Prompt: Shirou Emiya just wanted to save a village from Qin Shi Huang's attempts to purge confucianism. Why did Chaldea insist on sending him with Koyanskaya of all people? She was supposed to be their enemy! He could deal with a lot of things... but her? The girl would not stop teasing him about his "sword". When she brings up Rin, something within him finally snaps and he shows her just how impressive his "sword" really is. The good news? Koyanskaya is no longer teasing his inadequacy. The bad news? She was now telling every one that Shirou was the greatest man to ever live, and telling every man to let Shirou fuck their wives. Shirou honestly thought that was more annoying than her teasing.
Tags: Maledom, mind break, dubcon, rough sex, exhibitionism?
There are not explicit spoilers for FGO JP, but there are a few vague allusions to things that have been hinted at FGO NA and are only confirmed in JP regarding the Bleached Earth Phenomena. I don't really think it counts as spoilers, canon has already hinted at things just as much on NA, but a few of Koyanskaya's references will probably be read that way by people who already know things. Up to you if you want to chance it. If you want to wait till Ordeal Call Prologue to read it, everything alluded to is confirmed by then.
And more explicit spoilers up to Tunguska and for UBW I guess.
"You're taking Koyanska with you," Ritsuka ordered.
"Huh?" Koyanskaya protested. "I'm here for you to repay my debt by procuring an antidote to the poison. I have no reason to go with him on a fool's endeavor."
"You are going with Shirou," Ritsuka repeated, her arms stubbornly crossed in front of her chest.
"I'll be fine," Shirou argued. "The Alter Ego can stay with you."
Koyanskaya nodded eagerly. "Exactly. I am here to mix the antidote for Ritsuka, no more, if our wannabe apostle doesn't want me there, then there is zero reason for me to go with him. He's obviously not man enough to handle me anyways, there's a reason he hasn't summoned anyone."
Shirou grit his teeth. "If I could summon another servant then it would certainly not be you." It would be Saber, she was the only servant he could ever summon. That was half the reason why Shirou had leapt at the opportunity to join Chaldea under the new regime, when Rin told him he should apply. Director Musik was looking for new applicants, and she had shoved him at the opportunity. A chance to join the organization that saved the world, and help a real hero do it again. And it was a guarantee that he got reunited with Saber given the catalyst that he had engraved in his very soul.
"Shirou has experience as a Master, and has proven his worth in the field," Mash explained diplomatically. "Just because he's not able to utilize the shield for the summoning system, that does not mean that he is not more than capable."
"Oh is that why? I could've sworn that I'd seen someone else summon a servant without that shield… Let's see there's poor wittle Kadoc, Ophelia, Peperocino, Kirschtaria, Beryl, and well… I guess the other two don't count."
"Koyanskaya," Ritsuka said firmly.
"It's almost as if the issue is him, not the system!" Koyanskaya cheered with mock horror. "No… it has to be that he doesn't have a shield!"
"Shirou has already shown that he has master compatibility," Mash explained. "He fought in a previous grail war."
"A fluke," Koyanskaya scoffed without missing a beat. "His servant was no doubt the weakest one."
"Saber was not weak," Shirou growled. She literally had won the grail war… Or at least he had thought that, apparently Marisbury had technically won by claiming a wish from the greater grail after Saber had destroyed the lesser and they assumed the battle was done.
"Oh! You were so incompetent as a Master that your servant didn't even trust you enough to share their true name? I read through your files when you applied to Chaldea, your most impressive feat was that Tohsaka took pity on you."
Her name is Artoria Pendragon, the legendary King of Knights, you stupid bitch. But Shirou didn't say that out loud, he didn't have to explain that he wasn't useless to an enemy. She would find out the hard way when he inevitably had to save Chaldea from her treachery once again.
"Koyanskaya. Stop," Ritsuka repeated. Koyanskaya pouted at her in response but didn't say anything. "You are going with Shirou."
"Do we actually need to send them out at all? Perhaps, we should just stick together. With Ritsuka poisoned, and after sending off Mordred and Nezha to escort the villagers already… Is it really a wise idea to divide our remaining fighting force before we battle the emperor?" Goredolf questioned, trying to diffuse the situation.
"I'm going," Shirou insisted adamantly. "I won't let people die when I can stop it."
"Maybe there isn't actually any danger!" Goredolf roared. "I do not think it's wise to send Emiya out on an expedition to a random village! We should be prioritizing the safety of Proper Human History! Of Chaldea! Endangering our members on-"
"There likely is in fact danger," Sherlock Holmes cut the director off. "Given the track record of Qin Shi Huang; Red Hare's joyous explanation that carrots are the greatest food in the world and how they all need to try them to the entire population of nearly a thousand, will in fact count as spreading confucianism. And we know how the Emperor responds to that. The village is certainly in mortal peril, if we do nothing to aid them."
"I'm going," Shirou repeated. There wasn't another option. "We can't abandon them to die." Not again.
"No one is suggesting we do that, Mr. Emiya," Holmes was quick to clarify. "I agree that it has to be you who goes, given our current situation. However, I also will acknowledge the Director's point, we can not afford to risk your life by sending you in alone."
"I can handle-"
"I have no doubt that you can handle whatever puppets or tiger tanks the emperor deploys. You might even be able to handle Qin Liangyu with some luck. But Qin Shi Huang is no fool, and is capable of observing our every move, even if he can't hear us. He will recognize your importance to us, and will judge you as a worthwhile hostage to leverage against us- and cripple our operations. He will send Xiang Yu and Yu Mei-Ren if he has to. And you will not win against them on your own."
