Title: Corruption of Fate
Fandom: FSN, Corruption of Champion
Words: 7400
Summary: Shirou and Sakura ends up in Mareth, but instead of saving it, the two are corrupted and conqueror it, with the intent of going home and showing everyone the same pleasures they had achieved.
Tags: Futafication, Underage, Non-consent, Transformation, Furry, Multi-breasts, Corruption, Incest, Pregnancy.
Xxx
Mareth.
Shirou didn't know for how long he and Sakura had been in this crazy world, but he knew it to be at least 3 months.
As it was thanks to a certain someone's existence, he knew how to keep tap of how many days had passed, as time as well as space was weird in this land.
The memory of him and Sakura arriving would never leave his brain, the pink is portal that has appeared in his backyard that had dragged him and Sakura into this world in the first place.
Him waking up and getting a first hand experience of how depraved Mareth was, before he had even learnt is name.
Namely waking up to see an Imp, not that he knew that at the time violating Sakura by thrusting its oversized dick in and out of her mouth.
Shirou had managed to chase in the Imp of just as it dumbed it load in her throat, leaving Sakura to look at him with the most ashamed look as she coughed up the creature's semen. Her face red with shame and pleasure.
He had not blamed her of course.
Just cleaned her up and soon after found safety, a log house they could rest in while trying to figure out what was going on. All the while Shirou tried to ignore the erection in his pants.
But that had not lasted as the two had quickly come to realize that the very air made them hornier and hornier as time went by and to avoid being overcome by it during a fight, they had to relieve themselves.
The two had found relief in each other as Sakura had succumbed to her building lust and so ridden her Senpai's dick for all its precious cum.
She had felt ashamed after that of course, but again Shirou had forgiven her once again. And soon after they continued to have sex with one another.
Though the consequences of their unprotected dilly dallying caught surpassingly quickly up with them, as four days later Sakura's stomach obviously pregnant looking. And with each passing day it continued to grow rapidly, as they learned in this land of Mareth, pregnancy now didn't last very long.
And so, on the ninth day Sakura Matou gave birth to a auburn haired baby girl.
She had not felt happier in her entire life as she breastfed her.
And so, after that the two of them had stuck to butt sex as to avoid another pregnancy, and so after that the two continued to train and grow stronger in this strange world as they raised their daughter, a rather quick process as with every week she grew one year older.
And then she was seven weeks or rather seven years old from what Shirou could tell he and Sakura had finally gotten around to exploring the mountains to try and discover a way home.
And there they had suffered a hard defeat at the hands of a Minotaur Horde, leaving fucked fully of minotaur cum.
Shirou had managed to recover.
But Sakura had ended up pregnant with a minotaur baby, her belly swelling out into an even greater size than the stomach that had contained their daughter.
Meaning that Sakura's breasts got even larger as they filled with even more milk than before, meaning that Shirou had to milk her every evening and morning.
Making her embarrassing moo'd when he did so a few times until she finally gave birth after ten days.
Shirou though had to drag the minotaur out bag and kill it as soon as it had been born it had tried to rape Sakura on the spot not caring that she was his mother.
Only the need to breed filled that monster as soon as it was born.
And so, Shirou put it down.
The family recovered together after that, weeks went by as they mentally recovered from, with Shirou starting to hate this world, but he still wanted to save the people in it.
As he had met people, good people who like extremely sexual had suffered at the hands of the demons.
Which was why as hero he wanted to try and save as many as he could from this tainted world.
And so now he and Sakura was fighting a demon called an Omnibus in the middle of the mountains, the battle was difficult, but thanks to the magic Sakura had learned and his improved sword skills. They were defeating it even as it tried to make them succumb to their lust, Shirou could feel his cock straining against his pants desperate to escape. And he could see that Sakura was panting hard, her breasts leaking milk through her shirt, stains of the Omnibus' cum on the both of them, as it just finished firing cum from its massive horse cock at them.
The smell was intoxicating so Shirou knew they had to finish this quick before it got to much.
But thankfully he saw an opening and stabbed his radiant sword through its stomach.
"Urgh, if I go down, I am taking you with me!" The demon declared and before Shirou could react it stabbed a black looking crystal into its heart before exploding in a pink mist that surrounded Shirou and Sakura which they had to breath in.
And as they did their bodies quickly heated up with even more lust as micro orgasms shook their bodies.
