Work Text:
The Prime Alpha Dragon Prince has gone through every rut alone. He refuses to take any of the willing maidens or gentlemen that have thrown themselves at him. He also has refused to take advantage of the little bell he can ring to have any Omega thrown into his chambers to use. This rut, though, this one is torture.
His scales keep rising to the surface, his horns are piercing through his scalp and he's burning his sheets and furs. His body aches severely, pulses with agony for him to mate. He'd probably mate a fucking sheep with the desperation he feels. He thinks he might just be going insane.
He rings the stupid, shitty bell when he can’t take it anymore. His burning hands not able to satisfy him, nor the aids the alchemist had made. He knows it's not right, there is no integrity in this decision. There are those willing but he hates all of them, just chasing him for his title, his riches, his bloodline, his name. The servant waiting outside makes a surprised squeak at the noise and then cackles.
"Get him," she demands, "let him be useful in the way he was meant to be. They can't protect him in here and from him."
It feels like the purgatory those saint worshipers speak of to wait, but he does, huffing steam and smoke and with palms sparking. The door to the servant tunnels finally opens only for an Omega to be thrown into his chamber wearing nothing but undergarments. They smell of preheat which means they were stolen from their own bedchambers to be brought to him. In the dimness of his room with drapes drawn, the being stands and is trembling nonstop.
“Sire,” he whispers, a male Omega, as he shakily walks to the bed stripping himself of what little garments he wears, “they said I was chosen to sate your rut.”
Finally lifting his face with wetness on his cheeks, the scarlet eyes of the prince grow wide. This is the one who tends to the dragon stables, the one person the dragons dote on as he feeds and cares for them. This Omega, Deku he thinks, had surprised all others when his mother, the Dragon Queen, so long ago had chosen him as an abandoned babe, and his father, the Common King had agreed after inspecting the babe, to be trained for such a task. An infertile male Omega. The ambers had only changed in his presence the story states, which spoke of hidden potential.
“There must be a mistake, the dragons would have protected you from this fate,” the Prince growls even as his fingers itch to touch the naturally sweet smelling being laying himself on his furs.
“I am not allowed in the stables during heat, your highness,” Deku whispers as his head is cradled by one of his pillows, “and the other Alphas in the castle were complaining of my distracting scent and so I was brought here for punishment.”
“Punishment,” the Prince mumbles, “truly it will be since you are infertile, you won’t sate my Alpha.”
A sly smile spreads across, the jade-haired, emerald-eyed, freckled, male Omega’s face, “All have been led astray by your father, my prince. I may be called male, but I am not infertile.”
The smaller male let’s his legs fall open and the Dragon Prince groans at the sight. A rare, intersex, fertile, male Omega. His shaking had not been from fear, but from need. The prince would have to thank his father, for these beings did hold hidden potential in the form of wild magic and untold fertility. The King had been protecting something precious with the direct presence of dragons and the servants had no idea what they had handed over.
The Dragon prince climbs over Deku, his black scales shifting across his skin in his eagerness, as green eyes focused on his face glow slightly in the darkness, “You can call me by my name for you will be my mate at the end of this. You already command the dragons’ attentions, now you will command all of dragon-kin’s as well.”
The Prince wastes no more time positioning himself between spread, slick thighs, and then pushing into the relief offered him. Praise the spirits, this is what he needs. Alchemists’ aids be damned, they are nothing compared to this. Deku raises his hips to take more of him as he gasps, and the Alpha thrusts forward violently in need to pop his knot before going entirely feral.
There are hands scratching at his back, grabbing at his ashen blonde hair, and a voice chanting, “Katsuki, Prince Katsuki, please, please, KACCHAN!”
His childhood name breaks him from any control he had been trying to exercise, remembering the other royals mocking what his mother called him in spite. Then the memory of the green-haired stable boy bringing out a dragon for his training takes place in the forefront, the Omega reverently saying it like a prayer before the other rich bastards would shoo him away like a fly. Katsuki is hungrily kissing soft lips, grabbing at freckled hips, and slamming into the cunt that is so hot, tight, and wet.
It’s then he feels his body shifting more from his lack of control and his Alpha also wanting to ensure his seed catches in the being underneath him. Deku’s sounds become strangled as his cock gains ridges and size without his knot yet swelling. The Omega’s back is arching and the Prince moves to grab his headboard with the hand starting to flame. He then feels his tail whip out behind him and his wings and horns spring fully free.
“Ka-ka-kacchaaaaaan!” Deku wheezes before his own magic runs wild.