Shirou thought his odds were better on his own, then he didn't have to worry about not revealing the fact that he had a Reality Marble and earning himself a sealing designation. So far he had just limited himself to Kanshou and Bakuya along with some more basic mystic codes and standard weapons. If Ritsuka had ever actually lost, Shirou would have pulled out all the stops and forgone the totality of his secrets, but Ritsuka hadn't. She had handled every situation with minimal backup from Shirou, so his reality marble was still his secret trump card that he had only used once while isolated in Russia. And not one he would be able to use without limits if he had a servant or even worse Koyanskaya with him. His chances of surviving after battling a being adjacent to a True Ancestor were genuinely higher without assistance.
"The tactical decision is to accept the village as collateral damage-" Holmes tried.
"Absolutely not," Shirou cut him off. Ritsuka nodded in agreement.
"We won't leave anyone behind," Mash affirmed.
"You didn't let me finish. As a hero of justice , I can not accept that price. We might be forced to commit evil, but that does not mean we can not neglect doing the right thing and turn our backs on suffering. If we are not willing to accept collateral damage, then we must take precautions. Emiya is too valuable to send in on his own."
"I-"
"Rituska is correct, and Koyanskaya will accompany him, it's the only option available to us."
"I won't," Koyanskaya was persistent. Shirou nodded. He did not want to have to watch his back every minute with that fox as his ally. "That was not the terms of our contract."
"Your terms were to ensure that an antidote was procured for both Ritsuka and Director Goredolf. If Emiya is captured, you will not be able to complete your task, will you?"
Koyanskaya glared at the detective. "I can't stand men who have nothing more to offer than their minds." Koyanskaya's eyes shifted from Holmes to Shirou. "Luckily for me, you seem to have nothing to offer with your mind! You'll take good care of me, won't you, Shirou?" She purred.
Shirou's head throbbed as he tried to hold back a groan.
Koyanskaya draped herself around Shirou's shoulders, her lips right next to his ear. That woman was going to be the death of him. The enemies they had fought so far had been as trivial as they could have possibly hoped. Shirou merely had to wave his hand to project a wall of ordinary swords and banish them at his enemies.
And Koyanskaya had really enjoyed watching him while doing absolutely nothing to help. Everytime he projected a sword, the fox would tease him about being a little too into swords. Her innuendo was constant, and he wasn't sure when the last time she hadn't been touching him was. Even in combat she usually was, the girl had evidently decided that he could do it with her handicapping him. She was correct, he was more than capable.
Koyanskaya had been forced to go with Shirou, to both of their frustration, but Koyanskaya responded to that situation very differently than Shirou. He wanted nothing to do with her, and was content to just ignore her and focus on the lives they were racing to save. Koyanskaya instead thought that if she was going to be forced to accompany him, she was going to have a good time with it, and with him the only person there for her to tease, he got the full brunt of all of it. Koyanskaya had sneaked into his cot and cuddled against him as he slept last night, just to see him flustered when he woke up. All for entertainment .
So Shirou had gotten used to the feeling of her unreasonably large breasts pushing into her back, and her comments about how his over-reliance on swords was him compensating for something. He had gotten used to her accusing him of wanting to pin her down and rape her for some reason. He knew what to expect from the devil, and had stopped being fazed by her temptations. Her hot breath tickled his ear, but Shirou refused to flinch.
"You have a reality marble," Koyanskaya purred in his ear.
Shirou could not stop himself from flinching and ripping himself away from her. What the fuck!?
She grinned at him like a cat who just caught the canary.
"I have what?" Shirou tried to play the idiot as Rin had instructed him all those years ago. "I don't know what you are talking about." Very few knew enough about reality marbles to continue to push the idea when you make them second guess themselves.
"It's bad business to lie, Shirou," Koyanskaya said with false cheer. "You have a reality marble. That is where your swords come from."
"I do not know what you are talking about." How the fuck had she figured it out? He had used less of his reality marble with Koyanskaya there than he had in prior Lostbelts or even in this one before they picked Koyanskaya up! He hadn't even used his aria once here! He was only using regular swords!
"What does it say about you if your inner world is just a bunch of swords? Clearly you are overcompensating for how lacking you are in other areas." Koyanskaya switched back to teasing without missing a beat, twirling around in front of him now.
"Koyanskaya," Shirou growled. "I don't know what you are going on about this time, but we should focus. We are almost to the village."
Koyanskaya once again ignored him, he wasn't sure that there was a single time she had ever listened to one of his requests. Okay, actually he was sure. She never had. "Oh… you haven't told Chaldea that's why you are so defensive about this! Wow! I can't wait to see the look of betrayal on Mash's face when I tell her. They are going to hate you!" Her eyes lit up with glee. "Unless…"
Shirou sighed in defeat. "How did you know?"
Koyanskaya's grin stretched wider. "Those swords you just projected, despite being the exact same katana, all were different. One of them had a scratch on the side, another had a more worn down handle, you get the idea. Any mage who projects something, aside from it being of lesser quality, they follow one blueprint of the ideal version and the imperfections are a result of a failed spell, each sword having unique flaws, without any degradation in the quality of the projection, is impossible through normal magecraft."
"That's bullshit," Shirou blurted out before he could stop himself. "How does that suggest a reality marble of all things?"
"She leaned in towards Shirou, forcing his eyes to her semi-exposed breasts. "Let's just say that this old fox has seen more than a few reality marbles before… so she has a pretty good idea of how exactly they work and what their limitations are. And you have one!"
Shirou pursed his lips at the explanation that felt like it was missing… something, but he could not identify what, and ultimately it didn't matter. "That was really all it took? I suppose I have to… prepare to tell them now." They probably wouldn't immediately brand him with a sealing designation at least, but they would also be held in contempt of the law if they tried to keep the information hidden after humanity was restored… His life would end once he saved everyone. It was only fitting.
