Prompt: They had done it. Shirou and Saber. Together, they had won the Holy Grail War... and now Saber was asking him to use the Holy Grail and wish for her incarnation... Yet, when Shirou made the wish something strange happened... Standing in front of him were two equally familiar Saber's- both unmistakably the Artoria Pendragon he loved, even if one of them was an Alter. And neither of them were happy with the other Saber being there and demanding Shirou's attention. They fight over literally everything until Shirou finally snaps and tries to put a stop to it.

Tags: Shirou Emiya/Artoria Pendragon/Artoria Pendragon Alter, Threesome, Sex, Oral, Rimming, Yuri, Selfcest, Marathon Sex, Femdom

Shirou Emiya smiled at the Saber class servant in front of him. "Are you sure about this?"

"No…" Saber shook her head solemnly. "You were right, Master… it would be wrong to undo that which has already been done."

"Then what will you wish for?" Shirou asked, hope welling up in his chest.

"Do I need to answer that, Master?" Saber replied with her lips upturned in a smile.

"I just want to hear it," Shirou admitted with a slight blush.

"I love you, Shirou Emiya." Her lips met his in a tender kiss. She was the first to pull back. "You should be the one to make the wish for us, Shirou." She thrust the Holy Grail into his hands.

The black liquid within was bubbling over the surface, but did not spill. "Are we sure this is safe?"

"The Holy Grail is meant to be used, it will be safe," Saber reassured him.

"Okay…" He hoisted the goblet to his lips. "I wish that my servant, Artoria Pendragon would be incarnated, and be able to live a normal life in the modern era with me ." He drained the steaming contents of the goblet, the black liquid burning his throat as he swallowed.

And the grail was compelled to answer his wish. But the wish was corrupted, tainted by the Evil that lurked in the grail. It would twist any wish to the most perverted form. For Emiya Kiritsugu, that had been using his ideal of saving everyone to make it so there were only a few people in the 'everyone' after his wish was granted to make the wish possible. For one who wished to be the richest man in the world, it would reach that by stripping the wealth from everyone else to make him the only one with riches. If Artoria had wished that someone else would pull the sword from the stone, it would have led to the world being pruned and the action rendered meaningless.

But for a wish like that? One so pure, and so innocent? One that could not be twisted? What was a monkey's paw like the Holy Grail corrupted by All the Evils in the World supposed to do? It had to incarnate Artoria Pendragon in the modern era- and it couldn't even send her to a different world, or a different place in this world under a different name. The wish had been clear Artoria Pendragon was to be incarnated and live a normal life in the modern era with Emiya Shirou… so Angra Mainyu would give both him and another Emiya Shirou exactly what they wished for. And in doing so nobody would get what they really wanted.

"It worked!" Two different voices exclaimed. One was cheerful and giddy, the other resolute and firm. Both voices belonged to the same person.

"Who are you!?" Artoria Pendragon demanded as she turned to her more pale twin in dark armor standing right next to her.

"I am Artoria Pendragon, the King of Britain," the pale Saber responded. "The consort of Shirou Emiya."

"I am Artoria Pendragon!" Artoria snapped back. "You're just some imposter! And I'm the one with Shirou!"

Saber Alter tilted her head at that statement. "Please, as if a girl like-"

"Saber!" Shirou shouted, cutting them both off as two identical heads turned to look at him.

"Artoria!" He tried again. Both of them looked at him expectantly before turning away to glare at the other. Shirou pinched the bridge of his nose.

"Look," Shirou said with a sigh. "I'm not sure how I have two servants now but…"

"You have one servant," Saber Alter cut him off immediately. "Me."

"I am his servant!" Artoria growled. "I am the one who fought with Shirou to claim the Holy Grail! I gave up my wish for him!"

"You dare to claim that was you?" Artoria Alter snarled. "I am the one who chose to stay with my consort rather than wish to undo that which has already come to pass."

"That was me!" Artoria protested. "That was my wish I revoked!"

"Girls please!" Shirou shouted.

Both highs turned to him expectantly, ready for him to declare that they were the real Saber. "I don't know what is going on either, but can the two of you just get along so we can figure it out?"

"Shirou?" Artoria whispered. "Do you really not remember… us?"

"Of course not," Artoria Alter cut off their tender moment with a scoff. "He is my Master and my consort. He only remembers me, not some pretender."

"You're the pretender! What's with all the black anyways? Are you trying to look like some sort of tyrant?"

"Yes," Alter replied simply. "I am in fact a tyrant. Thank you for noticing."

"That's not a good thing! We're supposed to be a good King!"

"Ineffective. The only priority of a hero should be to protect the people. Their hatred is always going to be the result of that and should not be shied away from. That is the only effective way to rule Britain and guide it."

"You're a monster! You sound just like Morgan!"

"Morgan is my sister- my mother even. Of course, I would sound like her. She is a wise ruler, although perhaps a bit too kind in spite of her propensity for cursing humanity." Alter replied with a slight hint of steel to her voice. "Having to cut her down to claim the grail was an unfortunate inevitability."

Artoria turned to Shirou with horrified eyes. "Look at her! She's a monster! You can't possibly think she is me! She's obviously some scheme by-"

"Saber stop antagonizing her," Shirou answered with a sigh. "You're deliberately painting yourself in the worst light possible to rile her up."

"I did no such thing!" Artoria snapped.

Shirou's hand tugged at his hair in frustration as he directed his attention to the King of Knights. "I was addressing her, Artoria."

"Do not use my name while speaking to a fool, Shirou. You have my favor, but I will not tolerate such disrespect from anyone."

"Fine!" Shirou roared throwing his hands in the air. "You are Art!" He pointed at the Saber in black. "And you are Ria!" He jabbed his finger at the one in blue. "Neither of you get to use your actual names and I won't have to deal with you getting offended or confused every time I try to speak? Does that make you happy!?"

"Absolutely not!" Both of the Saber's roared in unison before their faces flushed when they realized that they had. They turned to glare at the other. "Do not copy me!" Again they spoke in unison.

Saber Alter was the first to regain her bearings. "I am the King of Britain, do not disrespect me by calling me such a vile name, consort. If you would like to call the cur something so demeaning, then of course you have my blessing."

"Artoria stop! Both of you! I don't care who is who or what you want to be called! Just get along!" Shirou snarled. "You do not have to fight over every single thing! I love you both okay! It doesn't really make sense, but dammit you're both my Saber."

"I will not tolerate unfaithfulness from my consort, and I certainly will not be one to participate in polygamy," Saber Alter immediately rebutted.

Artoria nodded eagerly. "I'm not going to share you with a tyrant Shirou. You are my sheath."

"Neither of you want to share," Shirou muttered in frustration. "Great, so now what? I'm not choosing between you. You both are my servant. Saber."

"You won't choose me?" Artoria asked softly with sadness in her voice. "But I…"

"You will simply prove that you are my Shirou and not hers," Saber Alter interjected.

"He'll prove that he's mine!" Artoria shouted. "Err… how is he doing that again?"

"Shirou will simply trace the Hammer of the Vile King: Vortigern like he did against my sister in our war. That will show that he's my Shirou , not yours and you are the imposter."

"You fought Morgan…?" Artoria whispered. That was very different from her war. "Shirou won't be able to trace the weapon of the Vile King. Nothing so filthy has ever touched the hands of my sheath, and it never will," she had no doubt that Shirou would prove her to be the real one when he was unable to trace the legendary weapon that he had never known.

"That's not really how my reality marble works-" Shirou interjected.

"Do it!" Both Sabers demanded.

"End this farce," Saber Alter added.

"Any weapon I remember, I can-"

"Do it!"

"This doesn't prove anything-"

"Shirou, stop. You shouldn't be entertaining the delusions of a tyrant. Tell her you can't, and we can go home together," Artoria chipped in, not wanting to be outdone by the tyrant in anything.

Shirou sighed wearily. What did he do to deserve this hell? "Fine. This proves nothing, but it's obvious that I don't have a choice. Trace on!"