"Let's," Shirou began to speak. "Get home and take of this."
"Let's do that Senpai," Sakura responded as she tried not to put a hand between her legs.
Tried was the operative word as they began to walk, and very quickly the two found themselves outside of their current home. Much faster than it should have taken as space in this place was extremely weird, one only needed to think of a place one had been to before and you could be there in an hour despite how far away it was or how big the region was.
"Senpai," Shirou heard Sakura say, and he still found it funny how she called them that, despite the two having now had a child together. They were practically married. Though right now she was bend over on the ground, ass in the air, skirt lifted and her drenched pussy on display. "I need you inside of me." Her voice was begging, and Shirou found himself unable to resist her words or the sight of her cunt begging for his cock.
At the moment he didn't care what this would result in.
And besides.
They could handle having a child or two more.
And so Shirou finally freed his cock(Though was it just him or did it look bigger?) and went over to Sakura where he placed his hands on her hips and thrusted his cock into her pussy.
And Shirou almost came on the spot as he had forgotten how warm and tight it felt. "Fuck Sakura you're so hot!" Shirou growled as he started moving, pulling most of his dick in and out of Sakura's love tunnel.
"And your cock is so thick Senpai, fuck me, make me your dirty slut," Sakura moaned as Shirou started to go faster, and it did not take long for him to cum shooting his load straight into Sakura's hungry womb.
The orgasm lasted longer and felt bigger than any previous one, and as he pulled it out of Sakura's cunt he saw that it was still fully erect throbbing, and did in fact look to be an inch longer than before.
"Hmm, Senpai I think I am still not-," Sakura's voice came to a stop as she turned her head and saw that her beloved Senpai was still rock hard. "I Guess I am not the only not who is still not satisfied, let me take care of that for… you… Senpai…" Sakura spoke seductively as she crawled over to Shirou and mounted him.
Shirou did not resist Sakura's advance as her cum filled cunt was re-wrapped around his dick and started to move up and down his shaft, while Shirou thrusted with the movement.
And they did that over and over again, Shirou letting orgasm after orgasm into Sakura while she came with him. But seemingly no many times they came, their lust did not shrink it seemingly only grew, but they did not question it as they were too in the throes of passion.
Now as for why that was the case?
Well it was due to the Omnibus they had just fought earlier, who in her last act of defiance had sacrificed herself to cast a curse on the two, to be consumed by lust until they became just like her.
An Omnibus.
Which was why every time Shirou came inside of Sakura's delectable pussy his cock grew longer and fatter, his balls also swelling in size.
And why every time their crotches met, the color of their skin started to slowly change, starting from each resptinve crithc and crepping up their bodies, and down their legs.
Sakura's skin was becoming a light blue turquoise color, while Shirou's skin was becoming a slightly dark red tone.
Their hair too was changing color, both of them becoming more and more silver haired with each thrust.
And with the fifth total orgasm. Shirou's cock was now long enough to penetrate through Sakura's cervix and enter her cum filled womb.
The climax she achieved was greater than ever, making her already growing ass, thighs, clit and breast swell a little faster.
Shirou's fingers sunk into the now much plusher ass of Sakura as he went locked his lips around one of her leaking nipples and started sucking as such a divine liquid could not go to waste.
"Senpai that is for the baby," Sakura just admonished him as she pat his head, she was in pure bliss as he suckled on her tit.
And so they kept fucking, cuming together.
And as Shirou drank from Sakura's tit his body started to change, though since Sakura's milk was only now a much diluted version of true Succubi Milk its effect was much less extreme, but Shirou was drinking almost an endless amount from Sakura's now never ending bosom.
His ass was swelling, a little by little, getting rounder, more perky as his hips increased in with slowly his thighs getting a little more meaty, the face a little more feminine as all body hair was shed.
And behind his swelling testicles, each sack now easily filling palm each as now each sack contained twice as many nuts. A change was occurring.
And so as Shirou's tenth total orgasm was achieved he felt a hot liquid splash against his stomach.
Which got his notice, he pulled away from Sakura's now massive breasts twice the size of her head, and looked down to see sticking out from where her clit should be was now a tiny two inch penis twithing as it just had it first orgasm, its small load now caking Shirou's stomach.
"Sakura, you just grew a penis," Shirou stated with a giggle like it was the funniest thing he had ever seen and not something to be frightened and concerned about.
