on Atsumu’s scent filling the room. “Fuck me.”
“Found yer voice, didja?” teases Atsumu. Still fingering Kiyoomi open, he bites down on Kiyoomi’s inner thigh, sucking a purple bruise into his skin with a devilish smile. With a hand dipping down between his legs, Atsumu fumbles to pull down his breeches, freeing his painfully hard cock.
It sits heavy in his palm, leaking sticky precome over his fingers. For a moment, Atsumu watches Kiyoomi spread out beautifully for him, legs outstretched with pulsing cunt on display, milky tits still leaking and ruining the fabric of his soiled nightgown. The alpha jerks himself steadily, gaze hot and intense on Kiyoomi’s.
“Yer perfect,” he grits out, massaging the head of his cock. “Born to be fuckin’ bred.”
“Come on,” Kiyoomi breathes, hooking a leg behind Atsumu’s back to push him forward. “I’m ready, I want you, my knight.”
“Let me fetch a condom,” Atsumu tells him, dropping a kiss to Kiyoomi’s knee before rising to fetch them from Kiyoomi’s secret box. He doesn’t make it off the bed before Kiyoomi is stopping him.
“No.” He sits up, legs still spread wide, frowning. “Go without.”
“ Kiyoomi. ”
“You know my husband was calling on me the moment I gave birth, don’t you?” Kiyoomi grimaces at the memory, having barely recovered from the birth of Shinji – the pup tearing him bloody, before the king had been summoning him to his chambers for a night together. He had been disgusted by Kiyoomi’s pregnant tummy and had wanted to wait until after the birth before fucking him.
The king hadn’t come inside, but nobody knew that except Kiyoomi.
“It’s our only chance,” Kiyoomi says hopefully, grasping Atsumu’s wrist to tug him back. “If we leave it any later, suspicions will rise. I want one final pup, but I want it to be yours, Atsu.”
“ Fuck, ” Atsumu hisses, his inner alpha wild at the prospect. “Fuck, fuck, okay.” Reaching out, he cups Kiyoomi’s cheeks. “You’ll tell me if it’s sore, won’t ya?”
Kiyoomi looks off to the side, cheeks heating. “I practised with a knotting toy – to make sure it wouldn’t tear again. There was no pain.”
“ Christ,” Atsumu curses, moving in to hungrily kiss Kiyoomi on the lips. “The things ya say, I really have died and gone to heaven.”
Kiyoomi hides his smile by kissing Atsumu again, their lips moving together as one. It’s sweet, almost chaste for a few moments until he feels himself slick up again, cunt clenching around nothing and he whines lowly against Atsumu’s lips.
“Y’ready baby?” Atsumu slurs against Kiyoomi’s lips, smiling into it. He’s now leaning over Kiyoomi, nestled back between his legs as they kiss, his hand pumping over his cock.
“Yes, Atsumu, please.” Hooking both hands around Atsumu’s neck, Kiyoomi traps the alpha against him, releasing a shuddering breath when Atsumu rubs the head of his cock against his pussy lips, grinding it over his clit teasingly. “Fuck me.”
“Love it when ya ask so nice,” smirks Atsumu, finally sinking into that wet warmth. He starts slow, pushing inside carefully as he watches for signs of discomfort, but when he feels Kiyoomi clench around his cock, scent sweetening, he sinks in the rest of the way in one swift movement.
From there, he fucks into Kiyoomi relentlessly, drinking in his loud moans with a deep lasting kiss. Atsumu fondles him all over, squeezing his tits as he fucks into him, his alpha grumbling at the sight of them squashed beneath his palms. Kiyoomi writhes and gasps beneath him, clutching Atsumu like a lifeline as he’s fucked into, fisting his hands in his blond hair, grabbing and squeezing his back and shoulders.
“I’ve fuckin–” Atsumu huffs, grabbing Kiyoomi’s hips so he can glance down between their sweaty bodies to watch his cock slip in and out of his stretched cunt. “Always wanted ya, since I first set eyes on ya– fuck. Needed this, needed omega .”