In his hand appeared a scythe that was very familiar to Shirou Emiya. It was the weapon of the white dragon, the abyssal worm, Vortigern. The enemy that Artoria- the darker one at least, had been given their kingship to defeat. The one who with this scythe swallowed even the light of Excalibur, causing Artoria to darken her blade in order to cut through the inside of his stomach. The weapon was an ugly thing, looking more alive than metallic. It looked like the arm of a mantis has been fashioned into a scythe larger than Shirou was. It was a weapon that oozed the sensation of mud and darkness. And it was the weapon that Shirou had traced after the first time they… the first of many. It was the weapon that Shirou had provided to Artoria after seeing it in her memories, and the weapon that allowed her to defeat both of their sisters.

"Whaaa…" Artoria gasped. "But how… you shouldn't have seen that…"

Alter smirked at her doppelganger. "As I told you. He is my consort and you are nothing but an imposter."

"Saber," Shirou tried to interject but again both of them opted to ignore him.

"This proves nothing!" Artoria exclaimed loudly.

"I already told you that it doesn't. If I remember the weapon I can-"

"Shirou prove that this means nothing!" Artoria demanded. "Trace the sword of Heracles!"

"Go on," Alter encouraged him when she heard Shirou sigh yet again. "Show her that you have never met Heracles."

Shirou wanted to cry, but he followed the demands of his King… both of them? In his hand the giant slab of stone that Hercacles had wielded appeared. "Happy?"

"See it meant nothing! He can trace swords only my Shirou saw too!" Artoria cheered desperately.

Saber Alter scoffed. "That's your big accomplishment to match up against Vortigern? A giant rock? Pathetic. No wonder you're so attached to my Shirou, if that is the best that you can do."

"Of course it's not!" Artoria shrieked her cheeks, lighting up a bright red. "Shirou show her Gáe Bolg!"

Shirou had no choice but to comply.

"See!?"

"Durindana," Saber Alter said just one word in response.

The spear replaced the old one in his hand as Shirou's head throbbed in frustration. "This isn't going to prove anything…" he grumbled but went unheard once again.

"Rule Breaker!"

"Harpe!"

"ENOUGH!" Shirou roared. "I am the bone of my sword!" In existence surrounding the trio all of the weapons from the grail war appeared. The Noble Phantasm of every servant fought in the war of both Artoria and her mirrored self. The sword Caliburn that he had traced after his first time with one Artoria, and the scythe that he traced after the same first night with the other Artoria… and the entire contents of Gilgamesh's treasury for good measure. He was panting and his body was coated with sweat by the end… but he felt oddly rejuvenated?

"As I was trying to tell you! I REMEMBER both of you! I fought with both of you for the Holy Grail in two different wars! I saw all of those weapons in both of your wars! I am the sheath for both of you! There is not a "your Shirou!" I am just Shirou Emiya! It doesn't make any sense but I am both of your Shirou's and you are both my Saber!"

Saber Alter stepped closer to him and cupped his cheek. "My consort, it appears that you've been deceived. You have always been mine and you will never be anything but mine. That is your destiny as my sheath."

Artoria growled and stormed up to Shirou, yanking on his arm and pulling him towards her and away from the tyrant. "He's my Shirou!"

"You still have no proof, pretender," Artoria Alter replied, tugging on his arm and dragging him back towards her.

"I do too!" Artoria protested without knowing what that was yet as she tugged on Shirou's hand, ripping him from Alter's grip. "Uh… Shirou trace Avalon for her! Show her that you are my sheath! The same one you traced against Gilgamesh! Show her!" Artoria demanded incessantly.

"Saber… I don't think…" Shirou shifted nervously.

"No go on, Shirou…" Saber Alter replied with a smirk. "Show her that you can copy the Avalon at her hip."

"I don't-"

"Shirou!" two identical voices snapped the demand at him.

Shirough sighed wearily and activated his circuits once again.

In his hand was the sheath of the ideal king. Gold and blue intertwined, to form the sheath that connected to the reverse side of the world. The absolute defense and total healing- a form of immortality. The most beautiful Noble Phantasm that there was… and Artoria couldn't do anything but beam at him in response to seeing the proof of their connection, something the imposter didn't have.

Saber Alter cackled in response and pressed herself up against the other side of Shirou, her armored breasts sandwiching his side. Her hand reached across his chest to cup his heart. "And that is how I know this is my Shirou, foolish Alter of mine. For my Shirou still has Avalon in his heart… and this Shirou well… surely you can feel Avalon throbbing under his skin? He is mine for it is in his heart, and not at your hip."

Artoria's heart shattered. "No… you're wrong!" She shouted… but she couldn't deny that Avalon was indeed within him… and at his hip… but it wasn't her Avalon… It instead tied him to her . The twisted mockery of Artoria Pendragon. No.

Artoria tugged on Shirou's arm hard and ripped him away from the Alter's claws. She did not hesitate, having already committed to her plan. Her scabbard came off of her hip and was thrust into Shirou's chest before she could think twice of it.

Shirou stumbled back as his body burned with energy not of this world, but his body was used to Avalon and this was the same exact copy he had already adapted to, so after a moment it settled in and Shirou could breathe easy. He forced himself to his feet with more strength than he had ever had before, jumping up from his back to his feet in one movement.

Saber Alter was staring down Saber with a glare and her Excalibur Morgan drawn at her side. "You dare to endanger my consort because of your petty jealousy?"

"I am not jealous!" Artoria snarled, her own Excalibur held in front of her. "I was simply returning the sheath to my Master, as I planned on doing before you showed up!"

"Are you just that-"

"Saber!" Shirou shouted running between the two of them. "Both of you! I am fine! Can we please not fight! I care too much about BOTH of you to let that happen."

Artoria was the first to sheathe her sword, but she did not change her stance or stop glaring at Alter over Shirou's shoulder.

"Look, I can trace Avalon and I have Avalon. As I have been saying this entire time, I have the memories of both Saber and Saber Alter. I can not prove to you which Shirou I am, nor do I have any desire to. As far as I am concerned, I am Shirou Emiya, and Shirou Emiya fought in two grail wars simultaneously. I'm not choosing between the two of you. You are my swords and I am your sheath. You are my consort, and you are my girlfriend. You're too alike to not get along, so please try… for me?"

The two only heard half of what Shirou had said. "You refuse to validate that you are only my Shirou Emiya despite retaining Avalon? Fine then, we will seek another opinion who can force you both to realize the truth. You are mine and mine alone, Shirou Emiya."

"I can not agree with that last part, but… I agree that we need someone else who interacted with me to affirm that I am Shirou's servant… but who could I ask…" Artoria mused.

"Rin Tohsaka!" They both shouted simultaneously and glared at each other in response. As they started to bicker again, Shirou held his head in his hands. He wanted to cry. He could only pray to every deity that probably didn't exist that Rin knew a solution to all of… this.

That had been just two hours ago… and Rin had given them answers that only made things more confusing and solved nothing. She had not been happy with Shirou for… whatever this was. Nobody knew still. Somehow, when Shirou had made his wish to the holy grail that had caused worlds to converge or something? So both paths had somehow occurred simultaneously? Most of Rin's explanation went over it's head, but she had speculated that it had something to do with Zelretch having made the grail? She had gone to the temple the minute Shirou left to find the remnants of the grail muttering something about how it could advance her research by decades with greed in her eyes.

There was one good thing to come from Rn's explanation, despite the inability of either Saber to accept that they were not the only real one, was that they had a way to identify them. Rin had explained that Artoria Pendragon was the original King Arthur of legend, and as such the original King Arthur was the one closest to that legend- the Blue Saber rather than the self-proclaimed tyrant. She had cut off the celebrations of Artoria to explain that it didn't mean that Artoria was the original version of Shirou's servant- just like Archer was still summoned by Rin as an Alter of Shirou- apparently neither version of Saber had realized that? Their reactions had been amusing at least, especially when they reacted the same exact way without realizing it. They were both Artoria Pendragon at their core.