Oh fuck, was Rin going to get in trouble for hiding that he had a reality marble now that he was exposed? It would be obvious to everyone that she knew and was deliberately hiding the information. Would Zelretch protect her? He would, probably? That was if they reversed whatever the bleached earth was and found a way to bring her back to life.
"Well that, and the fact that your circuits activated when you mumbled, I am the bone of my sword , last night in your sleep." She smirked at Shirou. "What kind of aria is that anyways? Are you declaring that you have a boner?" She actually winked at him.
"Koyanskaya," Shirou growled, clearly not in the mood for her usual teasing. Not after their enemy just revealed they knew his secret weapon and the thing that would get him a sealing designation.
"Oh you don't want to talk about your boner?" She pushed onwards without missing a beat. "Let's talk about something else you mumbled in your sleep… well, I guess mumbled isn't the right term, more of a moan… What was her name again? Rin ? Did little Shirou have a wet dream about his girlfriend?"
"Shut up," Shirou snapped.
"Oh my!" Her lips made an O in mock surprise. "It seems I've touched a nerve, did Miss Tohsaka break up with you? Probably decided she needed a real man to fuck her and not a sword obsessed weirdo with alien common sense."
"I said shut up," Shirou roared.
"Oh I'm right! She did break up with you! How tragic! My deepest condolences." She had broken up with him, but not for that fucking reason, she could not be further from the truth.
"You dumb bitch!" Shirou screamed. "She's fucking dead! Because of you and your Foreign God! You fucking murdered her, so don't you dare say her name again."
Koyanskaya laughed uproariously. "Oh right, the Bleached Earth is said to have killed her, my bad, I kind of forgot in having so much fun… But I can't help but notice that you didn't deny that Rin broke up with you."
"I told you to shut your fucking mouth."
She giggled at him. "Hmmm… I wonder who did Rin leave you for? Perhaps she discovered the joys of black cock!" She scrutinized his face and then shook her head. She took a step closer to Shirou. "Was it your best friend she cheated on you with… no, that's not it either. An old Lord to try to gain power? She did give the impression of a power-hungry whore when I saw her with Goredolf that one time..."
Shirou took a step towards Koyanskaya without thinking. "If you say her name one more fucking time, I…" A sword materialized above his shoulder and shot into the tree directly behind Koyanskaya.
Koyanskaya stuck out her tongue at him. "No wonder Rin left you if that's the only kind of sword you know how to use."
Shirou's hand shot out and grabbed a fistful of her silky hair, yanking her head back to expose her throat. She gasped in shock, her eyes going wide.
"I said," he whispered, his voice low and filled with anger, "not to mention her fucking name."
Her eyes narrowed and she smirked. "Or what, Shirou? Will you use that pathetic excuse of a sword on me?"
Shirou felt his anger boil over, and with a sudden surge of reinforced strength, he shoved Koyanskaya up against a tree. He was done with her fucking shit. Her body collided with the bark with a thud, the smug grin on her face faltering for the briefest of moments. He stepped closer, pinning her in place with his body, the heat of his breath on her neck. She felt his hand tighten in her hair, the painful tug sending shivers down her spine.
"You want to know what I can do with this?" he whispered, his free hand sliding down to grip the fabric of her dress, pressing into her stomach and then lower, to the juncture of her thighs. "I'll show you," he said, his voice dark and filled with promise.
Koyanskaya's heart raced, her breathing shallow. She had pushed him too far, but the thrill of it all made her pulse quicken with excitement. She had wanted to get a reaction out of him, to make him feel something, and she had certainly succeeded.
He yanked her dress up, revealing her lace panties. He slammed his hand against the tree next to her, causing the branches to shake. "I've had enough of your games, your teasing, and your fucking mouth," Shirou snarled, his grip on her hair tightening. "You think you can just say whatever you want about Rin?"
Koyanskaya's eyes glinted with challenge as she met his gaze. "Is that all you've got, Emiya?" she taunted, her voice a mix of pain and excitement. "A little hair-pulling and some empty threats?"
Shirou's eyes narrowed, and without another word, he ripped her panties away, exposing her bare, wet pussy to the cool air. He reached down and slammed two fingers into her, making her gasp and squirm against the tree. "You want to play games?" he growled, his voice thick with lust.
Before she could respond, his lips crashed down on hers, a brutal kiss that claimed her mouth with a ferocity that took her by surprise. Her teeth clashed against his as she struggled to regain the upper hand, but Shirou wasn't about to let her. His tongue forced its way into her mouth, tangling with hers in a dance of dominance. He tasted her, savored her, and she tasted of sweet challenge. The smell of her, the softness of her skin, the warmth of her body against his—it was intoxicating, and it only served to fuel his anger and desire.
Koyanskaya's hands shot up to his chest, pushing against him, but she was no match for his strength. He grabbed one of her wrists and pinned it against the tree above her head, his other hand still fisting her hair, forcing her to look at him. "You think you know everything, don't you?" he snarled, his amber eyes flashing with rage. "But you know nothing about me or Rin. Nothing at all. And I'm going to make sure you regret ever saying her name. You fucking murdered her! Bitch."
Her eyes narrowed, and she smirked around his fingers. "Oh, is that what you think happened?" she murmured, her voice dripping with sarcasm. "You think you can scare me with that tiny little cock of yours?"
Shirou's hand let go of her hair and found the zipper of his pants, and with a quick tug, his erection sprang free. It was anything but tiny—it was massive, thick, and pulsing with need. 14" long and unbelievably thick. Her eyes widened in shock as she took in the full length of him, and for the first time, she looked genuinely surprised. "Well, well, well," she breathed. "Looks like someone's been holding out on me. Still, there is no doubt that you would be incapable of using it if Rin left you."