"Penis?" She asked as she looked past her cum swollen belly to see the tiny blue cock her clit her had turned into. "I did grow a dick and your all red Senpai." Sakura stated as she finally took notice of her Senpai's changed skin and hair color.
"And you're blue," Shirou said back, finding the blue color beautiful on Sakura and not alien at all.
"That I am," Sakura merely said as she cupped her blue breasts, her nipples now a dark blue color.
"So do you wanna try it out?" Shirou said as he pulled his now sixteen inch cock out of Sakura's bloated pussy, the cock still at half-mast but now just as red as the rest of Shirou, with the crown being just a darker red.
"Can I?" She asked as her hand went down to touch her currently ballless cock. And she felt a shiver go down her spine at the touch.
"Anything for you Sakura," Shirou said as he went into the same positon that Sakura had, though he expected to fuck his ass with her new cock.
Sakura instead choose option two as she saw just below Shirou's rosebud. a glistening virgin slit.
A pussy.
It seemed that her Senpai was more of she than a he now.
"I love you Shirou," Sakura said as she stood up with shaky legs and took hold of Shirou's now much larger posterior.
Had it always been this big? Sakura thought but she quickly changed mind tracks as her brand-new cock touched Shirou's new pussy and parted the lips.
"Ah!" They both shouted at the same time as they came from each of their new genitalia.
"Sakura where did you do?" Shirou's asked in confusion as he felt his chest tingle a little, not noticing it swelling out a little.
"I put my cock in your brand new cunt Senpai," Sakura explained as she thrust her now four inch cock fully into Shirou's virgin folds. And she moaned as she felt a new part of herself be filled-
Is this how Sakura feels when I fucked her? If so, I love having a pussy. Shirou thought to herself not even questioning how the new female genitalia had grown in. Or even why she was suddnely referring to herself in female pronouns it just made sense to Shirou to do so.
And that was because the curse was now progressing nicely. It fueled their corruption and their corruption fueled it, creating an infinite loop with each climax filling their 'lust meter' back up to full.
And now it was Sakura's turn to breed her Senpai, and she was going so with gusto, her newly grown and sensitive dick cuming quickly and filling Shirou's brand new fertile womb with cum, as she came rapidly.
Shirou body becoming more and more female with each orgasm, her dark red chest chest swlling into proper breasts that squished against the ground, the growing alongside even more dark red nipples, becoming as fat and huge, and oh so fuckable.
Their new true size would not be known until she got up.
And as for Sakura her cock grew as well inside of Shirou's no longer virgin pussy, growing to 6, 8, 10, 12, 14, 16, 18 inches and more quickly as she quickly penetrated Shirou's brand new cervix, and stretched out her womb, the head getting broader and flatter as it did. As Sakura's cock changed going from a human flavor to a much more animalistic one.
As at the base of her cock a sheath formed as her own now nut sack quickly grew into existence, contained in a much leathery pouch than Shirou's quadruple pair.
Yes her cock had become a fat and long bull cock seen on the minotaur's a few weeks ago, with Sakura now regretting having that child killed, as it would be oh so fun to have it skull fuck Shirou while she bred her pussy.
Well they could always get more, though this time the child would be made on their terms, with Shirou being pregnant alongside her of course.
Sakura imagined her udders even bigger, and filled with more milk.
And as Sakura went to touch her breasts, she became aware of something beneath her breasts.
She looked down and she noticed that Shirou wasn't the only one growing four of something.
She too was growing a second pair of something.
Namely in her case it was breasts.
Sakura now had four milked filled udders, and she came as she realized that, her nuts, cock and breasts growing as she did and soon her lower pair of tits matched her upper perky pair of tits, the bottom pushing the top up so that all standout proudly.
"Hmm," Sakura moaned as she stated to pull her bull cock out of Shirou's well fucked womb and cunt, her cock still erect as all now twenty-four inches, two feet of bull cock slapped against her stomach and stood proudly between each of her four tits. And in front of her face, it was so large that she could easily kiss it.
"Sakura why did you pull, oh wow," Shirou said in amazement as she noticed the changes to Sakura, the four tits, the huge pillar of bull cock that had just been inside of her and stretched her like a condom. Whose content was now slowly spilling out off.