In the end though, Artoria Pendragon, the one carrying Excalibur Morgan had accepted the name Alter. Only because Shirou at Rin's stomping on his foot had agreed with her that he thought it was a very nice name, and one fitting of a King like her… and he did like the name enough. Even if most of it was relief in being able to call Alter something that was uniquely her. Alter had just one condition to accept the name: the other version of her would not be allowed to call herself Saber either. Artoria had grumbled about it, but had accepted going by her actual name- Artoria. And so for the first time, Shirou had been able to address only one of them at a time.

It sounded better than it was. Shirou had asked Artoria to close the door behind him and Alter had raced to do it instead. Shirou had asked Alter to grab something off the table that she was right next to, and Artoria had reached over them both to try to grab it first. Shirou asked one a question and they both would respond. And both of them refused to let him out of their sight for longer than it took to use the bathroom- the one time he had used the bathroom, he had emerged to them glaring at each other right outside the door. There was no danger of an assassin attacking this time, and Shirou still had less privacy from the woman- women he loved than ever before.

Shirou had tried to suggest going to the dojo to unwind and work on his training. Both of them had eagerly accepted the suggestion. Shirou thought it was the perfect plan- they had the same fighting style and that was what had led to him bonding with both Sabers in their grail war. They would unite around beating him into shape… It had not gone that way. Rather than work together to teach him or take turns, they had refused to work together in any form. They hadn't fought… that would have been a mercy. No, instead, the two had decided to train him individually… at the same time. Defending attacks from King Arthur on both sides was an impossible task for even the greatest swordsman, let alone an amateur like Shirou. Thankfully he had healed from every blow he couldn't defend against- nearly all of them in a matter of seconds thanks to the supercharged double dosage of Avalon… and while he would not tell either of them, in fear of it happening again, he had learned a lot trying to defend against two of the Greatest Knight to ever live simultaneously with only a shinai.

Finally, Shirou had some peace now… all it took was saying he was going to go make them dinner. Neither would ever dare disturb him in the kitchen. It was not worth tainting the food by making trouble, or even maintaining this stupid rivalry. They had even openly agreed with each other that food was more important! Alter had said the words "she is right!" Except, as Shirou stared at the counter full of ingredients, he realized he had to avoid a war.

Shirou had not expected Saber to stay after the war- either Artoria or Alter, but he had hoped they would choose him over their misplaced wish. In his hope, he had wanted to surprise them with their favorite foods if they came back for dinner. For Artoria he had chosen a better version of the miso soup she adored the first time she had it- as far as he could tell, it was her favorite. And for Alter he had made her pancakes- she adored sweet things and greasy things. It seemed like the more unhealthy it was, the better with her. So he had prepared to make her pancakes for the first time… he was sure that Artoria would enjoy the pancakes just as Alter would enjoy the miso soup, but they would not enjoy it as much… and they would start a war over the fact that Shirou had only made one of their favorites…

You know… the peace and quiet as they eagerly awaited dinner was nice. It was the first time he had felt peace since making that wish… maybe he would make both? Anything to make his servants happy… and anything to spend a little longer without being suffocated by them…

It had been a week since the second Saber showed up, and things had not changed at all. Shirou was still a rope for them to play tug-a-war with. His shoulders had been dislocated no less than fifty times this week, and Shirou was pretty sure that without Avalon he would have literally lost an arm by now. This was supposed to be his happy ending, that was the point of wishing for a life with Saber and him in the modern era. Instead, Shirou had wound up in the bowels of hell.

The two had not mellowed out at all or learned to live with each other. If anything they had gotten worse. Shirou's only semblance of peace was the kitchen, and even then it wasn't. He had been forced to cook enough to feed an army for every meal. The two seemed to view eating as a competitive sport to see who could stomach more. A sport that always ended in a draw as Shirou ran out of food and they had the same number of empty plates. They often ran out before Shirou had even served himself! Thank god for the super charged Avalon making it okay to miss a few meals. And if Shirou ever tried to just make one thing for dinner- one night he had only made wagyu believing that both of them would appreciate the taste, and having thought that the effort of cooking one meal so elaborate would justify only making one… because that was something that he had to justify now.

They had both enjoyed it… but Artoria had enjoyed it more than Alter did… and they had noticed whose palette it was obviously made for. Artoria had been vocal in her gloating that Shirou clearly loved her more . Alter had refused to acknowledge the possibility, but the frown she wore the rest of the night and how she taunted Artoria less said all that needed to be said. So Shirou had put chocolate chips in her waffles the next morning, while making individualized meals for both of them, and had gone back to seeing nothing but smiles directed his way- even if they still only glared at each other. The cooking was also the least problematic element of their new life… although his wallet might disagree with that one.

Sleep was an issue. Both of his servants had refused to do anything but share his that was how he spent his final nights with both of them before his wish. So when Shirou had gone to bed that first night- after the most exhausting day of his life… there had been the two of them waiting for him. Each claimed one arm before he even reached the bed… each of them equally immodestly dressed and dragged him to bed.

Any indecent thoughts that Shirou might have had perished immediately when the moment his head hit the pillow, the tug-a-war resumed. Shirou preferred to sleep on his side so without thinking, he turned to his right to face Artoria and closed his eyes to sleep… only to be violently tugged around to face the other version of Saber. He had rolled his eyes affectionately, and closed his eyes to attempt to sleep… only for Artoria to give him just two minutes of peace before yanking him back towards her.

Shirou had finally given up on their game of tug-a-war and resigned himself to sleeping on his back… and it was fine for all of three minutes before Artoria had decided to drape her leg across him. Shirou loved the closeness, and normally would have gladly accepted such an action… but not while sharing a bed with Alter as well. Alter had decided that the only appropriate response to her leg across him was for her to rest her head on his chest… and they just kept escalating and tugging him into more and more uncomfortable positions until they eventually devolved to pushing each other off of him to claim the other's territory. Eventually, after hours of tugging, they had run out of steam and settled against his side to sleep- neither of them too intrusive. It was a miracle and Shirou had been quick to take advantage and fall asleep in the rare semblance of peace that he got.

He had woken up to a sudden stiffness in his groin… and a warm hand wrapped around it. His eyes couldn't make out which one it was… but it was obvious that one of his servants had decided to wake him up with some pleasure. Could Shirou really have been blamed for forgetting the hostilities for a moment and wanting to enjoy his girlfriend's skilled ministrations as her hand moved beneath his pajama bottoms? But a gasp of "Saber" had brought things to a premature end. Artoria's head had snapped up from his neck and when she saw what Alter was doing… she had tackled her off the bed. As Shirou tried to regain his bearings and tuck his morning wood away, he had glanced at the clock on the wall… he had only gotten 22 minutes of sleep before being awoken… to have them fight over him again.

That was the most sleep he had gotten all week. Thank god for two sets of Avalon apparently giving him unlimited energy. He had not gotten the same amounts of food or sleep as he was used to- and he had more energy than ever. It was the only reason why he had lasted this long with the Saber's at each other's throat. Now if only Rin would hurry up with finding out a way to unmerge worlds or whatever… but the last time he had called, Rin had screamed at him that she had too much research to do right now to help him right before hanging up. So he was stuck for the time being.

"Shirou!" Artoria called out to him. "Come play poker with me!"

Alter scoffed. "Please. You just want to win with your incredible luck. A game of skill like Risk is better suited for my consort and I, a test of strategy and skill."

"Risk is-"

"Enough!" Shirou roared, ripping his hand from both of their grips. "I have had enough of this! I am done! DONE! Figure out how to get along or neither of you can have me! Stop fighting over every little thing! I am not some possession! Take turns or share me together, I don't care! But I am done being in the middle of every little squabble you have! Figure it out or don't bother me again!"