Ignoring her taunts, Shirou grabbed her hips and spun her around, forcing her cheek against the tree bark. He stepped back, and before she could react, he pulled her towards him, the head of his massive cock pressing against her ass. He didn't bother with foreplay or lubricant; his anger had taken the place of any need for gentleness. With one swift, powerful thrust, he penetrated her, the sound of her surprised cry echoing through the woods.
Koyanskaya's body tensed as she was filled with his unyielding length, but she didn't have time to process the pain before he began to move. He pumped into her without mercy, his hips slamming against her firmly, the smack of skin on skin punctuating the night air. Each thrust was a declaration of his dominance, his anger driving him deeper and deeper, her tight ass struggling to accommodate his size.
"Is this what you wanted?" she panted out, her voice strained as she attempted to keep up with his relentless pace. "To fuck me like a mindless beast?"
"Is that what you think you're doing?" she spat, trying to sound unaffected by the intense pleasure that was already building within her. "Your Rin's probably laughing at you from the grave—"
Her words were cut off as Shirou reached around and slapped her ass with all his might. The sound was like a gunshot, echoing through the night. "Shut up," he growled, his eyes flashing with rage. "You know nothing about Rin."
With a violent yank, Shirou grabbed her tail, pulling it hard to the side. Her eyes went wide and she let out a surprised moan. "You're not going to say her name again," he said, his teeth clenched.
"Oh, is that your best?" she taunted, her voice breathless as she pushed back against him. "You think you can intimidate me with a little tail-pulling?"
Shirou didn't bother to respond with words. Instead, he pulled her tail harder, using it to guide her hips as he continued to fuck her ass relentlessly. The pleasure was intense, the pain equally exquisite, and she could feel her body giving in to his demands despite her protests. He was so deep inside her, filling her completely, and with every thrust, she could feel her walls stretching and clenching around him.
Her body began to shake as an orgasm built within her, and she couldn't hold it back. "Shirou!" she screamed, her voice filled with both pleasure and disbelief. "Is thaaaat all you've gooooooot?" Her legs trembled, and she leaned into the tree for support, her tail shaking in his grip as it tried to wave back and forth.
Shirou's pace didn't falter. If anything, it grew more intense as he felt her tighten around him. He knew she was close, and the idea of her getting off on his anger only made him more aggressive. He reached down and grabbed her by the hair again, pulling her head back sharply. "I'm not done with you," he growled, his voice guttural.
He slammed into her ass again, and again, the sound of their bodies colliding becoming a symphony of anger and lust. Her moans grew louder, and she began to claw at the tree bark in an effort to find purchase. Her body was his to use, and he was going to make sure she knew it. His hand moved from her hair to her breasts, squeezing and mauling them with an unbridled fervor that she had never experienced before. Her nipples hardened under his touch, sending bolts of pleasure through her body that mingled with the pain of his rough handling.
"You're going to cum for me," he said, his voice a demand. "You're going to cum until you can't remember your own name."
Koyanskaya felt another orgasm building, her ass clenching around his thick shaft. "Please, as if a little boy like you can me cum," she panted, trying to maintain her facade of control despite her body's betrayal.
Her eyes rolled back in her head as she felt a particularly intense wave of pleasure. "Ahh, Shirou... you're so... so... inadequate," she moaned, her voice strained with effort.
He chuckled darkly. "Inadequate?" He slammed into her even harder, pushing her against the tree until the bark dug into her skin. "Let's see if you still feel that way after this."
With a final, powerful thrust, he sent her over the edge. Her body convulsed around him, her moans turning into a scream of ecstasy. "Shirou! Shirou! Shirou!" she chanted, her voice echoing through the woods. Her orgasm was intense, a crescendo of pleasure that seemed to go on forever.
"Hehehe," Koyanskaya chuckled. "Just kidding! As if you could make me scream like that."
Shirou's only response was a grunt of effort as he continued to pound her ass with all his might, his large cock stretching her to the limits of her endurance. Despite her words, her body was already beginning to betray her. Her inner muscles clenched around him, desperately trying to milk every ounce of pleasure she could from his brutal assault. He wasn't even in her cunt!
"Is that all you've got, Emiya?" she managed to gasp out between moans. "Pathetic."
But as he slammed into her again and again, her voice grew less taunting and more desperate. She could feel another orgasm building, the pleasure coiling in her stomach like a serpent waiting to strike. "Fuck... fuck... you're... you're not..."
Her words trailed off as another orgasm crashed over her, making her body spasm and tighten around him. Shirou felt the vise-like grip of her ass on his cock, the sensation sending a shiver of pleasure through his own body.
"Shirou!" she screamed, her voice hoarse from the previous climax. "Fuck me harder! Make me yours!"
He obliged, his strokes growing even more forceful, his hands roaming over her body like a conqueror claiming his prize. He squeezed and pulled at her breasts, twisted her nipples until she yelped, and yanked her hair so hard that tears sprang to her eyes.
"Oh, fuck, yes!" she moaned, her voice a desperate plea. "Harder, Shirou, harder! Don't... don't stop!"
The next orgasm was the most intense yet. It took her completely by surprise, ripping through her like a bolt of lightning. Her body bucked against his, her ass slapping against his thighs as she writhed in ecstasy.
"Is that all you've got?" she gasped, trying to regain her composure. "I've had better from a fucking toothbrush!"
Shirou's eyes narrowed, his grip on her hair tightening until she let out a whine. He slammed into her one last time, his cock hitting her deepest spot, and she shattered again without anything touching her pussy for even a second.
"Shi... Shi... Shirou!" she screamed, her body trembling uncontrollably.