"Wow to you too, Senpai, you look like an amazing woman," Sakura said as she praised her red skinned Senpai, with tits so huge they covered most of her torso, her cock shorter than hers, but even thicker stood out from the massive valley created.
And also much taller now.
They were both taller now actually.
Both of them standing at a good two meters of height.
"Mommy, daddy is that you?" Sakura and Shirou heard a young female voice asked and they turned to see their ten-year-old daughter standing there at the corner of the house, hands between her legs as she had obviously been masturbating to the two of them.
"Yes it is us sweetie," Sakura greeted her flesh and blood kneeling down with her erect cock to pat her head, the girl looking at the member with a flushed face as she smoshed her thighs together. The two parents easily able to smell that their daughter was now fertile and ready for breeding.
And who better introduce her to that concept than her 'daddy'.
Depraved thoughts, that would never have entered their minds before, filled Shirou's and Sakura's mind.
"We've just changed a little, and helping each other feel better, do you wanna feel better two Maya?" Sakura asked.
"I would love to mommy, you looked so happy, I wanna be happy like that too."
"When you just need to be a good girl," Sakura said as Shirou came over picked up her daguther and before the loli could reach Shirou penetrated her pussy with her cock taking her virginity.
The girl shouted in pain for a brief moment, before it turned to moans of pleasure as Shirou started using like Maya like a sex toy.
And soon after the two were spit-roasting their loving daughter with their cocks, an act that would have been inconceivable before, but now felt natural.
And as they did the last of their transformtin happened, cow like horns growing out of Sakura's head wile demonic horns shaped like a crown grew out of Shirou's. A normal succubus tail grew out of Sakura's back while, wings and three tentacle tails grew out of Shirou's back. Tail that quickly find their home in each of their asses.
And with that the hardest orgasm of their life rocketed through Shirou and Sakura's bodies as they crushed the final threshold into demon hood. Their pussies squirted as they bred their daughter, a black crystal falling from each of their pussies and onto the ground.
Lethicite the literal crystallized soul of person that had fallen to demon hood and literal cum it out of their bodies.
Though these thanks to the artifacts that had been implanted into the souls were much more powerful than any other.
And so after the two had finished fuck their daughter into unconsciousness they put her down on the ground and with a smile the two demons feed each other their Lethicite.
And on that day two demon gods were born.
Xxx
Years had passed since the day Shirou and Sakura had fallen to demon hood the two quickly working on building an army to conquer Mareth to find a way home. As they still wanted to go back, though now the two wanted to make Earth just like Mareth, corrupting and showing everyone the joy and pleasure they had achieved together.
And they did so by breeding with everyone and everything, birth child after child, breeding those lovely hermaphrodite children until their spawn was an army that could fight Lethice and her demons.
It took years but they succeeded with their first child being placed on the throne as the new Demon Queen, and it was with that conquest the two had gained the knowledge of creating a portal to go home.
And Shirou and Sakura bit Maya goodbye after a farewell orgy, their womb carrying Maya's child. As a form of parting gift.
And so finally Shirou and Sakura returned home, changed and ready to change Fuyuki as well.
Xxx
Taiga Fujimura was a concerned and worried woman, concerned and worried for the person who she considered a little brother and sometimes even a son, and who was also her student.
Shirou Emiya.
It had been five days since he and Sakura Matou had gone missing, disappeared from thin air.
And she didn't know what to do.
Though there was no way that she was going to believe any of the rumors that her other students were pedling around the school, that the two had decided to run away together and get married.
Sure she could actually imagine Sakura having that fantasy, but Shirou would first invite everybody to the wedding, and saying properly goodbye if he was leaving anywhere.
He was just that kind of guy.
So she was just gonna watch over the house until Shirou returned.
Though as she entered the house, Taiga came to a stop as she heard the sound of voices speaking.
Robbers? She thought as she her hands gripped around the handle of Tora Shinai, ready to give these fools the what for.
But she as she turned the corner and entered the dinning room, she froze as she saw two familiar figures standing in the kitchen going through the kitchen.
"Hmm, some of the things have spoiled, so I guess we weren't gone for long," Shirou spoke, looking much taller as than before, as he stood by Sakura who too was taller, much taller and much more stack than before as they looked at the fridge.
"Well, we have to go shop anyway," Sakura spoke with a much more mature voice, one that actually made Taiga blush a little.