Artoria glared at Alter across from Shirou… look what she had pushed her Master to… Dressing like some whore! Her tight black shorts that barely covered her butt, and her even tighter spaghetti top all in black. Her boots even went up past her knees whenever Shirou had tried to drag them outside! She looked more like the kind of prostitute that Tristan would bring home than the proud King that she claimed she was supposed to be… And the way she would bend over or press herself against Shirou to flaunt her- their body…

That girl was an offense to Artoria' existence, the aptly named Alter who acted so much like the monster her sister had become. The one who had the audacity to taint Excalibur and rebrand it after the witch that had destroyed Britain. Morgan had ripped Britain away from her… because Artoria had rejected and supplanted her sister… and Alter had been able to keep her sister… and Britain apparently. How was that fair? She was a tyrant! She did not deserve Shirou! She wouldn't let her rip another thing away from her! Err… not like Morgan had at least…

"No," Saber Alter replied dismissively.

"I'm not giving you a choice!" Shirou yelled back, still very wound up by a week of… yeah.

"You misunderstand your place, consort. I am your King. You do not have the right to command me."

"I am not commanding you, I am simply informing you of the consequences if you continue with this madness!"

"In Britain, I would have you executed for talking back to your King. Be grateful for my mercy, and apologize for your impudence."

"No!" Shirou snarled, actually standing up straighter in response to her heavy bearing and cold glare. "I am putting my foot down!"

"I do not accept this!" Artoria blurted out. She couldn't let Alter trample her. "You can not give me orders Shirou, not anymore. You claimed that we are equals."

Alter snorted. "My consort might sit at my right hand, but he is not my equal; although his position is even above that of Morgan. I am a true king and have no equals."

"So am I!" Artoria wailed. "He is of course my most valued of knights! He lives in service of me! His King! And I am more of a King than you are!"

Alter nodded at her in that same smug way Morgan le Fay had when Artoria accidentally agreed with her. Artoria's cheeks went red in response, but she did not back down. "So you do know something about ruling… perhaps the foolish version of me wasn't completely useless."

Artoria's blush turned to anger, but she did not get the chance to respond before Alter addressed Shirou again. "Congratulations my consort! Your wish has come true! We have agreed that you are not allowed to order a King around."

"I am fine with listening to you as long as you two get along. I just want us all to be happy, okay? We can't do this whole-"

"Do not presume to give your King conditions to your fealty. You have already sworn it to me."

"That was before-"

"Shirou," Artoria cut him off before Alter could. "You are my sheath, you are already sworn to be mine. Please do not even pretend to threaten me with separation. That is… I won't allow it."

"Indeed," Alter added with a nod. "Well said, my counterpart. If I give you the command to do something, you should do it without a word of protest. Your only response should be, Yes, your Majesty. I give you the rare privilege of free will. Do not make me reconsider."

"You do not get to-"

"Remove your pants right now," Alter cut him off with a stern glare. "I have been deprived of tasting you for far too long, and my patience has met its end."

"I'm not-"

"Shirou will do no such thing with you!" Artoria screeched. "I'm the one who will be tasting his cock!"

"Neither of you are going to suck my cock!" Shirou screamed in frustration. Artoria's face glowed a brighter red than his hair… she had said that out loud!? "I am not doing anything with either of you until you learn to get along!"

"You do not have a choice," Alter replied while rolling her eyes. Her fingers extended to reach for Shirou's belt. "I have given you an order, and you will follow, Shirou. That is your duty as my consort." She skillfully undid Shirou's belt with well practiced hands.

In for a penny, out for a pound. "I am the one who he will be following the orders of!" Artoria yelled, more because she wanted to not be outshined by her Alter than because she wanted Shirou to treat her as anything but an equal. She knelt down next to Alter in front of Shirou and tugged on his pants, causing them to pool around his ankles with their combined efforts- no matter how unintentional the teamwork had been.

Shirou's cock bobbed before them, the tip already wet with precum. "Please, let's stop this before we do someth-"

His statement was cut off as he groaned. Artoria had barely had the time to blink before Alter's mouth was around his shaft, her pale pink lips stretching around his girth. The sight of her doing this in such a commanding way was something that Artoria had never seen before. It was as if she had forgotten that she was the one who was supposed to be in charge of Shirou… Was this what Artoria looked like when she gave Shirou the same attention? Her own eyes grew wide as she watched her counterpart's head bob up and down with a slow, deliberate motion that seemed to tease Shirou to the brink of pleasure.

Artoria couldn't help but feel a twinge of jealousy at the way Alter's eyes closed in pleasure as she took him deeper and deeper into her mouth, her cheeks hollowing as she sucked. Her slim, pale hands reached up to cup the base of his cock, her fingers wrapping around it like a vise. The contrast of her porcelain skin against his arousal was stark and erotic. Artoria's own breath hitched as she took in the sight, her eyes locked on the intimate dance between them.

The sound of Shirou's voice grew more strained as Alter's mouth worked him, and Artoria's gaze flickered to his face. His eyes were screwed shut, a look of pure bliss etched onto his features. It was a look that Artoria knew she had put there countless times herself, and seeing it on his face from the actions of another felt… odd. She felt a warmth spread through her own body, her own desires flaring up despite her anger. She wouldn't let Alter steal Shirou from her.

"Hey! I was going to... Get off of him!" Artoria protested.

Alter pulled back off the tip and smirked before diving back down. She came up again and spoke between licks of the head of his cock. "I am here first, Artoria, you simply must find another way to serve my consort."

Artoria huffed, not wanting to be outdone. She decided to show Alter she wasn't going anywhere. She leaned forward and wrapped her own mouth around Shirou's balls, her eyes sparkling with determination. "Hmph," she murmured around his sack.

Shirou's eyes snapped open, a mix of shock and pleasure crossing his features as Artoria's mouth engulfed his balls. He hadn't expected this turn of events and could do nothing but let out a strangled groan as both of them worked him over. Alter's head bobbed up and down in a rhythmic motion that was both mesmerizing and excruciatingly pleasurable. Artoria's tongue danced over his sensitive flesh, exploring every contour and ridge with a hunger that was unfamiliar yet exhilarating.

Alter's hair fell in soft waves around her face, the silver-blonde locks catching the light as she moved her head in time with her sucking. Artoria's hair, a slightly darker shade of blonde, hung away from her face, exposing her flushed cheeks and the fiery determination in her eyes. She watched Alter from the corner of one eye, as Alter's own eyes never left Shirou's face as she sought to claim her territory.

"Mm," Artoria hummed around Shirou's balls, the vibrations sending a shiver up his spine. "Your cock is mine, Shirou. You are my knight, my Master, and my boyfriend."

"He is my consort," Alter growled but it came out as a glurk as she sucked on the dick of the man they both loved.

Shirou's hands went to the couch behind him, gripping the cushions tightly as his toes curled. He couldn't believe what was happening. The most important woman- two most importan women in his life were fighting over who got to suck his cock, and it felt incredible. He had never been in such a situation before and didn't know how to react, except to let out a string of incoherent sounds as they both worked to bring him to the edge.

Artoria's eyes never left Alter's, watching the way her cheeks hollowed and her throat moved as she deep-throated Shirou's shaft. It was a sight that she had never seen before, and it was driving her crazy with need. She could feel the heat of his cock against her cheek as she suckled his balls, her own juices dripping down her legs. She wanted to scream at Alter to stop, but she couldn't. All she could do was try to outdo her by taking him deeper, by being better.

Alter felt the tension in Shirou's body building up and knew he was close. She swirled her tongue around his cockhead, flicking it teasingly before plunging down again. She could feel his thighs tense and knew that with just a few more strokes he would be hers.

Finally, with a roar that was muffled by the mouthful of cock, Shirou came. His hips jerked as he shot his load into Alter's mouth, filling her to the brim. She swallowed eagerly, savoring the taste of his seed, it was even better than Alter had remembered. A week was too long without her favorite delicacy. She pulled away to smile at her consort, her lips stained white as the last of his orgasm dripped onto her face.