Finally, he reached his peak. With a roar of triumph, he emptied himself into her, filling her to the brim with his cum. Her ass spasmed around him, milking every last drop from his cock, and she collapsed against the tree, panting and trembling. "Is that it? No wonder Rin left you, if you just cum in a girl's ass, and call it a day." Shirou's cum ran down her leg, the sticky white fluid leaking out onto the grass.
Shirou stepped back, his chest heaving, his cock still just as erect despite the gallon of cum he had just pumped into her. "I told you not to mention Rin!" he snarled, his eyes still burning with anger.
Koyanskaya looked over her shoulder, a smug smile playing on her lips, despite the pain etched on her face. "And I told you to make me. Is that all you've got, Emiya? You're nothing but a one-trick pony."
With a growl, Shirou grabbed her by the shoulders and tackled her to the ground. The impact knocked the air from her lungs, and she looked up at him in surprise, her eyes wide with a mix of excitement and fear. He straddled her, his massive cock still rock-hard and sticky from his cum that had pooled in her ass.
"You think you can handle this?" he challenged, grabbing her fox ears in his strong grip. He didn't wait for an answer before thrusting into her again, this time filling her pussy with his thick length. She let out a high-pitched squeal, her body writhing beneath his.
"I'll let you in on a secret because you asked so nicely," Shirou sneered. "Rin and I broke up because she thought I was too good in bed. It got to the point where she was left so disoriented that she couldn't perform her duties in the clocktower."
Koyanskaya swallowed nervously before forcing a laugh. "Hehehehehe, Is that what she told you? She obviously just didn't want to hurt your feelings by telling you that you were inadequate. I've seen virgins more skilled than you," she lied. A loud moan escaped her lips at the end, undercutting her words.
Shirou's response was to increase the intensity of his thrusts, burying himself to the hilt in her soaking wet pussy. His grip on her fox ears tightened, using them as handles to control her body as he fucked her with a brutal rhythm that seemed to have no end. Her breasts bounced with each impact, and she could feel her orgasm building again, much to her annoyance. "You're just a tool," she managed to gasp out between panted breaths. "A sword with no skill to wield it."
"Is that so?" Shirou replied, his voice strained but determined. He leaned down, his teeth grazing her neck as he whispered, "We'll see how much of a tool I am when I make you scream my name again." His thrusts grew even more intense, his hips moving with the precision and power of a well-oiled machine.
Her body responded in kind, her walls tightening around him as she climaxed for what felt like the hundredth time. "Ah, Shirou! Shirou! Shirou!" she screamed, her voice echoing through the trees. Her nails dug into the dirt as she arched her back, her pussy clenching down on his cock as wave after wave of pleasure washed over her. "You're so..."
"Say it," he ordered, his voice low and menacing. "Admit that I'm better than a toothbrush."
Koyanskaya's eyes rolled back in her head as she tried to form words, but all that came out was a strangled cry. "Ah... ah... Shirou... Shirou... you're... you're... slightly better than a toooooothbruuuuuush!" Her words slurred at the end as another orgasm washed over her.
Shirou growled at her attitude. His hands moved from her ears to her legs, holding her in place as he slammed into her even harder. Her cries grew louder, her body shaking beneath his.
"Look at you," he taunted. "You're begging for it like the slut you are."
Her eyes snapped open, and she glared up at him. "I'm not some two-bit slut," she spat. "I'm a beast!"
Shirou leaned down and captured her mouth in a bruising kiss.
"I'm going to fuck you until you forget how to talk," he murmured against her lips before pulling out and slamming back in, his hips moving in a relentless rhythm that had her body writhing beneath him.
Koyanskaya's eyes fluttered shut, and she bit her bottom lip, trying to hold back the screams that threatened to escape. But she couldn't. With every thrust, she felt herself losing control, her body responding to his with a hunger she hadn't felt in a long time. "Inadequate," she managed to whisper, her voice barely above a moan.
Shirou's eyes darkened, and he pulled her closer, his cock driving into her like a piston. "Keep talking," he ground out, his teeth sinking into her earlobe.
Her nails scraped down his back as she bucked her hips to meet him, her orgasms coming faster and harder. "You're... you're just... a... a...," she trailed off, unable to form the words she wanted to say.
Shirou's grip on her ears tightened, and he pulled her body closer, grinding his pelvis against hers with a savagery that sent a fresh wave of pleasure crashing through her. "Keep talking," he murmured, his breath hot against her skin.
"Fuck... fuck you, Emiya," she gritted out, her voice strained. "You're not... not... ahh... not..."
He smirked, his thrusts never faltering. "Not what?"
Her body trembled with the effort of speaking, "You... you're the... best," she gasped out.
The words seemed to fuel Shirou's fury, and his hips moved even faster, his cock pistoning in and out of her with a brutal efficiency that left her gasping for air. She could feel her orgasm building again, and she tried to fight it, to cling to some shred of dignity. But it was no use. His cock was too perfect, too overwhelming, and she was too sensitive from the previous rounds.
"Again," he demanded, his teeth sinking into her neck.
Koyanskaya's eyes rolled back in her head as she gave in to the pleasure, her body arching off the ground as she came with a scream that seemed to shake the very foundation of the world. "Shirou! Yes! Yes!" she cried out, her voice echoing through the clearing.
Shirou didn't stop, didn't even slow down. He just fucked her harder, his hips slamming into her with a ferocity that left her seeing stars. Her pussy was a wet mess, slick with her juices and his cum, but she didn't care. She was lost in the storm of pleasure that he was wringing from her body, her mind a whirlwind of sensation.
"Again," he growled, his grip on her hips tightening.