"Shirou, Sakura?" Taiga asked just to make sure and the two turned around, yeah, they looked much older than she had seen them last.
"Sensei?"
"Fuji-nee," Shirou said as the much taller boy came over and hugged her. "I've missed you." And was it her or did his chest feel really soft?
"I… okay so what happened to you two? You've been gone for five days, you just vanished out of thin air."
"Well that is a bit of long story." Shirou began. "Hey, Fuji-nee, do you remember those Light Novels you confiscated from Shinji."
…
"So, a portal appeared in the backyard, you got sent to another world, a fantasy with monsters, demons and demi-humans, exactly like an Isekai, and you spent five years there, then you managed to defeat the Demon Lord, and you found a way to get back home, though only five days had gone by here?" Taiga summarized as Shirou and Sakura finished giving the short version of a long story, though as they did.
Taiga was starting to fell hot and bothered, she could tell that her pussy was aroused and leaking, her nipples hard beneath her bra, as Shirou and Sakura had just gotten ridiculously hot during their time away.
And she was feeling ashamed about that.
"That's about the short of it." Shirou responded.
"Sensei, what happened to Grandfather and Shinji?" Sakura asked.
"He actually had a heart attack after you left and died, and as for Shinji? He just left, and said that the house was yours."
"Oh."
"Yeah, sorry for you loss."
"Its fine, I just… wanted to have a talk with him," Sakura said, and Taiga could tell that maybe things had not been happy in the Matou Household. "Well, let me go and buy things for dinner. You two go and talk more."
Sakura stated as she stood up and left the house.
"Well, did something happen between the two of you? It's technically been five years."
"We got married." That caused Taiga to choke on the air.
"Really?"
"Yeah, we even had a kid." Now that shocked Taiga. "Though we had to leave her behind, as she could not come with."
"I… am sorry." Taiga said apologetically.
"Its okay Fuji-nee, Mareth is a… very weird place, things worked very differently, like people grow up faster, and also pregnancies," Shirou explained, as he went into detail that Mareth was a much more… sexual place, where three genders existed.
Taiga blushed heavily and felt herself getting even more aroused as that hit her fetish. "They had potions so that you could have both?"
"Yep," Shirou hung on that note as he looked at Taiga. "Which what happened to me and Sakura?"
Huh?
"Huh?" Taiga asked as it didn't click what Shirou had just said.
"Let me show you," Shirou said as he stood and walked around the table to stand in front of Taiga, her eyes looked on his crotch.
And then there was glitch in reality, and where Shirou had been, now stood and Amazonian of a woman, with long muscular legs thick thighs, skin a dark red color, huge breasts were on her chest, capped with even redder nipples. Hair a silver color, that had pure black horns sticking out.
And in front of her face bobbed a huge cock, far longer and thicker than any cock Taiga had seen before, crimson like the rest of the woman, and pre-cum dripped from it and onto the floor.
And behind her Taiga could see black, bat-like wings.
"Shirou?" She asked as she looked at the cock with hunger, her now gushing pussy was getting to much.
"It's me Fuji-nee, I just transformed a little, but I am so much happier now, and I want to make you just as happy," The Omnibus spoke as she stroked her fat dong in front of one of the people she loved. A burst of thick pre-cum spurted out of the cock and onto Taiga's face.
Which she instantly licked away, and she let deep guttural moan as she ate it, her pussy clenching around a nonexistent cock as she came from the taste of Shirou's pre-cum alone.
"Do you want more Fuji-nee? You can have as much as you want?" Shirou asked as she pressed her cock against Taiga's lips, who on instinct opened her mouth further, letting more of the juicy cock get into her mouth.
Meaning more delicious pre-cum hit her taste buds, making the school teacher moan as she started giving her brother/son/student a blow job, she just couldn't stop herself.
She wanted to taste more.
"Hmm, Fuji-nee, you mouth is so great," Shirou moaned a finger inside of her nipple as the milk started to flow. "And for that you deserve a reward." At that Shirou came blasting her thick gunk down her sister's throat making Taiga choke a little on the thick jelly like cum as she tried to drink all of it. It spilled down her chin and throat, and onto her clothes.
And she kept drinking and drinking and drinking, as Shirou's orgasm just didn't seem to stop, it was a never-ending flow of semen into her stomach.
And it was almost was, as last time Shirou had measured her output she had cum about a liter in a single climax.