Antlers and long ears bare themselves as his teeth grow sharp like Katsuki knows his have. Feathered pinions are suddenly spread across the bed and newly clawed hands cling to the furs and his forearm. Kin of the Wolpertinger, a most delectable prize, one so fertile there is no question his seed will take. Deku will be the powerful dam of his spawn and fuck anyone who try to take this away from him.
The Dragon Prince presses his nose against the side of the Omega’s throat and yet he doesn’t want to mark him like this. He wants it on Deku’s nape, upper and lower canines pursing both scent glands so no one can refute his claim. He rumbles against the fragile skin as his hips keeping rocking to satisfy his need, the Wolpertinger’s own rolling to meet him even as his pace picks up.
“After this, little rabbit, I am fucking you from behind and sinking my fangs into your damn glands and making you fucking mine,” Katsuki growls around those very growing fangs as he angles his thrusts deeper.
The Omega whines but nods, “Whatever, AH, you want my prince.”
“Good fucking Omega,” the Alpha snarls, “going to breed you so well.”
His thrusts turn pointed, one hand moving so he can warp his arm around a slender waist as the burning claws of his other hand sink into the headboard. Keeping Deku’s hips lifted, he buries himself deep every time he bottoms out, groaning against the feeling of the Omega’s pussy swallowing him. Deku’s screeches, squeals, and moans meld with his own growls, snarls, and groans. His Alpha notes that there are servants outside his door giggling at what they probably perceive as the stable boy’s pain. They will die as soon as this rut passes.
“ALPHA!” the Wolpertinger yells as his knot starts swelling along with the ridges, stretching Deku’s tight cunt for breeding. “KACCHAN! I- I CAN’T!”
“YOU CAN!” he commands and he feels the Omega relax against him, almost falling limp. “You’re too fucking perfect not too,” he then rumbles in placation. “I will take care of you, little rabbit.”
The prince makes sure he does. When he knows his thrusts are becoming too much, he stays buried in that tight heat and grinds against the one so willing to sate him. His other hand, no longer aflame, moves to stroke the small cock between their bodies. With his knot swelling inside and Deku’s hips still trying to move against him, his eyes are rolling back with his incoming orgasm.
It hits like a firestorm as soon as those tight walls become suddenly tighter, clamping down on his knot and stealing his breath away. He throws his head back, wings spread and tail stiff, fanged mouth open in a silent scream as it feels like the one beneath is trying to steal his soul through his dick. Izuku noises are breathy but sound just as surprised. Katsuki’s hips jerk without his consent, the Omega beneath him squealing at the tug on the tie, before it finally pops filling him with his seed.
It is less than an hour later that Deku’s face is pressed into the sheets and his ass is raised high for the dragonkin to sheath his dick into that welcoming, slicked pussy from behind. Katsuki takes him as rough as before but promises himself he’ll make up for it when they are free of heat and rut. Those feathered wings are spread before him as the Omega whines and whimpers from his thrusts, iridescent evergreen and burning, dark burgundy meet his gaze. It’s hypnotizing, the colors soon becoming some of his favorites.
He runs his cooler hands down the Wolpertinger’ back, feeling both smooth skin and soft feathers but knowing Deku’s primaries are sharp as swords. These creatures are as deadly as dragons, their softness a clever deception, and Katsuki is fucking one, ready to mark him at the right moment. He has also seen sparks of green lightning crossing freckled skin like static arcs when you move blanket during a winter night, such wild magic.
“Kacchan? More, please, more, “Deku whimpers from underneath him, round hips pushing back to meet his thrusts.
The prince’s scaled hands grab the Omega’s shoulders, shoving him back harder as he snarls his answer with every mirroring onslaught of his cock. The servants are still outside mocking Deku’s voice and fueling the dragonkin’s need to make this one underneath him wail in pleasure. He succeeds, the being calling out his name, begging him for anything and everything, and spreading his legs wider to take more. This time, when his ridges and knot begin swelling, Deku is crying out with every plunge, pleading for it.
Unhinging his jaw, Katsuki leans over the back of the Wolpertinger and tilts his head, readying himself to sink his canines into the Omega’s scent glands, top pair into the right side and bottom into the left. Thrusts short and measured, feeling as it becomes harder to pull out, he scrapes his sharp teeth across Deku’s exposed neck in warning. A pitched whine leaves the stable boy’s throat before the Prince’s knot locks and his teeth pierce unblemished skin to pollute the Omega’s bloodstream with mating venom.
A haze fills Katsuki’s mind, their magic making the bond more potent, emotions, intuitions, and thoughts being shared in a misty sort of inner fog. He pulls his teeth from the wound and begins licking it clean as the Deku enters float, his body going lax and an odd sort of purring escaping his throat. The rest of their shared rut and heat is cycles of mating, float, and delivered meals, Katsuki keeping Deku hidden from nosy servants, playing up possessive protective Alpha.