"I... I can't," she panted, but her body betrayed her, her pussy spasming around his cock.
"Yes, you can," he said, his voice a dark promise.
And she did. Again. And again. Each orgasm more intense than the last, each one stripping away another layer of her resistance until she was nothing but a quivering mass of pleasure beneath him. Her taunts had turned to pleas, and now, to the sweetest words of praise he had ever heard.
"Shirou! You're the greatest! The best! Oh, fuck, I've never felt anything like this! Please, don't stop!" she screamed, her voice hoarse from her repeated cries of ecstasy.
He didn't.
Shirou's cock continued to claim her, his strokes long and deep, his hips grinding into hers in a primal mating press that seemed to go on forever. Her body was a symphony of sensation, each thrust bringing forth a crescendo of pleasure that made her feel as if she was going to shatter into a million pieces. And yet she didn't. Instead, she clung to him, her legs wrapped around his waist, her heels digging into his back as she tried to pull him in deeper, to get more of that delicious friction that was driving her mad.
Her cries grew wilder, more feral, as she lost herself in the rhythm of their bodies. "Fuck me, Shirou! Fuck me like you own me!" she screamed, her voice hoarse from the sheer volume of her pleasure. "Because you dooooo!"
Her nails dug into his back, leaving trails of red against his skin, but he didn't flinch. Instead, he reveled in the pain, using it to fuel his own pleasure as he pushed her closer and closer to the edge of sanity with every stroke. "Oh, yes, yes, yes!" she chanted, her voice rising and falling with the intensity of her orgasms.
"You're mine," he growled, his teeth sinking into her shoulder. "Say it. Say it loud enough for the whole fucking forest to hear. Abandon your fucking God for this."
"Yesssss," she hissed, her eyes glazed over with lust. "I'm yours. The best cock, the strongest man, the most skilled lover. I'm yours, Shirou. Yours to take whenever you want."
The words were like a drug to him, and he took them greedily, his cock swelling even further as he drove into her. He could feel his own orgasm approaching, the pressure building in his balls, demanding release. But he held back, wanting to hear more, wanting to feel her come apart around him one more time.
"Again," he demanded, his voice a low rumble. "Come for me again, fox."
And she did. Her body arched off the ground, her back bowing like a drawn bow as she came with a scream that seemed to shake the very heavens. "Shi-rou," she moaned, drawing out his name like a sweet caress. "I thought I was supposed to be the beast of taming!"
Her pussy tightened around him, and he couldn't hold back any longer. With a roar, he released his seed, filling her to the brim with his hot cum. He pulled out, and stood up, watching as the rest of his orgasm painted her chest and face with thick ropes of semen.
"Aaaahh, Shirou...," she moaned, her voice a symphony of pleasure, her eyes shining with a mix of satisfaction and greed for more.
Shirou took a step back, and the cum began to run down her body in rivulets, coating her cheeks, her neck, and dripping onto her heaving breasts. He felt a twisted sense of triumph as he watched her revel in the mess he had made of her, her tongue darting out to lick a droplet from her lips.
"Mm, so much," she murmured, her eyes glazed over. "Your seed is divine, like nothing I've ever tasted." Koyanskaya sat up, her eyes glinting with mischief as she licked her lips, swollen from his kisses. She reached down and grasped his still-hard cock, her hand looking delicate around its thickness. "Let me ride you, Shirou," she purred, "I want you to see what your loyal foxxy wife can do."
"You are not my wife, Koyanskaya," Shirou growled. He grabbed her by the shoulders and flipped her onto her stomach, her tail flicking in the air. "And I'm not done with you yet." He slammed his cock back into her, her cheeks still sticky with their combined juices. The sound of skin slapping against skin filled the air as he began to pound her mercilessly from behind, her breasts bouncing with every thrust.
"Shirou, oh gods, your cock is... it's..." she tried to form coherent words, but the pleasure was too intense. All she could do was moan and whimper, her body shuddering with each impact. He reached down and grabbed her hair, yanking her head back.
"Y-you're" she stuttered, "so much better... so much bigger, so much... harder... oh, fuck, I'm going to cum again," she moaned, her voice muffled by the grass beneath her face as she felt the pressure build once more.
Shirou's teeth clenched as he listened to her sweet, desperate words. Her body was his playground, and he was going to make sure she never forgot this moment. He pulled almost all the way out before slamming back into her, the sound of his hips meeting her ass echoing through the clearing. Her moan was music to his ears, and he began to piston into her with a newfound ferocity.
"Your... your cock," she panted, her voice muffled by the dirt beneath her. "It's so... so massive. I can feel you in every part of me."
"That's right," he grunted, his hands squeezing her hips tightly. "You're going to remember this for the rest of your fucking life, and you're going to stop being such a bitch because of it. ."
Her eyes rolled back in her head as she tried to process the sensation. Her body was no stranger to pleasure, but this was something else entirely. It was raw, primal, and it was all she could do to hang on.
"Sh-Shirou... you're... you're too much," she gasped. "I... I'm going to... ahh!"
He felt her pussy clamp down on him once again, and he knew she was close. But he wasn't going to let her get away that easily. He reached around and pinched her clit, eliciting a high-pitched squeal from her lips.
Then suddenly it stopped as Shirou pulled out of her. "Why did you fucking stop?" Koyanskaya whined. "I was just about to cum on your divine cock!"
"Shhhh!" Shirou snapped. "Look up, you dumb fox."
Shirou's eyes never drifted from the sky overhead, where there was a giant crate shooting across the sky attached to a rocket. One of the Emperor's benefactions, in theory, but more likely, transportation of enemy forces that they had to be prepared to dispatch before they reached the village. "Get dressed, we have to move," he ordered without a backwards glance.