And that liter was being dumbed into Taiga's stomach to be fuel for the curse she was now afflicted with, yes the original curse was still active and now exuded from Sakura and Shirou like a corruptive aura infecting any living organism nearby.
With it now be focused all on Taiga and such as she pulled away from the cock after it finished dumbing all of its how stuff into stomach.
Her crotch felt a lot tighter than normal as if something was straining against her jeans.
"Why so tight?" She asked in frustration, as she went and unbuckled her pants, pulling them and her panties down. Which resulted in the sound of meat slapping against meat, as Taiga noticed the extra weight that was now attached to her crotch.
It was a cock.
A large throbbing ten-inch cock that was standing straight up.
But it was not a human cock, no it was an animalist cock.
A cat's cock with sheath and barbs along the length.
"I have a cock?" Taiga asked in shock.
"And it's a cute kitty one too," Shirou said as she went to touch it, making Taiga moan hard as it was sensitive to the touch.
A premature orgasm, made cum spurt all over her hand, which she brought up and slowly licked of. "And tasty too." Shirou said with a smile. "Now let's take that for a ride."
Taiga didn't have time to object before she felt her brand new cock be sheathed inside what she easily guessed was Shirou's futa pussy.
It hadn't even clicked in Taiga's head Shirou had one now, but considering that she now had big beautiful breasts, it made sense she would have a vagina too.
A vagina that was milking her for all it was worth.
Or at least trying to as she didn't just cum.
She felt her brand new member try to achieve release, but something Shirou was doing was stopping her from cuming tick cummies into her cunny.
"Shirou, I need to cum!"
"Not yet, Fuji-nee, first drink some milk," Shirou said as she pressed one of her nipples into Taiga's face, and she did push it away just accepted it and began to drink the divine breast milk. Something that was just as good as the cum, but different.
So she drank it like a kitten, and speaking of kitten. As she drank it, Taiga began to change further as her breasts expanded in size, tightening her shirt. Pushing it up as beneath her breasts another pair of breasts started to grow in swelling quickly, their nipples exposed to the air as the clothes started to get torn. And then they had finished growing another pair grew, mathicng the previous breasts in terms of size and then they were done a fourth pair swelled into existence on Taiga's stomach giving her eight titties in total.
And soon after her body became even more cat like as a tail grew from her back bone, brown fur spread over her body covering all of it, making her eight breasts the only thing not covered in her hair. Cat ears grew on top of her head, as the previous ears vanished, leaving only her face remaining. But that that did not stay unchanged forever.
As quickly Taiga's face became fully feline.
Making her a proper cat girl.
After being satisfied with the physical changes to Taiga, went and changed their position so that the now transformed woman could mount her and achieve her orgasm, the orgasm that would change her into a demon cat girl, as she like Sakura and Shirou would cum her soul out.
"Cum, cum, cum," Was all Taiga could say or even think at the moment as thrusted her cock in and out of Shirou's cunt.
"Yes Fuji-nee you can cum." Shirou whispered in Taiga's ear and it was that that did it.
As Taiga Fujimura let out a deep guttural moan as she finally came, gallons of semen flowed from Taiga's back up nuts, the heavy orbs pumped and pumped thick kitty cum into Shirou's pussy. At the same time her pussy squirted with such force that a black gemstone was expelled.
And after that she slumped exhaustively against Shirou.
Though she was quickly brought back to full awareness, as Taiga felt something massive enter her pussy, breakthrough her cervix and enter her womb in motion and start to fuck her.
Taiga turned her head to see Sakura behind, her skin blue, with four large milk leaking teats adorning her chest.
"Sorry Sensei, but I saw your kitty all exposed, and I just couldn't help myself," Sakura said as the sight of it as she returned from her shopping had been irresistible. "Hmm, I am gonna put kitten in your Sensei," Sakura stated as she started to breed Taiga, the demonic cat girl reinvigorated by the stretching of her womb and started to fill Shirou up again.
And with the corruption and transformation Taiga Fujimura that the corruption of Fuyuki began.
The Aura of the Three Demons spread through the city, the insidious curse that had become Shirou and Sakura's favorite method of widespread and slow corruption began its work as it mixed with the mana in air.
Which the people breathed in and out on a daily basis, the changes were subtle at first, with people just get more, and more horny.