Artoria watched the scene before her with wide eyes. She hadn't realized how much she'd missed the feel of Shirou's cock in her mouth. It had been a week since she'd last had him, a week of frustration and longing that had built up to this moment. And now, as she watched Alter swallow his cum, she felt a sudden, primal need to claim him for herself. Without waiting for permission or even giving Shirou a chance to breathe, she slammed her mouth down on his cock, her teeth grazing the sensitive skin.

Shirou's eyes shot open, his body tense. Artoria's mouth was hot and wet, and she took him in with an enthusiasm that left him gasping for air. Her eyes never left Alter's, challenging her to do better. And with that, the battle for supremacy had shifted from words to actions, from tugging to a very real, more intimate form of competition for Shirou's adoration.

Alter watched with a mix of irritation and amusement as Artoria tried to outdo her. As if she was capable... but Alter was not one to be complacent in his authority. She crawled around to Shirou's backside, enjoying his eyes glued to her ass as she did, before once again kneeling down- this time behind him. With a devilish smirk, she leaned in and pressed her tongue against his tight asshole. Shirou's body jerked, his eyes shooting wide open in shock and pleasure as he moaned loudly. He'd never felt anything like this before... the most she had ever done was a finger during sex... Alter's tongue swirled and probed, her mouth exploring him in a way that was both strange and exhilarating.

Artoria glared at Shirou in place of the Alter she couldn't see. "Why would he enjoy... that?" She grumbled before taking him in again, doing her best to touch her nose to his pelvis.

Shirou's eyes rolled back in his head. Two Kings fighting for his pleasure, it was a fantasy that he hadn't considered since that first day with both of his Saber's in his life... then he had realized how dangerous of an idea it was and perished the thought. He felt his cock twitch, against Artoria's tongue, already on the verge of another orgasm.

But it was the sensation of Alter's tongue against his ass that pushed him over the edge. He couldn't help the moan that escaped his lips as she rimmed him, her saliva wetting his skin. His body was on fire, and he felt like he was going to burst. He came again, spurting into Artoria's eager mouth, filling her to the brim. "Saber!" He roared in pleasure. Artoria swallowed greedily, her eyes never leaving his and she did not pull back for a second.

The two of them pulled away, panting and flushed. Artoria licked her lips, a smug look on her face. "He clearly preferred me. I'm the only one who's name he moaned."

Alter scoffed. "Please, he was moaning my name. He enjoyed my tongue enough to overcome your complete lack of skill."

"I'm Sab..." Artoria trailed off as scatterings of pink appeared on her cheeks. "He was still clearly crying out for me! Isn't that right... Shirou?"

Shirou froze like a deer caught in the headlights. "Uh... I was moaning for both of you? You're both Saber to me..."

Both servants looked disappointed at his words. "Shirou..." Artoria whispered. "You... I should be enough."

Alter only sighed. "What a disappointing answer from my usually honest consort. I know that you are too kind to hurt the feelings of a different version of your King, but you will cease this charade and declare that you serve only me soon enough." She rose to her feet and tenderly kissed Shirou before Artoria or him could respond. "I shall remind you of who you belong to now. Get on your back, my sheath."

Artoria bristled at the familiar form of address coming from someone other than herself... sort of. It counted to her, okay! "I will be the one to claim MY sheath first."

Alter smirked. "As you wish," she said with a grace that made Artoria want to strangle her with her own hair. She stepped back and allowed Artoria to position herself over Shirou. She watched with a mix of amusement and envy as Artoria clumsily tried to lower herself onto Shirou's erection, her cheeks burning with determination. It was clear that she wasn't used to being in control during sex. Shirou's eyes were wide with shock and pleasure, his hands gripping at the rug as if they could anchor him to reality.

With a smirk at Artoria, Alter straddled Shirou's face, her thighs pressing against his cheeks as she settled herself onto his eager mouth. Her pussy was already slick with desire, and she couldn't wait to feel his tongue against her clit. "Make me cum," she ordered, her voice low and sultry.

Shirou's tongue darted out, tentatively licking at Alter's folds. What the fuck was going on? She tasted like a storm, wild and powerful. He had always loved going down on her, but this time it felt different. He was doing it because he had to, because she had demanded it... and Artoria was there watching... And that only made it hotter… Even if it probably meant he would die by the end… He lapped at her, exploring her with renewed vigor, his tongue sliding along the contours of her pussy. He found her clit and circled it, feeling her thighs tighten around his head. "Mmph," she moaned, the sound vibrating through Alter's pussy.

Artoria took a deep breath and tried to focus on the task at hand. She'd never been on top before, but she wasn't about to let Alter have all the fun. She braced her palms on Shirou's stomach and carefully lowered herself onto his cock. It was thick and warm, stretching her as she inched downward. She bit her lip as she felt the tip brush against her folds before finally sliding inside. Shirou's eyes rolled back in his head as Artoria's pussy enveloped him, her tightness a stark contrast to the warm, wet folds against his mouth.

"Yes," Alter moaned, looking into Artoria's eyes with Shirou's face buried in her crotch. She rocked her hips slightly, grinding against his mouth, her hands playing with her own breasts. She watched as Artoria took him in, her own arousal growing at the sight. "Fuck him, Artoria. Show me that you are capable of ruling like a tyrant."

Artoria growled but nodded, her cheeks burning with a mix of embarrassment and excitement. She began to move, her hips rising and falling in a clumsy rhythm. The walls of her vagina was a whirlwind of sensation as it dragged against Shirou's cock, sending shockwaves through her body with every pass. She moaned, the sound mixing with the wet noises of Shirou's mouth on her counterpart.

"Mmm, Shirou," Artoria whined, her voice strained as she tried to keep her composure. "Fuck me, Shirou!" she screamed out his name, hoping that the sound of her voice would be enough to make him realize that he was hers and hers alone.

Alter's eyes narrowed at the sound of Artoria's voice, but she didn't miss a beat, her own hips bucking as she approached her climax. She felt the tension in Shirou's body as he grew closer to his own release, his tongue moving faster against her clit. The room was filled with the sounds of their muffled moans and the slap of skin on skin.

Suddenly, Artoria's movements grew erratic, her walls clamping down on Shirou's cock as she came. "Shi-Shirou!" she screamed, her eyes squeezed shut.

Shirou's body tensed beneath them as he reached his own climax, filling Artoria with his hot seed. Artoria slumped down onto his chest, panting heavily. Alter quickly followed them over the edge as Shirou's tongue found her g-spot. She screamed in bliss as her thighs clamped down around Shirou's head. It felt so fucking good.

Alter climbed off of Shirou's face and looked down at Artoria with a smirk. "Move. It's my turn," she declared, pushing Artoria aside, and to Artoria's surprise, she let her spot be taken. She watched as Alter moved with practiced ease.

Artoria watched as Alter took his cock in hand and positioned herself over it. Despite the recent orgasm, it remained rock hard... how exactly? He had never been like this with just her... was it because he liked Alter that much... what did she have that Artoria didn't? Other than confidence... and womanly charm... and that... With a sultry look, Alter slammed down onto him, taking him fully inside her with ease. No, it had to be Avalon that was letting him go this long... he had two of them connected to Artoria now and that had unexpected effects! No other reason!

Shirou's eyes rolled back in his head as he felt the familiar, tight warmth of Alter's pussy around him. It was like coming home after a long journey. She began to ride him with the skill that Artoria had lacked, her movements swift and precise, each thrust bringing him closer to the edge once more.

Artoria couldn't help but feel a twinge of jealousy as she watched. Despite her own recent pleasure, she hadn't been able to ignore the way Alter's pussy clenched around Shirou's cock, the way she moved with a confidence that she hadn't shown earlier.

"What are you waiting for?" Alter taunted, her voice low and breathless. "Are you some sort of cuck? You told me you were a king, so go claim your mount."