"No!" Koyanskaya pouted. Her hand wrapped around his still very erect cock, and in spite of the situation, Shirou shuddered.
"We don't have time for this!" Shirou hissed.
"When nature cries in agony," Koyanskaya recited. "a fox answers the call." The air grew dense with mana around them and Shirou's eyes widened in shock. So that was how she knew...
Out of nothingness, a Jötunn materialized. And then another, and another. And another one after that. Soon, they were surrounded by an army of giants, a familiar opponent from the Norse Lostbelt. Koyanskaya had a reality marble, and she was showing it off to Shirou. While Shirou summoned swords with his, he could clearly see that Koyanskaya's allowed her to recreate the monsters that she had encountered... What were her limits? How dangerous was she?
Koyanskaya's hand tightened around his penis as she lazily stroked it. "My men seem to be lacking a... sword of your… caliber… Not that any man would have ever have one so magnificent." She licked her lips as she looked up at him. "Care to arm them for me, so we can resume our fun?"
Shirou knew it was a bad idea, but he couldn't help but rise to meet her challenge... and well, he had a few swords a bit too large for him to use in that role for himself... and well, he had always been curious how the original form would perform in comparison to the favored version he stole from Archer. "I am the bone of my sword," he intoned. It was showing off, but to be fair, he was more than rejuvenated with magical energy given his romp with Koyanskaya.
In the open hands of every Jötunn materialized an identical copy of the rainbow sword, Caladbolg. The full version, not the modified arrow, that Shirou usually preferred. The sword was bigger than Shirou was, so it was impossible for him to use, he lacked the strength and balance, even with reinforcement. But for a giant? They could not have asked for a better weapon.
"Oh my," Koyanskaya gasped as she continued stroking his penis. "A noble phantasm? That many? You truly never fail to impress. It only makes sense that the most perfect man would also have the most perfect of swords... now where were we?"
She didn't give him a chance to respond before taking his cock into her mouth.
"Fuck Shirou! You are so fucking perfect!" Koyanskaya moaned.
Yu Mei-Ren wanted to scream. Why the fuck was there an army of frost giants here? That didn't make any sense! Koyanskaya shouldn't have had more of those hidden away, she had already released them and Qin Shi Huang had punished her for it! The Chaldeans had eliminated all of them! His all seeing eye didn't see hide nor hair of any more demonic beasts or giants from the other Lostbelts! It was supposed to be just Koyanskaya and Emiya!
Those giants were also much fiercer opponents than any of the demonic beasts she had previously run into. They had been upgraded somehow, their weaponry much more terrifying- seemingly at the level of a Noble Phantasm, and as a result, they had actually managed to injure Lord Xiang Yu! They were fiercer than some of the best warriors, despite being mindless beasts. The combination of their titanic strength with that odd drill sword in hand, had been nearly unbeatable. The men that Qin Shi Huang had sent to accompany her and her Lord Xiang Yu had been defeated almost instantly. Even those of Li-Shuwen's elite guard had gotten overwhelmed. It was only her nature as Zhenren and the almighty force that was her Lord Xiang Yu that had allowed them to prevail.
Even still, it had taken time, and when she stepped into the clearing, it was to a sight that she could not have imagined in her wildest imaginations. Koyanskaya was naked… and on her hands and knees? Her large breasts bounced all over the place as the sound of hips smacking into hips rang across the clearing. There was a man behind her… his face was obscured by Koyanskaya's bushy tail… but it looked like… Emiya…? His cock thrust in and out of her at a blistering pace, the ridiculously long thing going in and out.
"Oh fuck!" Koyanskaya screamed, lost in her own world. "Your cock makes me feel so alive! I'm your slutty beast pet! You've tamed me Shirou!"
"Wh-what are you doing!?" You Mei-Ren screeched.
Koyanskaya's heavy eyes drifted open to look at her. "Don't slow down!" She snapped when Shirou slowed his motions, intent on readying for combat… even if they were naked. "I'm enjoying the greatest man in the universe!" She cheered.
Yu Mei-ren bristled. "Lord Ziang Yu is…" Her eyes drifted back to their conjoined sexes and she shook her head violently. "What are you doing, fox? You are supposed to be a servant of the Foreign God remember?"
"Ah!" Koyanskaya moaned as her legs trembled with the force of her orgasm. "I belong to Shirou now! I'm sure that the Foreign God will understand that you can't say no to the only man like this!"
"You can't just break your contract with the Foreign God like some whore!" Yu Mei-Ren growled.
"She'll understand!" Koyanskaya insisted. "What's more important… protecting civilization? Or getting the fucking of you liiiiiife! Why should anyone care about stabilizing human history or transforming the future into a solid resolution! All that matters is being a perfect wife for the best man to ever live! Even the Foreign God would forsake the principles of mankind… she would turn her back on ensuring the continuaaaaaation of humanity!"
"That's completely ridiculous!" Yu Mei-Ren screeched.
"You disagree?" Koyanskaya sounded genuinely confused. "You just need a taste of what my daaaarling Shirou is packing! He'll make you forget all about your Xiang Yu within five minutes!"
"I would never betray Lord Xiang Yu!"
"I don't mind sharing! Every woman in the world should be on her knees for the only man worth a damm! Nobody else can fuck you like this! Nobody else can…"
Shirou's hand came down to swat her flopping tits causing her to yelp in a mix of pain and pleasure. "Shut up!" He snapped. "Stop acting like I am some god! I do not need to fuck her or any of my other enemies!"