Then inhibitions started to lower, with people being more affectionate in public, kissing and stuff like that at all ages, then the masturbation started with it not being unusual to see a young woman masturbating.
Then the sex started happening, and with the sex came the changes where people started to grow extra sexual organs. Women grow cock, one or more, of all shapes and sizes. While men's chests inflated into breasts, and behind their balls, vaginas formed as the curse of the Omnibus took hold in people.
The rate of changes varied between people, though those that happened to have more intimate encounters with either Shirou, Sakura or Taiga changed more rapidly.
Such as the eight-year-old boy who Shirou had lured into an alley and transformed into an oppai-loli hermaphrodite, who was now fucking her mother stupid as she had walked in on her ridding her father's cock, whom she had just transformed into a futa herself.
This scenario was happening all over Fuyuki, and in in the span of a month the city was well on its way to becoming a demonic realm ruled by the supreme Omnibuses that were Shirou and Sakura.
As Siblings fucked siblings, and parents fuck their children, and those that lived alone knocked themselves up or got railed by their animals.
Many young girls had learned the feeling of getting knotted by a big dog and loving it.
Though such things did not go unnoticed by the Second Owner of Fuyuki one Rin Tohsaka as she walked through city falling to depravity ignoring the burning sensation of her loins, and the increased amount of tit flesh that was now stretching out her sweater as she tried to look for the source of what this corruption was.
Pussy juice was running down her legs as she the instrument she had constructed pointed her at a location she had not expected to be source of corruptive energies that had mixed with mana, and was now flowing through her Magic Circuits.
The Emiya Household.
Home to the two people who had gone missing for five days a month ago, so wondered if Sakura and Emiya-kun had brought something back, that they were not aware off.
A curse of somekind.
But with determination Rin marched forward, and knocked on the door. Wanting to be polite.
Though then door opened the appearance of the person shocked Rin to her core. "Ah, nee-chan, I was wondering when you were gonna come bye, we've been waiting for you," The very changed Sakura spoke, Rin could see she was much more changed than other people in the city. And she could not take away her eyes from the massive two-foot-long horse cock that was standing erect from her crotch, pre-cum ran down the length.
And from her four tits ran streams of white milk down her blue skin. And onto the very pregnant belly posssed.
"You have?" Rin asked in shock, the sight of her very changed sister still a shock to her.
"Yes," Sakura responded with a voice that Rin just noticed sounded like sex itself. "Please cum inside."
At that word, Rin's pussy squirted a jet of girl cum onto the floor, as if her body had just been given a command by a goddess, and it had to obey.
And Rin obeyed and followed inside the house, the smell of sex hitting her in full force and she came again, as they entered the main living room of the house hold, where she could see the formerly male Shirou Emiya, now seemingly Futanari Demon Goddess Thrust his cock in and out of Blue-haired elf-looking woman, her skin tan, and from her crotch she could see three cock happily pulsating firing out robes of cum.
"Hey Tohsaka," Shirou greeted her. "Glad you could join our new family," She spoke as she patted her own gravid stomach. "Just let Sakura be done with you."
"Wah?" Was all the off tilter magus could say before she was lifted up by the now much taller Sakura, stronger than her by a long margin as she then impaled by Sakura's huge bestial cock.
Rin instantly came around the member as Sakura started to fuck her in reverse nelson, she could see the bulge the cock was making her stomach, stretch out skin like a condom as the humongous cock went in and out between her enlarged breasts.
"Here Nee-san, this is just for you," Sakura said as she with a bit of telekinesis lifted a mixture from the table she had been making, and put in Rin's mouth. "Drink." Sakura commanded and Rin found herself unable to disobey once again as she used like a sextoy.
She drank the mixture, it was warm and spicy, the warmth, when quickly spread over her entire body and Rin watched as her body started to transformed quickly as her remaining clothes were shredded by Sakura. Dark fur spread over her body, as her feet became paws, a dog tail grew from her back as breasts increased in size once more and was quickly joined by even more tits, eight in total though they were each a size smaller than the pair that was above, but still large and something most women would die to have. Her face elongated into a muzzle as it became truly canine, and Sakura moaned as she felt her sister's pussy change from a human cunt, to a canine cookie pussy.
Though with her powers, Sakura prevented the cock that would have grown from coming in as her sister did not deserve such a thing, no she would just get a huge clit-cock instead. As now Rin was their fuck pet, only good for breeding and milking.
