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Summary:

A/B/O (predator/prey) AU: dragon!Zhongli (alpha) x Fox!Childe (omega) where everything is prey to a dragon

Childe, an assassin, went into the building for a mission, but the moment he's in he realizes something is wrong. How could they not tell Childe there was an alpha predator there when he accepted this mission? He is quickly set into an early heat and has to escape the building, avoiding security, while also fleeing from the alpha scent making slick gush out his hole and his legs wobble. An alpha scent that just gets stronger and stronger as it quickly approaches him.

Notes:

Okay, at least this is how I'm thinking of it based on some stuff I've read b4:
Think normal a/b/o where everyone can be an alpha, beta, or omega as a secondary gender. Now think like.... part animal dna type scenario where people are born with characteristics of animals. So as a fox Childe will display a fox tail and ears. (I've also seen where they can turn into the animal but it's like being naked? Idk, they don't do that in this hahaha) Also, a fox, like Childe, would be higher than like rabbits or rodents who they are natural predators of, just like with pheromones an alpha would be higher than an omega in influence. It's just alpha/omega but predator/prey influence but instead of horny it is a fear response. Therefore Zhongli, a dragon and top of the food chain because I said so lmao, creates a fear response in Childe but also he, as an alpha, creates a horny response in Childe. Also because I said so lmao
Class is dismissed, enjoy.

(See the end of the work for more notes.)

Work Text:

There were, admittedly, very few omega agents working for his organization. So in a lot of ways, Childe had let the many flaws presented by them towards his secondary gender go. They were risking a lot by letting him work for them, though he had more than proven himself in his brutality and efficiency in getting all of his assignments completed near perfectly. Being such a high class agent should come with some perks, such as TELLING HIM WHEN HIS TARGET WAS AN ALPHA PREDATOR!

Sure being a fox, Childe was a predator himself, but he could tell from the way his tail bristled despite himself that it was one higher up on the food chain than himself. Being an omega, he was more than aware of how he already felt his hole starting to leak. It must be a very dominant alpha, or the added stress of whoever it was being higher on the food chain than himself, because Childe was not due for a heat yet. It was soon, but not soon enough that he needed to take a break from work. He knew how to take care of himself.

He knew who his assassination target was, he had been shown a picture. It was the CEO of the company. An alpha for sure but he had been told he was a common lizard so he would not have even phased Childe with his pheromones. So either their information was wrong, which had never happened before, or there was a bodyguard that was setting Childe off. Either way, Childe knew he was a sitting duck if he didn't finish this quickly. The longer he smelled those pheromones, the quicker his heat would come and he would grow stupid on that scent. The scent of the earth in the early mornings and the spices of burning incense, like an olden ritual being performed in the woods just before the sun rose.

"What am I even thinking..." Childe hissed, trying to compose himself. He took a moment to let his ears and tail dissipate, something you socially do not show if you can help it unless it is with your mate. Decent again, and more concealed without the bright red beacons alerting of his position even if he were to hide, Childe sets to start looking for his target. He knows the basic floor plan of the building and has been informed of his target’s main places to frequent. In and out, he doesn’t even need to worry about cleanup. “The only real issue...” Childe mutters to himself as he peaks out the door, his eyelids fluttering for a moment as the rich scent is stronger in the main hallway. “-is whoever this amazing smelling bastard is...”

Staying in the shadows and close to doors, Childe lets his fox ears pop out for better hearing. He makes his way past footsteps and muffled talking from behind closed doors. Everyone is busy working. No one is suspecting the fox agent or what he is about to do. Still, he keeps an eye out for cameras as he works his way towards the top floor, where his target’s office is. He knows this isn’t actually an office building. They are an organization like his, who keep their real dealings under wraps. He doesn’t know the full information, because he doesn’t need it to complete the job. Not like he has much time to wander as he hears footsteps coming towards him. Childe backtracks to slip into a room he previously checked for sounds and found none. The room seems to be a storage closet with a lot of strangely labeled boxes and packages. He ignores them in favor of opening the vent and slipping into the duct. The footsteps grow louder and the doorknob starts to open. Childe is already gone, with the vent pulled back into place as neatly as possible. Unfortunately, a very trained eye noticed the screws missing. Childe is too far away to hear the man turn on a walkie and notify his boss of what he’s seen. Somewhere, a dragon rises for a hunt.

 

It is easier to make his way up now without being seen, but the air here is thicker with that scent. Childe pulls his mask over his face, but the pheromones easily penetrate through it. He opts to pull it back down instead to breathe easier. That growing pressure is making him nervous. The predator has been moving around the building, he can tell by the direction it is strongest having changed quite a few times already. A small voice in his head warned that it was getting dangerous and he needed to withdraw, but he could not go backwards where the scent was strongest. He had no choice but to keep moving towards his target and hope that he could figure it out on the way back.