The morning when he wakes with no more symptoms of rut, Katsuki orders a hot bath, breakfast, and clean sheets and furs to be brought to his rooms and also calls for Kirishima. He demands them not to use the servant entrance into his bedchamber, only tells them to leave the clean linens outside his foyer door with the heated bath and food. The head servant questions this with him no longer being in rut and therefore clearheaded.
“Sire, if you are worried with us seeing the state of the Omega it is no issue. We can remove him ourselves and get him out of your scales,” she smirks as if she is just wanting to empty out the chamber pot.
The Dragon Prince lifts his top lip and dangerously rasps while wrapped in a black robe, “Are you truly wishing for your fucking death? You already stood outside my door, mocking what you thought was someone’s torture. Trust me I say, I have your days are numbered, Beta.”
Her barely-there scent still turns into the aroma of terrified prey and she makes her way far from the Prince as quickly as possible. Once the rest of the servants perform their duties and leave, Katsuki goes to his bed to lift the still resting Wolpertinger from the soiled furs. He is so very careful as he carries him to the steaming tub of water and slowly lowers his naked form to be cleansed.
There are four knocks at his main door then, a familiar voice calling out, “Bakugo? You called for me?”
Seeing green eyes slowly opening, Katsuki leans forward to kiss Deku’s forehead and then head to the door.
He opens it just enough and ushers the other dragon-kin inside, “Scales-for-smarts, get your ass in here.”
“Uh, right after your rut? What could you possibly need me for?” are Kirishima first words before he turns and jumps at sight of the being in the tub. He squints and then his eyes grow wide as he looks back at the prince, “Isn’t that Midoriya, the stable boy? I thought he was a little more human than that.”
“I can be,” his voice answers from the tub and both dragon-kin watch as the feathers, ears, antlers, and other animalistic bits shift or disappear altogether to leave a plain looking, curly-haired man. “Hello, Ei. Are the dragons doing okay in my absence?”
“Yes, they are but they have been uneasy without you close by,” the red-haired, crimson-eyed court member replies. “I am sorry, I had no idea you contained that much magic and have no idea what you are anymore. And why are you in Bakugo’s chambers?”
“He’s a Kin of the Wolpertinger,” the Dragon Prince answers as he moves to strip and slowly slide into the tub along side his new mate. “The shitty servants brought him to sate my rut stating it was punishment for him annoying other Alphas in the castle with the scent of heat.”
“He’s infertile, how could he sate it? The dragons will not be pleased,” Kirishima murmurs as he stands close but far enough away to be respectful.
“Oh, he’s fucking fertile,” Katsuki smirks as he begins washing wild curls, “and my damn father knew and hid the very thing he was away for me to find later. I mated him, shitty hair, and I need your help getting things into motion.”
***
It’s several weeks later when it all comes to be. Izuku, Katsuki learned that is his true name, returned to the stables after their time together to calm the dragons and to play his role. The Prince had given the Omega high collared shirts and cloaks to wear in the worsening weather and to cover the evidence of what had happened for a time. Now he was going out to not only inspect the winter accommodations for their dragon brother and sisters, but to retrieve his mate for their unveiling as a mated royal couple.
The dragons grunt and chuff at him, some hitting him with their snouts for attention. He pets them, scratching at dry scales and commands stable hands to oil the areas from the cold dry air before asking about his mate's location. They nod in acknowledgement while pointing him in the direction of Izuku. He finds the Omega with a female dragon currently laying a clutch.
It’s her first and her mate is off on patrol with their rider. Izuku is cooing to her and singing her praises as each egg leaves her. He tells her how beautiful their shells are, how perfect their shape is, how much their sire will owe her for all her hard work.
“He will have to hunt fat ox, elk, and moose for you. He’ll bring them to you blooded and ready for feasting. Maybe he’ll search for treasures, beautiful, shiny things from the mountains to decorate your nest and make it sparkle. Look, already nearly a dozen eggs. He will be so proud of you!”
Her steamy breaths are heaving as she crouches on her hunches to lay each one, Izuku following her and stroking her eye ridges to keep her calm. The last one, the fourteenth, has her collapsing on her side and wrapping her tail around her bundle of pulsing, toddler-sized, soft-shelled eggs that will harden with every breath of heat blown on them. Not a few moments later, reptilian-like screeching is heard as her mate lands in the field, dumping his rider and scurrying to his new family.
When male dragon enters the hatchling stable, he immediately rubs his large head carefully gently against Izuku in gratitude before heating the eggs with his breath and curling around his mate. The jade-haired Omega chitters and chirps in happiness at the sight before releasing a sigh. He then turns his sparkling, amused eyes to Katsuki because the Alpha is chuffing unconsciously at the view of his mate next to a family. Izuku purrs to encourage the sound.