Sakura smiled as her revenge was realized, sure she didn't blame her sister for being sent to the Matou's, she just hated her for ignoring her existence for almost ten years earth years.
Xxx
As she was summoned Saber hoped that her new Master would win her the Grail, but the second she fully was materialized and was about to ask who her master, she knew something was wrong.
As her entire body froze up, as she stared into the eyes of a purple purple haired snake woman, and she truly meant snake woman, her lower body was that of a snakes, though big enough to match her well endowed upper torso, gigantic breasts adonred that chest making Saber blush, her arms were also covered in scales(She tried to ignore the inhuman cock it was stroking), and her hair, it wasn't just purple but also formed into multiple snake heads.
She was pretty sure this was a fellow Servant namely the monster known as the Gorgon.
And she currently had her frozen with her eyes, though she could see the area she was in. And it was a den debauchery as she could see men, woman, animals and children all engage in intercourse with each other, with many have the sexual characteristics of both.
Saber ashamedly could feel her cock starting to get erect as she looked at…
Was that Illyasviel? She thought in shock as she looked at the small Einzbern Homunculus that was clearly Kiritsugu and Irisviel's daughter, though interms of height she looked like she had not grown and inch since she had seen her ten years ago, as the Grail had informed her the years was 2004.
Though now the girl was jerking a cock off that was larger than herself, with humongous tits that she squirted milk as she covered herself in a shower of cum.
Saber knew her dick was fully erect now and dripping with need as was her pussy, as whatever that was in the air was making her more and more aroused.
"Saber by this command Seal strip, by this Command Seal Saber do not resist us," She heard the voice of the one who had probably summoned her speak, and Saber felt her cock lunch a robe of pre-cum at the sexy voice that dripped with lust. As she involuntarily dismissed her clothing, leaving her fully naked.
And soon after she saw two individuals walk into view.
Demons.
They were demons.
And they both had command seals, on their hands though the red one had spent two, which meat it was her master.
"Wow Sempai, she already has such a nice cock," The blue one spoke. The monstrous horse cock between her leg's throbbing with need and excitement.
"That she does Sakura, but we came make it better can't we Saber," Her Master spoke as she stroked her cock. And
And Saber could only feel fear as the red demoness went behind her while Gorgon continued to paralyze her body with her Mystic Eyes.
And then that fear started to turn to pleasure as her Master showed her cock up her virginal pussy, raping her, she was raping her.
King Arthur.
But why did it feel so good?
Saber thought to herself as she felt her Master's huge cock stretch her stomach, creating a huge bulge in her womb.
And she fucked her, and fucked her, and Saber moaned like a whore as she begged her to go harder, as she had never experienced pleasure like this before. Her cock cuming over and over again, though she was to delirious to notice it getting longer with every orgasm, that her nuts were swelling as the color of her human cock got more crimson, as the skin moved downward as ridges started to form along the length.
But she did notice that every time her master pumped fat loads of cum into her pussy, she watched as her formerly non-existent breasts started to expand, swelling and growing until they were thick head-sized globes of tit flesh. The breasts though weren't the only things expanding as her body got larger as it now started to grow up, thighs got thicker, legs got longer, and her ass would have most definitely made very knight of the Round Table, stay just at the hope of getting it to sandwich their dick. Her head a crown of draconic scales as, her eyes became yellow, thick tail grew from her behind as draconic wings exploded from her back.
As Saber came down from her latest orgasmic high, she saw that the blue demon girl, called Sakura was slamming her hips up and down her cock while Gorgon did the same to the other one.
For yes, Arturia Pendragon now had two cocks instead of one, two large draconic cocks, that had fat knots at the bottom that the two fat bottom girls tried to get into their pussies.
Saber loved this.
Forget the Grail, this was the true happiness she had sought for so long, she just wished she could have shared with Camelot.
Those were Saber's last remaining human thoughts as the largest climax she had achieved so far, ravaged her body and from her cunt a large black crystal fell out as the one proud king of knights succumbed to demon hood.
Though in that moment, the Throne of Heroes, record that soul and so a new instance of Arturia Pendragon was created.
And so, Sakura and Shirou smiled at each other, as their plan to use the Grail to corrupt the entire Earth was going smoothly.
Xxx
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