At the challenge by Alter, Artoria had no choice but to comply. She couldn't let herself be outdone by this impudent doppelganger. Straddling Shirou's face, she felt his nose pressing against her sensitive clit, his tongue sliding along her wetness with surprising skill. He wasn't supposed to have done this very much… he wasn't this good last time… His mouth was hot and demanding, leaving no part of her pussy untouched. She threw her head back, moaning loudly, her breasts bouncing with every thrust of Alter's hips across from her.

Alter's movements were like a dance, a rhythmic ride that had Shirou's eyes glazed over with pleasure. Artoria felt her own pussy quiver in response, and she found herself grinding against his mouth, seeking the same release she'd just felt moments ago. Alter's eyes never left hers, the challenge clear. Artoria's jealousy grew with every moan, every time she saw Shirou's hips jerk upwards into her counterpart.

Artoria glared at her counterpart. At how she still managed to look smug even while she moaned at Shirou pummeling her snatch. Artoria was certain that she did not look that ridiculous- or that dignified even as Shirou nibbled on her clit with surprising skill... the only reason he was so good at this was because he had done it with Alter... not her. Stupid smug bitch with Shirou's cum still painted on her lips! She rocked her hips quicker against Shirou's tongue. Stupid Alter with her stupid smirk on those lips that were already dirtied by Shirou! She shouldn't be so smug! "Ahhhh!" Artoria moaned as Shirou found her g-spot and she saw stars.

Without warning, she leaned forward and kissed Alter, tongue delving into her mouth with the same hunger that was driving her hips. She had to taste it. The cum that was rightfully hers. The taste was unexpectedly sweet and salty, mingling with the flavor of Alter's mouth. Alter froze, eyes widening in shock before a fiery passion took over. Her tongue explored the inside of her more plain self's mouth, battling for control.

Alter finally pulled back, panting heavily, her eyes narrowed. "What was that for?" she demanded.

Artoria blushed, feeling the heat from her cheeks spread to her chest. "I... I wanted to taste what you had," she admitted, her voice low and trembling. "Er uh... I mean Shirou's cum...! It was... I didn't want to waste it!"

"Ah," Alter smirked, her eyes sparkling with mischief. "The cum was that all that you wanted?"

Artoria's blush deepened, but she didn't back down. "Exactly," she nodded, but she couldn't hold her gaze.

Alter's face flushed for a rare moment before she leaned back in, smashing her lips against Artoria's, claiming them just as aggressively. "You had some on your lips too," she whispered softly when she pulled away. "My consort's seed is not to be wasted."

Artoria's eyes widened in surprise, but she couldn't deny the truth of the words. She had tasted it when they'd kissed earlier, and now, as Shirou's tongue swirled around her clit, she couldn't help but agree. Everything from Shirou was too precious... that she would even lower herself to... with Alter... That was their only reason obviously. That was why she was leaning forward and crashing their lips together again.

The sound of Alter's voice grew distant as the world narrowed to the sensations between her legs and against her lips. She felt her orgasm building again, the pleasure from Shirou's tongue mingling with the heat of Alter's kiss, and she threw her head back, her hair cascading down her back like a golden river, her eyes rolling back in ecstasy.

"Shirou!" she screamed out his name as Alter's lips moved to her neck, unable to hold it back. Her voice filled the room, echoing off the walls and mixing with the wet, sloppy sounds of their lovemaking.

Alter's own moans grew louder as she felt Shirou's cock throb inside her, his cum filling her once again. She knew she had to keep going, had to show Artoria that her way is best, and that this is what they were capable of. Her hips began to buck wildly, trusting that Shirou would stay hard, her breasts bouncing with every thrust. Her eyes remained locked on Artoria, watching the other woman's reaction as she felt the familiar warmth of Shirou's tongue that never relented even as she recovered from her last orgasm. Shirou was nothing if not a diligent lover.

Shirou's eyes snapped open at the sound of Artoria's voice, and he watched with amazement as the two Kings kissed above him. What the fuck had happened while he was blinded with his ears muffled by Artoria's thighs? They had been fighting five minutes ago! And now they were making out while they rode him! What in the world!? Had they finally found peace? Was he free of whatever the torment of this last week was? How!? Did he care at all why?

His cock remained rock-solid, seemingly fueled by their passion. He tried to push the thoughts away, focusing on the task at hand. He lapped at Artoria's clit, his tongue moving in time with Alter's bounces. He could feel her body tense, could taste her approaching climax on his tongue, and he knew he had to give her everything he had.

Artoria's eyes snapped open, and she met Alter's gaze, their eyes locking as she felt the orgasm wash over her. She ground her pussy against Shirou's mouth, riding the waves of pleasure that crashed through her. "Yes... Yes... Shirou..." she whispered, her voice a mix of desperation and need.

Alter watched her with a smug satisfaction, her own orgasm approaching. "You see," she panted, "with some training, his tongue is just as good as his cock. Every part of my consort was made to please his King."

Artoria couldn't argue. The sensation of Shirou's tongue on her clit was indescribable, and she knew she'd never felt anything quite like it. She closed her eyes again, letting the feeling wash over her as she came, her pussy spasming around his tongue. Alter captured her lips again and moaned into her mouth as Shirou also drove her over the edge.

As they both rode the waves of their orgasms, their kiss grew sloppier, their tongues tangling together. Shirou's cock remained firm, and Alter felt the urge to claim it again, to show Artoria the depths of what their body was capable of. She pulled away from the kiss, panting, and looked at Shirou with a determination that surprised even herself. Then she looked at Artoria and smiled.

"Your turn to dominate him," she whispered, her eyes sparkling with mischief. Alter did not wait for Artoria to reply. She grabbed Shirou's ankles and hoisted them up to his shoulders, a silent order to her rival and only equal.

Artoria's heart raced with excitement and a touch of trepidation as she straddled Shirou's body, her thighs pressing against his abs. She had never been in this position before, but she felt the heat of the moment, the desire to claim what was hers, and the thrill of the unexplored. She slid down, her pussy enveloping his cock, feeling his firmness fill her up, and she couldn't help but let out a gasp as she took him in.

"Oh, Shirou..." she moaned, feeling more powerful than she ever had before. She began to rock her hips, setting a steady rhythm that made her breasts bounce with each thrust. The sensation of being in control was exhilarating.

But then, she felt something else. Alter's warm breath against her skin, the gentle nip of teeth, and the intrusion of a slick tongue into her most private place. Her eyes flew open in shock, only to see Alter's smug grin as she worked her magic, her fingers teasing and pushing into Artoria's tight ass.

"A-Alter!" Artoria gasped, her cheeks burning with a mix of embarrassment and pleasure. "What are you...!"

"Everything my consort owns is mine," Alter murmured, her voice a seductive purr. She didn't wait for Artoria's protest, instead delving deeper, her tongue probing and exploring as she pushed her fingers in and out in a tantalizing rhythm. "That includes you."

Artoria's eyes rolled back in her head as she felt her body betray her, the sensations overwhelming. She never knew it could feel like this. She never knew she would want it. "Oh, Shirou!" she moaned, her voice thick with passion.

Shirou, lost in the sea of pleasure, could only watch and feel as the two Kings took charge, his body their plaything. He had never felt so used, so loved, so alive. He could feel the tension building in Artoria as she rode his cock and Alter's tongue danced around her asshole. He thrust up into her, matching the rhythm of Alter's fingers and tongue, and watched as Artoria's body tensed.

"Ah, Shirou!" Artoria cried out, her orgasm crashing over her like a wave. She bucked against him, her muscles clenching around his cock, her hips moving of their own accord as she rode out the pleasure.

But it wasn't over. Alter's tongue and fingers continued their relentless assault, pushing her further than she had ever gone before. Artoria felt herself climbing again, the sensations building until she couldn't hold back.

"I'm going to...!" she warned through gritted teeth, her eyes squeezed shut.

"Come for him," Alter encouraged, her voice low and hungry. "Let him feel how much you love it. My consort deserves to know how much his Kings value his service."