Childe moved through the vents but it was so hard. His lungs were filled with the scent of burning incense as if they were lit inside his stomach and the smoke was pouring from his mouth. No matter where he went, or which way he turned, the smell kept getting stronger. It wasn’t actually in the vent system with him, so the predator had to be perfectly stalking him through the building. He tried to keep his head calm, but his heat was fully awakened already. His cock grew heavy and wet in his pants even as he tried to focus, the back of his pants soaked through by the time he reached the top floor. He practically fell out of the vent, his back painfully hitting the ground with a loud thud. His breath caught in his throat as his heat overtook him. The room was so full of that smell that had been following him this whole time. The fox stood no chance, as his heat overtook his rationality. His last coherent thought being that he had been fully played with and lost.

 

Zhongli followed the sweet smell of rain and flowers as it morphed into a deeper, sweeter scent. He smiled as he stood before the door to his office, his prey herded perfectly where he needed to be. He was no doubt choking on the overwhelming scent of a dragon within, the smell of the omega’s heat mixed with the salty taste of fear in the air. Casually, Zhongli opened the door and took in the beautiful sight before him.

 

Childe had felt so hot, overwhelmingly so. The room made him shrink in on himself but the heat in his core made him want to splay himself out. He thrashed around, until somehow he had discarded all of his clothes, leaving only his puffed out tail to cover him up as it curled in towards his belly. The source grew stronger and stronger until it was right outside the door. Childe’s breathing was labored and intermittent with guttural whines. His whole body shook as slick poured down his thighs. Instinctively, he had already gotten on all fours, pressing his cheek down to the floor as he raised his hips. His ears were flattened back and as the door opened, he bared his teeth. The man, the dragon, who saw him let out a low chuckle. Childe’s vision was blurry with tears, his mind foggy with both want and fear. His worst instincts that he tried to hide, forced out of him by this man. His target.

“You look so pretty like that, little fox. So sweet, so frightened. Are you worried I’m going to eat you?” The man smiled down at him, mouth opened just wide enough to show the sharp teeth. Childe could already imagine them biting down into his flesh as he was torn apart into a bloody pile of meat. A low sob escaped him, even as he growled. His eyes glazed over with want as his tongue lulled out from his keening pants. To the dragon, he probably sounded the fool. “How does it feel to take in my full pheromones?” Zhongli began to walk around the fox, examining the flushed and dripping man presenting for him. “There is a lot to expect out of this encounter. The moment I smelled you entering my domain, I knew you would be everything I imagined and more. It was a fun little game, my pretty fox, but I won. I think you’ll make a nice reward.”

Childe’s eyes never left the man, transfixed. He trembled, though still unable to move, as Zhongli leaned over and touched the tip of his finger to the base of Childe’s tail. A long, drawn out moan slipped out as it slowly dragged up, catched each and every vertebrae from Childe pressing up into it. The nail was sharp, and while it didn’t draw blood, Childe could feel it no doubt leaving an angry red line up his whole back. Zhongli’s other hand cupped the plump cheek, Childe’s tail curling around the arm instinctively, leaving Childe exposed. Just as Zhongli’s left hand massaged and rubbed at Childe’s scent gland in his neck, his right hand began to finger and play with his soaked and dripping hole. The combo leaving Childe to lose the rest of his sanity as he unabashedly moaned and pressed back into both touches. Zhongli let the omega fuck himself on the dragon’s fingers, happy to let the fox masturbate on him just to see him collapse onto the ground in his own seed.

Childe felt his hole throb, wanting to be filled. Wanting the alpha to fill him and fuck him until his thick load could put out the fire building inside him. Yet the alpha showed no move to fuck the omega, or that he was even effected at all. Instead, he pulled the fox from his nearly boneless pile and carried him back towards a separate room off of his office. The whole way, Childe choked and mewled as he nuzzled into Zhongli’s suit. He wanted more, to be able to smell more. “Hurts.”