“Little minx,” he rumbles as he walks into the stable to wrap his muscled arms around the stable boy, soon to be Princess. “It’s time, little rabbit. We need to get you all dressed up and ready for your surprise entrance into the royal court.”
Izuku leans back against him, watching the new family about to doze off, “You won’t mind whelps early into our mating, right?”
“Hell no,” he growls as he nuzzles the crook of the Omega’s neck, “I’ll show off your growing belly to everyone.”
“Kacchan!” Izuku laughs. “You’re ridiculous!”
***
The ballroom is already filling, the Queen and King sitting on the dais on their thrones watching as members of the royal court and kingdom’s aristocracy arrive. The Queen is dressed in her traditional bloody reds and golds, her dress looking more like armor then something fit for a party. The King is in golds and dark greens, dressed simply in comparison, never letting go of his commoner roots.
“I can’t believe you didn’t tell me Masaru,” The Queen angrily murmurs are a servant brings her mead.
The King takes his own goblet, “Mitsuki, dear, I had to keep it as hidden as possible, even from you. You told me when we mated, if I ever found another like me …”
“To keep them hidden and safe even from me, yes yes, I know. Still, you played the game well. To hide a treasure in the stables full of creatures that keep it and horde it. Your mind is amazing.”
“And that is why we mated, is it not?”
The Queen eyes her King, “And this treasure has a mind like yours?”
“Better, actually. He is quite an amazing being.”
They both turn to look at the crowd already gathering on the ballroom floor splitting to allow their son to march up to the dais, ascend the stairs, and then say with a bow, “My Queen, my King.”
“Son,” Masaru grins, “is the treasure ready?”
Their blonde-haired, strong jawed, perfectly sculpted, scarlet eyed prince is dressed in black with burnt orange touches that will turn gold when he takes the throne. There is an added evergreen, one-shouldered cape that tells of the one who would soon be joining him. The sharp smile that spreads across his handsome face gives them enough of an answer.
“He is fucking gorgeous and perfect. He chose to dress a bit feminine, his kind enjoying to fluidity of it all. Kirishima is with him,” Katsuki answers as he moves to stand next to his mother’s throne.
They wait another hour, being sure all have arrived before the announcement is made. The minstrels stop their playing only for the large drum to be hit four times to grab everyone’s attention. The Queen stands, the chainmail covering her dress clanking and grabbing the fire light of the candles and torches. She waits until all are quiet and their eyes on her.
Her eyes narrow before she loudly begins, “This event is in honor of my son, Dragon Prince Katsuki, and his choosing of a mate!”
The room erupts in whispers, curious, surprised, and irate, with the declared information. Too many hopeful Betas and Omegas are in the crowd thinking the ball was to be one where the Prince would choose a mate from among them. Even servants seem annoyed with the turn of events. Mitsuki waits, folding her hands in front of her with a glare, but grins evilly as Kirishima squeezes through the doors at the back of the room, only to close them tight and wait.
The crowd quiets at the look on the Queen’s face and she happily announces, “Prince Katsuki’s trusted adviser, Kirishima Eijiro, will now escort, Princess Izuku Midoriya to his mate.”
Katsuki watches as the servants he has known to mock the stable boy gasp, while royals and aristocrats look appalled even as Izuku enters looking like a spirit of the forest. Kirishima offers his arm and they begin striding through the reluctantly separating crowd, Ashido, the adviser’s mate, holding the train of the Omega's gown. It’s every shade of green one can think of, with dark burgundy flowers climbing along the hem and sleeve,s and silver stitching throughout topped off with a vining tiara settled in his curls.
Izuku is wearing a beaming smile as he meets Katsuki on the dais, allowing Kirishima to kiss the back of his hand before the redhead and pink-haired Ashido join the gawking crowd. Katsuki moves to lift the Wolpertinger’s chin to chastely kiss petal-soft lips. The Dragon Prince swears he hears some of party goers choking at the act. He only smirks as his mate blushes, turns to his mother and father to properly introduce Izuku, before gliding the Omega to the edge of the dais.
“This is my mate, Princess Izuku Midoriya, Wolpertinger Omega who is pregnant with our first,” roars The Dragon Prince with a manic smile and the crowd loudly gasps, cries, and yells against it. A dozen guards suddenly enter through the many servant doors, “If you wish to question this mating you can join the servants that insulted him during my last rut in the dungeons.”
The crowd suddenly starts scattering as the servants involved those weeks ago try to outrun the guards coming for them. Katsuki laughs along with his mother at the chaos. This is their idea of a good party.