And with that, Alter saying Kings in the plural, Artoria let go. She threw her head back and screamed Shirou's name to the heavens as she came, her body shaking with the force of her release. She could feel Alter's fingers deep in her ass, her tongue swirling around her clit, and Shirou's cock buried deep inside her, and it was too much, and yet she wanted more.

Shirou's own orgasm was close now, his body straining as he watched Artoria's beautiful face contort in ecstasy. He felt the familiar tightening in his balls, the warmth spreading through his cock, and with a roar, he came, filling Artoria with his cum once again.

The room was silent for a moment, the only sounds their panting breaths and the wet squelching of their bodies as Artoria slowly slid off of Shirou, her legs shaking with exhaustion. She collapsed onto the bed, her body still quivering from the intensity of her orgasm.

Alter leaned over, licking her lips, her eyes never leaving Artoria's. "See? That's how a king rides their man."

Artoria couldn't help but feel a twinge of envy. "Your turn," she said, a hint of challenge in her voice. "No, not like that!" She snapped when Alter made to straddle him again. "Let me show you how a woman loves her man."

"I am not a woman," Alter denied them immediately. "I am a King."

Artoria kissed her gently. "You can be both, let me show you, like you showed me."

Alter nodded stiffly.

Shirou looked at both of them in amazement, his cock still standing at full attention despite the intense climaxes he'd just had. The power of Avalon being squared was something he was still getting used to, but he wasn't complaining. He especially was not complaining that they were getting along now... and that they were really sharing him! He had two gorgeous blondes that he loved more than anything in his bed... well, on the living room floor actually, but... the sentiment remained. Although, he would admit to being a little scared for how his pelvis was supposed to remain intact after this.

But the look of pure bliss on Artoria's face as she pinned Alter to the bed, holding her legs up, was a sight to behold. Alter's eyes grew wide for a moment, but then she relaxed, her eyes closing in anticipation. Artoria's cheeks flushed a delicate pink, her full, soft breasts rising and falling with excitement. She watched as Shirou positioned himself, his cock still wet from her own juices. She bit her lip, watching the head of his cock disappear between Alter's thighs, the sight making her wetter.

"Isn't this great?" Artoria whispered to Alter, her voice filled with passion and determination. "Letting Shirou take control for once? Riding him was incredible... but this has a special place in my heart."

Alter's eyes snapped open, a fiery look in her silver-gray irises. "Don't get too comfortable, Artoria," she growled, almost playfully, her voice a mix of challenge and lust. "I'll show you that I remain in control even while underneath my consort."

With that, Shirou pushed into her, the force of his thrusts making Alter's body arch off the floor, her back bowing as she forgot her previous oaths immediately. She moaned, her voice a symphony of pleasure and need as Shirou's cock filled her again and again, the friction divine. Artoria watched her own need building as Shirou thrust in and out of her counterpart.

Alter had never imagined she would feel so alive under the weight of a man, especially not like this. She had always been the one in control, the one dictating the pace, the one demanding and receiving pleasure. But now, as Shirou's cock pounded into her with a primal rhythm that seemed to resonate with the very core of her being, she found herself reveling in the feeling of being taken. Her moans grew louder, her breasts heaving with each powerful thrust, her hips bucking to meet him as if they were two halves of a whole that had finally found their perfect fit. Her silver-gray eyes rolled back into her head, and she felt as if she were floating on a cloud of pure, unadulterated ecstasy.

Artoria watched, her breaths coming in quick, shallow gasps as she took in the sight of Shirou fucking Alter with such fervor. Her own arousal grew, a dampness spreading between her legs that she couldn't ignore. She craved the feeling of his tongue inside her, the feeling of being loved and worshiped as Alter was in that moment. And as if sensing her desire, Alter's eyes flickered open, meeting hers in a silent challenge.

Without a second thought, Artoria straddled Alter's face, her thighs pressing against the softness of her cheeks. Alter's tongue darted out, eager to explore the warm, wet heat of Artoria's pussy. The sensation was exquisite, like nothing she had ever felt before. Even Shirou's tongue didn't compare to this, he didn't know every single weak spot because he shared it with her.. Each stroke sent waves of pleasure crashing through her body, and she couldn't help but let out a whimper. "Alter..." she gasped, her name a prayer on her lips. Her own name. Her own tongue.

Shirou's eyes widened with surprise at first, but then a look of pure bliss washed over his face as he watched his two lovers come together in such an intimate embrace. He continued to pump into Alter, his hands gripping her hips tightly as he felt her pussy clench around him, her orgasm building. "Fuck, Saber," he groaned, his voice strained with pleasure, "you're so fucking beautiful when you're getting along with each other like that."

And as Artoria's orgasm ripped through her, she felt a strange sense of unity with Alter. They shared the same body, the same desires, and now the same man. It was intoxicating, a feeling she had never experienced before. She leaned back, her body trembling with the aftershocks of pleasure, and watched as Shirou reached down to stroke Alter's clit, pushing her over the edge.

Alter's eyes squeezed shut, and she let out a keening wail that seemed to shake the very foundations of the room. Her body convulsed as wave after wave of pleasure washed over her, her pussy tightening around Shirou's cock. And when she finally opened her eyes, they were glazed over with lust. "Again," she breathed, her voice a needy whisper.

Shirou chuckled, his own eyes dark with desire. "As my King commands," he said, leaning in to kiss Artoria deeply as he began to thrust once more. Artoria watched, her own arousal reaching new heights as she felt Alter's tongue delve deeper into her folds and Shirou's tongue against her teeth. She had never felt so wanted, so loved, and so utterly consumed by passion.

Alter's moans grew louder, her breasts bouncing with each impact of Shirou's hips against hers. "Fuck me, Shirou," she begged, her voice raw and desperate. "Fuck me because I'm yours." And Shirou did, his strokes becoming more powerful, his hands digging into her flesh as he claimed her in the most primal way possible. Artoria's eyes widened as she watched, feeling a strange mix of jealousy and excitement at the sight of Shirou's cock disappearing into Alter's tight, wet pussy.

The sound of their skin slapping together filled the room, a symphony of passion and need that seemed to crescendo with each passing moment. Alter's eyes fluttered closed, her hips rising to meet Shirou's every thrust. "Shirou," she whispered, her voice a mere breath of sound. "I'm going to come." And she did, her body shaking with the force of her climax as Shirou's cock hit her g-spot over and over again.

Artoria felt her own orgasm approaching, her pussy clenching around Alter's tongue as it worked its magic. "Alter," she whimpered, her cheeks flushing a soft pink. "Oh, gods..." Her voice trailed off as she succumbed to the pleasure, her body trembling as waves of ecstasy washed over her.

Shirou watched, his own orgasm approaching as he felt Alter's pussy tighten around him. "Again," he murmured against her lips, and she nodded eagerly, her eyes never leaving his. He quickened his pace, his cock sliding in and out of her with ease. Artoria's eyes rolled back into her head, her hips bucking against Alter's face as she felt herself being pushed closer to the edge.

"Oh, fuck," Shirou gasped, his hips stuttering as he emptied himself into Alter's eager pussy. She moaned around his cock, her own orgasm crashing over her as she felt him fill her up with his cum. Artoria leaned back, her chest heaving as she watched, her own orgasm building with every second. And then it came like a flood.

Her body arched, her toes curling in her socks as Alter's tongue danced against her clit. "Alter!" she called out, her voice breaking on her name as she came, her eyes squeezing shut. Alter's eyes fluttered open, a smug smile playing on her lips as she watched Artoria's reaction. She pulled away, leaving Artoria's pussy glistening with a mix of her fluids and her saliva.

She flopped down on her back as Artoria fell forward onto her front, her cheek pressed into the cool hardwood floor, their breathing ragged and intermingled. The room was thick with the scent of sex and sweat, a heady aroma that filled the air and clung to their skin. Alter's hair fanned out around her like a platinum halo, the sweat-dampened strands clinging to her neck and shoulders. She lay there, boneless and sated, her legs spread open, the evidence of her recent climax glistening between her thighs. Artoria's eyes were closed, her chest rising and falling rapidly as she tried to regain her breath.