“Soon. We can’t go too fast or you’ll be overwhelmed.” Zhongli chided, placing Childe onto the silken sheets of the bed. The back room held only a giant bed. “All predators like to play with their food a little bit. Will your let me taste you for a bit?” Childe whimpered as the dragon leaned down to kiss him. It was slow, like he really was savoring each and every taste within Childe’s mouth. Zhongli dragged his teeth over Childe’s lower lip, biting down on the plumpest part before letting it snap back from his fang. He leaned down, licking and sucking at Childe’s throat. Zhongli let his tongue press against his jugular, savoring the fast and erratic heartbeat. Leaning back, he also found pleasure in watching the fox’s blown out pupils as his pretty little prey sobbed in fear while also playing with his own hole. Zhongli let out his pheromones just to sit back and watch the omega fall apart. His eyes could see the subtle twitching of skin where his blood was pumping hard and fast, but he let them trail down to the real show before him.

Childe couldn’t handle the teasing, terrifying movements of the dragon on top of him. His fingers slipped inside of him, pleasure helping to ease his mind from the fear. He didn’t even notice the dragon watching him until he felt something hot pressing against his fingers. Childe’s eyes fluttered down before opening wide in horror. “Oh no, no wait please let me-” He tried to pull his hand away, already four fingers deep, but Zhongli just pushed in, trapping his fingers as his asshole tightened in retaliation of the horrific stretch. Childe sobbed, squirting himself despite the pain. Zhongli pressed fully in, leaning forward to nuzzle into Childe’s throat.

“Come now, silly boy. How are you already in pain? We’ve got to stretch you out fully to take all of me or your perfect little hole will be mutilated.”

“Too full. You’re already- already in.” Childe panted, flinching as Zhongli began to rock shallowly back and forth. “You already fit.”

“One, sure.”

“One?” Childe felt his heart stop as another hot, pulsing cock rubbed against his ass.

“Dragons have two, darling. So unless you want me to rip your stomach open, maybe you should get back to opening yourself up for me. Go on, I’ll be nice to such a precious boy and only use one for right now.” Without waiting, Zhongli leaned forward and began sucking on Childe’s neck again. His teeth digging in and chewing down towards his collarbone. The moment his fang pierced his skin, Childe began to thrash. He had nowhere to go, however. His hand was still caught in his own tight asshole, the other now held tight in Zhongli’s grip. He couldn’t pull away, as his hole clenched and resisted the drag of Zhongli’s cock. His own cock oozed, already gone limp from his fear instincts. It looked so pitiful that Zhongli reached down with his free hand to twirl his nail around the sensitive head. His nail teased his tip, dipping in to painfully block the opening so that it couldn’t leak anymore. Childe wailed, overwhelmed by all the aching, needy parts of his body awakening at once. And the whole time, Zhongli continued to bite and mar the milky skin on Childe’s neck, avoiding the area around his scent gland on purpose.

“You’re doing so good for me, pretty fox. You came to me with such a sweet smell, how could I resist? Was it fun pretending to find me while I went and brought you to my room? Did you have fun?” Childe shook his head, too overwhelmed to comprehend Zhongli as he talked. “Too bad, I’ve been waiting for you, my lovely mate. You’ve been sold out, and sold to me. You’ll be mine forever. Are you done stretching yourself now, love?” At some point, Childe had indeed been stretched enough to continue fingering himself despite Zhongli’s already thick cock dragging against his contracting walls. Zhongli reached down and forced Childe’s hand away, smiling at the desperate wails coming from the fox who tried to continue opening himself up. Lucky for his mate that he went into heat, it was making his body crave to be impregnated and therefore opening itself up with much greater ease than it should normally do. The dragon’s pheromones no doubt adding an urgency to expand his already gaping hole, Childe’s body down to his dna knowing he would be split open otherwise.

“Will you be my mate, love?” Childe was out of his mind, sharp teeth nibbling on Zhongli’s wrist to try and free his hand. “Do you want me to fill you up completely again?” Dazed blue eyes crawled up towards the dragon’s face, the pupil growing wide with a predator’s fascination. “Say you’ll be my mate, and I will fill you as you desire, little fox.” Zhongli brought Childe into a kiss, grinning at the desperate nips and whines he offered up to the dragon. Sweet, begging worship. “I won’t do it unless you agree.” Zhongli pulled out of the fox and sat back, waiting.

Childe tried to find words in the midst of the fog gripping his brain. He couldn’t think about anything beyond being filled to the brim by this alpha’s premium seed. Giving birth to his children and living as his mate, safe with such a strong alpha. Nevermind that he was strong enough to take down five regular alphas even experiencing heat. Nevermind that Childe’s instincts are screaming that this dragon will swallow him whole. He wants it. He wants it so bad. “Mate.” He practically purrs, sitting up to reach Zhongli again. His tongue drags up the dragon’s throat, sending a thrill through him as the predator lets him skim over his vulnerable point. Childe nibbles on his jugular, testing his reaction. His alpha does not flinch, only pats the foxes head in encouragement.