"Then why fuck me?" Koyanskaya moaned. "Clearly you are a savage with the cock of a god meant to rape hot evil bitches into submi-"
She was cut off as Shirou's hand clasped over her mouth, turning the rest of her declaration into incoherent sounds. His forehead throbbed at how annoying she was. When would she learn to fucking shut up? The only reason he hadn't stopped fucking her with the new audience is because of her bullshit promise that she would fight them with the full force of her reality marble for as long as his cock was inside of her. She wasn't even doing so because she was that much of a whore- even if she was one. She was doing it because she knew it would make Shirou mad… and make him fuck her harder.
"I would never fuck you, Emiya!" Yu Mei-Ren roared.
"You'll change your mind once his cock is inside of you!" Koyanskaya screeched as she shook free of Shirou's hand, completely ignoring the disagreement of everyone there. "He is the only man who will ever satisfy you!"
"I am perfectly satisfied with Lord Xiang Yu!"
"You don't know what satisfaction is until you've tasted Shirou!"
Yu Mei-Ren growled in response as she glared at Koyanskaya's stupidly large breasts that flopped around with every thrust. And at that stupidly large cock that kept on sliding into her.
"Lady Yu," Xiang Yu spoke up. "I am not entirely certain on why they are behaving this way as it falls outside the grasp of my calculations… but should we not move to complete our mission and capture them?"
Yu Mei-Ren's cheeks glowed a bright red as her gaze snapped to her beloved Xiang Yu and away from the oddly enticing sight that she had been entranced by. "Yes, of course, let's do that!"
A/N: That was therapeutic after the last Shinji wins prompt. Now if only I could finish the Artoria wins prompt I've been working on for a while... One day.
The original prompt submitted was not this, so I guess it more counts as an inspired by a prompt submitted. They wanted Shirou as part of Chaldea to summon Koyanskaya through the gacha and get teased into fucking her into submission in Avalon le Fae. That felt overcomplicated when there's cannon settings that allow the same thing. If that offends the original prompter then oops sorry.
My default setting for any Shirou in Chaldea story is always going to be that there was five grail wars (Number is super irrelevant to FGO anyways) and Marisbury won the 2004 war- while letting Saber pretend to win as claimed in Camelot by Holmes/Tri-Hermes. Given that Artoria wins every route, as far as I'm concerned, it's the same war, Medea was an assassin who refused to call herself one (Rulebreaker so reads as an Assassin weapon and she qualifies for the class), Kojirō was a drifter or phantom spirit, you choose which. Solomon/Marisbury hid in the background and claimed the wish directly from the Greater Grail after Shirou destroyed the lesser. This is not cannon, but is by far the easiest way to merge the two worlds without breaking all of the continuity of one of them.
Chaldea does know that Shirou has UBW, but they are waiting for him to choose to reveal it for the same reason they wait for Nemo to trust and bond some with Chaldea before he uses his NP to create the Nautilus. Shirou logically assumes that they do not because he doesn't realize they summoned EVERY Heroic Spirit and assumed without a catalyst, summoning a Counter Guardian from the future would be impossible.
And he assumes that if it was known info that the heroic spirit EMIYA had a Reality Marble, he would be sealing designated. Chaldea only got a new base to resummon servants like two days before leaving for LB3, so EMIYA wasn't resummoned yet. Maybe a bit unrealistic, but I wanted Koyanskaya scaring him with her knowledge too much to not do it this way.
Koyanskaya's reality marble aria is complete hogwash that I made up. I do not claim to be a poet. Red Hare spreading confucianism by praising carrots was pure crack I came up with while snacking on carrots, but my god does he talk about them a lot.
The aim here was less Koyanskaya mind break although that occurs and more her deciding that lying so obviously is not the optimal method of teasing so she switched to praise which works better because of who Shirou is. Not the best portrayal of her, as I kind of just reduced her to a shameless flirt and got rid of what made her interesting.
Shirou's portrayal is also kind of weak after the first scene, but eh making him snap and rape anyone is hard. Having her tease him about Rin when she's gone because of the Foreign God felt like the best way to break him. This is obviously UBW Shirou. The reason for the break up was me feeling unhinged, and was incredibly dumb, but the idea of Rin breaking up with him because he fucks her too well that she can't think clearly sounded hilarious so... And I wanted the split amicable and eh that felt like the easy way.
The Yu Mei-Ren scene was originally going to be like Mordred back at Chaldea getting annoyed, but felt like she fit better and wasn't as disjointed of a scene.
The thing Koyanskaya says at the end about why the Foreign God will understand are her quoting Olga's speech in the prologue of FGO (3-2). They spell out a lot of stuff about where the story is going in the prologue all the way back in Fuyuki when you reread it. Strongly encourage everyone to do so. It's short and so dense with things that seemingly are contradicted later by different narrators and actions that look very suspicious based on what occurs later. Obviously, Koyanskaya should not know the Foreign God is Olga or theoretically female (Still betting on it being Type: Venus) at this point in time, given that the Foreign God themselves doesn't know that... but uh ignore that, it sounded funny.
If you want to make me happy with prompt submissions this time (again not at all required), give me happy sex. Stuff like the Musashi prompt or the Serenity one. Not NTR, rape, or cheating, but just an usual pairing with a more romantic focus where characters can be happy with just a two person pair. (Serenity was a horrible example lol). Again, feel free to ignore this suggestion and submit rape, NTR, bestiality, or whatever other fucked up shit you can think of.
Next chapter is Sōjūrō with Aoko and Alice. Theoretically, that will be out on Friday. If you missed it, I published a prompt response separate from this with Morgan/Shirou a few days ago.
Leave Kudos, subscribe to me and this fic to not miss future prompt responses. Feedback is also appreciated. Please comment more prompts even though I have plenty, I like having options and just reading them. Chronological order has no bearing on what I do next, I choose what's vibing for me at the time.