Shirou's eyes darted between the two of them, his cock still standing at attention despite the intense release he'd just had. It was a sight that never ceased to amaze them, a testament to the power of Avalons plural lurking under his skin. The bond to the both of them. Alter's eyes narrowed, a wicked glint in the pale silver pools. She reached out a hand, her fingers tracing the path of a bead of Artoria's cum that had escaped the corner of her mouth and trailed down to her chin. She brought her hand to Artoria's mouth, smearing the sticky fluid onto her bottom lip.

"Taste it," she whispered, her voice husky and demanding. Artoria's eyes snapped open, meeting Alter's intense gaze. She licked her lip, the tang of her own cum hitting her taste buds and making her stomach flip. Shirou's eyes went wide, his cock twitching at the sight. Artoria's cheeks flushed, but she didn't pull away. Instead, she leaned in, her eyes never leaving Alter's, and kissed her deeply, sharing the taste of their shared lover. It was an act of submission and dominance all rolled into one, a silent acknowledgment that they were both bound to this strange, thrilling dance of pleasure.

Shirou's heart hammered in his chest, watching the two of them share that intimate moment. He'd never felt so alive, so needed. He positioned himself behind Artoria, his cock brushing against her wet, swollen pussy. She gasped into the kiss, her body tensing as he pushed into her. The prone bone position was something Alter had done with him, something that had simply been the King attempting to be lazy and something that they had both enjoyed too much to not do again. But now, it was Artoria's turn to feel the full weight of his desire, to be filled by him as she lay there, open and vulnerable.

"Fuck me, Shirou," Artoria murmured against Alter's lips, her voice barely audible. Alter smirked, her eyes drifting closed as she heard Shirou's cock slide into Artoria's warm, welcoming heat. She spread her legs wider, giving him full access to her body. Shirou groaned, his hands gripping Artoria's hips as he began to move, his cock sliding in and out of her with a slow, deliberate rhythm that had them both whimpering with need.

Alter's hand slid down to her own pussy, her fingers dipping into the slickness that still coated her. She watched Shirou fuck Artoria, her eyes glazed with lust. "Harder," she breathed, her voice barely above a whisper. Shirou complied, his thrusts growing stronger, more insistent. Artoria's moans grew louder, muffled by their joined mouths. Alter's hand moved faster, her thumb circling her clit as she watched the two of them. And then she did the unthinkable—she pushed Artoria's head away from her lips and down to between her legs.

"Lick your fellow monarch," she commanded, her voice a dark promise. Artoria's eyes went wide at the address, but she didn't resist. Instead, she obeyed, her tongue darting out to tentatively taste the offered treat. It was the exact same as the taste of herself. The sensation was overwhelming, the taste of Alter's desire mixing with her own arousal- an identical flavor. Alter's eyes rolled back in her head as Artoria's tongue began to explore, her moans mingling with Artoria's gasps of surprise and pleasure as Shirou pounded into her from above.

Artoria's hands clutched the floor, her nails digging into the wood as she tried to hold herself still. But it was no use; her body was a live wire, her hips instinctively pushing back to meet Shirou's every thrust. She could feel Alter's juices coating her cheeks, her nose buried in the softness of her folds. The pressure was building, a crescendo of sensation that threatened to shatter her. And just when she thought she couldn't take it anymore, Shirou's rhythm changed, his strokes growing deeper, more deliberate.

"Ah, Shirou!" she screamed, her eyes squeezing shut as her orgasm crashed over her. She licked at Alter's clit, the extra sensation against her tongue sending her soaring. The world was a blur of pleasure, her senses overwhelmed by the feel of Shirou's cock filling her and the taste of Alter's desire on her tongue. And then she felt it, the hot spurt of his seed filling her, marking her as his own. She moaned into the floor, the sound vibrating through her body as she came again.

But they weren't done. The three of them continued to move together, a symphony of lust and need. Alter's hand slid into Artoria's hair, holding her in place as she rode her tongue. Shirou's hands tightened on Artoria's hips, his strokes growing erratic as he neared his own climax. And when he finally came again, it was with a roar that seemed to shake the very foundations of the house. Artoria felt his hot cum fill her, the sensation of his release sending her over the edge once more.

And Shirou was still hard after standing up... Avalon truly was miraculously. Artoria met Alter's eyes and they both nodded together before slowly rising to their knees, their bodies very spent. They crawled towards his very erect cock hanging over them like a sword. In unison they took one of his balls in his mouth, their hands intertwining with their other halves as they sucked the man they loved together.

"Isn't this so much better than fighting..." Shirou groaned in response to their ministrations. Just an hour ago, he had wanted nothing more than to go back to only having one Saber in his life... but now... he hoped Rin never found a solution. This was paradise. He glanced down at the two girls holding hands as they stared at him... and it was not just his paradise…

A/N: This one was a ton of fun to write, although I'll be the first to say that a lot of things could be done better. Namely, how much of a wallflower Shirou became, and how much of a harpy I had Artoria behave as at times. Also the escalation during sex for the Artoria connection was sloppy.

If it didn't come across clearly, Shirou's wish to the grail lead to a Hollow Ataraxia-esque situation where possibilities converged and Shirou both simultaneously went through Fate Route* (Adjacent), and the Saber Alter route. In FHA, the merge and the conflictions it creates aren't inherently a focus like it's forced to be here with a different person showing up and being involved with Shirou with a much more different war. But that was the idea- steal the FHA format because just having a second show up means that Shirou is still showing clear priority to the first. Which Saber did the opening scene start with? Great question. In this they never discovered that the grail was corrupted in either route, so they do use it for a wish- it is still a monkey's paw (rather than a Beast incarnator) like it was framed as in Zero.

Morgan was the Berserker and servant of Illya in Alter's war. The dynamic between those two from what we know is contradictory. We hear in her extra material that "The name of this Sacred Sword was Altered because it may not come to light that it is the only connection Artoria has with Morgan, for they could not understand each other up to the very end." But then the my room dialogue years later with Morgan added to FGO they said this about them: "She's my older sister, she's like a mother to me, and she's like a mirror image of myself. She may need to curse people to survive, but she is likely better suited to be king than me. After all, she was far more beloved to all of Britain than I ever was." Went closer to the second interpretation for this and Artoria is a bit jealous that Alter got both Morgan and Britain to some degree.

Vortigern as a weapon is fanon. The Vile King Vortigern in Garden of Avalon is said to swallow even the light of Excalibur (Black holes are literally the only thing that can swallow light... who else does those? He's a former Beast VII of an era humanity got past y'all) and this was making that a weapon because I wanted a Caliburn equivalent for Shirou to trace for Alter against Berserker that fit Alter more. That's what I came up with. I used the scythe from Vortigern's FGO attack animations as the design for an irrelevant plot point.

Shirou in Saber Alter route instead of tracing Avalon for Saber, utilized his Reality Marble (Due to some UBW elements) to provide cover fire for Alter to get close enough to win with Excalibur. Team effort and all that jazz. Fate Route Gilgamesh battle for regular Artoria.

There was supposed to be a scene with Rin where she explained what she though was going on in more depth, showing the name debate ending, and showing both Artoria's being horribly offended she wouldn't claim which was real when they both remember her vividly being involved in their first time with Shirou. That scene would have been too long though for so little plot progression, so instead got recapped in the next one.

Idea was for Alter to be very dominant in bed and always on top and regular to be more submissive, but they teach each other to enjoy the opposite as much as their prior preference- and Shirou really benefits from remembering learning both roles. The two were meant to also push each other to be more depraved- Alter never rimmed before that first time, but did because she had to one-up what Artoria did with the balls. Double Avalon with Double Saber is also infinite libido so...

Leave Kudos, subscribe to me and this fic to not miss future prompt responses. 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- that often isn't actually the one I like the best annoyingly. Next chapter is Rin getting screwed over by not knowing how to use the internet.