“You’ve got me,” Kiyoomi tells him sincerely, reaching up to chase Atsumu’s lips with his own. “Now he’s out of the picture, you’ve got me.”
“Don’t– fuckin’ mention him while I’m inside ya,” spits Atsumu, the possessiveness of his tone sending shivers along Kiyoomi’s body, his omega chanting our alpha, our alpha . “Fuck, I’m not goin’ to last like this.”
As though to prove his point, Atsumu pulls out before slamming back into Kiyoomi hard enough to jolt the bed against the wall, the headboard smacking against the wallpaper over and over again. There’s a rip, and Kiyoomi’s nightgown is in two pieces on the bed so Atsumu can have full access to his tits and stomach. Obsessed with Kiyoomi’s new mom-bod, he squeezes him all over, dipping down to suckle at his tit again as he pounds into him.
“ Oh, oh, ‘Tsumu– ” Kiyoomi cries out, hands fisted in Atsumu’s hair as he pushes him down onto his chest, legs wrapping around Atsumu’s lower back. The alpha cock carving a spot into his cunt, paired with the lips attached to his sensitive nipples, is too much for Kiyoomi to bear. “That’s it, alpha, drink up…Make me come, want to feel that knot inside–”
Soon his babbling turns incoherent as Kiyoomi floats, his mind cloudy and muddled with the only thing he can focus on being his true alpha’s cock hitting against that sweet spot over and over. The familiar tingling sensation takes over his body as he shudders through an orgasm, the heat pooling in his lower stomach and rising up throughout his entire body. Slick gushes out from Kiyoomi’s pussy, seeping out around Atsumu’s cock and staining the bed below them. Kiyoomi rotates through moaning a chorus of Atsumu and my alpha as he’s fucked through it, until he clenches around Atsumu’s cock and the alpha comes suddenly with a deep growl, teeth attaching to his skin to bite a bruise into Kiyoomi’s chest. His knot swells, catching on Kiyoomi’s inner walls and locking them together as he pumps his omega full of come, breeding him.
They pant in unison, Atsumu shuddering as he milks himself inside Kiyoomi. When Kiyoomi has recovered enough to move, he lifts a shaky, numb hand to card through Atsumu’s messy hair and to coax him up to look at him.
“Shit,” Kiyoomi breathes, smiling weakly. “I needed that.”
“I sure hope ya aren’t going to regret this,” Atsumu says, though from the blissed out look on Kiyoomi’s face he knows his omega never could. The thought sends a sick thrill up his spine and he can’t help but kiss him again, nibbling at Kiyoomi’s lower lip, drinking up the purr that escapes Kiyoomi’s mouth unbidden.
Post-sex Kiyoomi is pliant and extra cuddly, when Atsumu’s knot deflates enough for him to pull out, he’ll fill the tub and clean his queen up, before rearranging the nest and sinking into it beside him.
“Don’t be ridiculous,” Kiyoomi says with a slight frown. “I said I never wanted that old man's pups again, but I never said I didn’t want yours. Just think, your own little royal prince or princess.”
He couldn’t ever be a Miya and they both know it, but it’ll be their little secret forever.
Atsumu lies across Kiyoomi’s front, contentedly drawing circles on his skin while Kiyoomi continues to speak.
“Next month when I return to Itachiyama–” with the king dead, and Kiyoomi’s eldest son taking the throne, it’s customary for the widower to travel to their stronghold in the North. “You’re coming with me.”
Atsumu perks at that, instantly sitting up and wincing when he accidentally pulls on his knot. “Omi?”
“What?” Kiyoomi playfully tells him. “You didn’t think I’d fuck you and leave you here, in the capitol? I’m going home, with you, Shinji and hopefully, a secret Miya right here.” Lifting one of Atsumu’s hands, Kiyoomi presses it against his womb.
“Fuck, Omi, when this thing goes down, I’m fuckin’ ya again hope ya realise.”
Stretching like a cat, Kiyoomi smirks and pats through Atsumu’s hair again. “Eat me out first, and we have a deal.”
Well fuck.
Atsumu is so glad he stabbed his own king in the back for this.