“It’s okay, love. Explore me until you are sure. There is nothing you can do that I wouldn’t accept.” Zhongli’s smile is so calm, so much unlike the feral grin at the height of his hunt. This softer version of the man felt like home to the fox, who was allowed to curl into his lap. Immediately, Zhongli’s arms were wrapped around him. “Just bare your neck and tell me to mate you, love.” Childe did just that, and Zhongli didn’t hesitate to claim his gift for himself. It cost him some precious secrets from his organization, but his perfect mate had been delivered to him as promised. So strong, his beautiful mate now so compliant in his arms. Zhongli kissed his little fox’s bruised lips, savoring the taste of blood between them. The fox and dragon blood deepened the sweet, burning taste of the kiss as Zhongli nudged his mate’s ass with his dicks. “I’m sorry if this hurts, my little fox.” Despite the pain, Childe practically melted with a deep sigh, finally feeling the stretch his body craved. “You’re taking me so well. Your body was made for this.”

Childe’s eyes rolled back as Zhongli slid both cocks inch by inch into him until he bottomed out. He felt his slick running down the curve of his ass, his hole unable to keep anything inside with how wide it was pulled open. It drooled out, coating Zhongli’s twin cocks better than a whole bottle of lube could have done. “Your body is doing so good, love. Slowly, just like that.” He let Childe push and thrust against him, his omega easing himself at his own pace. “Such a good boy, working me into your womb.” Childe moaned, hands digging into the blankets where he was anchoring himself. He felt both tips lightly grazing against his womb’s opening, already descended and waiting to be filled and impregnated. “You’re so pretty, little fox. You’re body is so perfect for me. The whole reason I’m here is just for you. My balls, so heavy with seed just to fill you up and pump that perfect womb of yours until you’re round with my babies.” Childe softly keened as one tip breached into him, Zhongli slowly taking over the pace as he pushed the other in as well. “You’re so beautiful, my mate, and you will be the most beautiful mother when I’m done with you. So pretty. So perfect.” And the moment he felt Childe fully melt into the praise, not noticing how Zhongli had already checked to make sure his mate was nicely prepared for him, Zhongli snapped his hip forward.

Childe let out a silent scream as the heads of both of Zhongli’s cocks dug into his womb, working even his insides open. The dragon watched his mate fall apart again and again as he finally started his brutal pace. Semen coated the fox’s abs from the sheer volume leaking and squirting from his mate as the dragon brought him to orgasm again and again. His heat practically kept him hard and on the edge of orgasm, like his whole body was pushing him into overstimulation. Zhongli just focused on keeping his mate thrashing in ecstasy while he dug as deep as he could with every thrust. He was searching for the best angle, wanting his mate to be comfortable while also having the perfect position to make sure as much of his seed as possible made it into that womb. He would have his mate pregnant by the end of this, tied to him forever.

Soon enough, as Zhongli predicted, he felt the base of his cock burn and swell, somehow miraculously plugging up Childe’s stretched out fuck hole. His mate had long already passed out, his energy gone from his constant orgasms and the stress he went through to get into Zhongli’s arms. The dragon let his little fox’s back rest against his chest, mostly so that he could run his hand over the growing roundness of his abdomen. His stomach swelling from the amount of seed filling him. Zhongli hummed in contentment, already planning to knot his mate two more times after this until he looked as pregnant as Zhongli wanted him. Dragons were very fertile creatures, and foxes were known to have multiple kids at once. He had heard his mate desired a big family, when negotiations for this were in place, and Zhongli had already promised to give him everything he wanted and more.

Notes:

Fox or Dragon babies? Call it now. Pretty sure it'll be both by the end, with how often these guys are gonna papapapa lmao
Do I have a Childe creampie kink? *stares into distance* Am I the problem? Or is the problem how pretty he looks stuffed and overflowing with cum? The true questions. I lowkey forgot he was there to kill Zhongli at first though by the end Childe sure forgot so it's all good.

This was so late because I wasn't really happy with it, I'm still not super happy with it but I can't put my finger on what it is I want it to be instead so I'm posting it anyways. A fucked up cake is still edible even if it don't look as pretty as you wanted it to be. So I'll live with this haha Not to mention, I've been busy and haven't been at home at all yesterday, so a three post update will happen today. Oh well, time is an illusion anyways hahaha

Day 26 is a non-horny post with broken ankles. Short fic for a brain rest. Gotta rest the horny brain (jk I've already come up with like 5 other non-whumptober fanfics involving Childe just because of how much I've been writing with him recently, and they are all horrifically horny and a a couple are quite fucked up huhuhu)

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