Fucking with the Grail

Shirou finally opened his eyes as the brightness subsided and looked around.

He was in middle of flower field and the sky is dark with clouds.

The flowers are beautiful and the cool breeze made him feel free.

A sweet voice whispered into his ears asking"I hope you like the weather.I never encountered someone who likes dark clouds rather than pure sunny day.Iam the guardian of the grail. Now come forth and ask your wish".

Shirou turned his head and found his target.

It was a beautiful woman,almost etheral looking with pure white hair and a intricate dress.

He immediately recognized her as Justeaze von einzbern and that she is wearing dress of heaven.

Shirou smiled at her saying"Nice to finally meet you justeaze or should i say angra mainyu?"

She looked shocked for a second but instead smiled at him.Her angelic smile was instantly replaced by a much cruel one as the woman changed instantly.

Her entire attire became pitch black and the face was much more cruel as if its looking down on everything.

She clapped at him asking"Congratulations.Its my first time seeing a person who came here knowing what to expect.So what do you want?.I can grant any wish possible".

She dissapeared and appeared behind him enclosing him in a sensual hug asking"I can make you rich and powerful.I can even revive your dead loved ones.I have the power to literally make anything you ask for".

Shirou felt heat rising up at the close proximity as he was tempted by her offers.But he remembered his original plan as he started laughing at her.

Angra mainyu was confused at that as shirou suddenly grabbed her by throat and threw her away from him.

She looked visibly angered as shirou already guessed the reason why.He sneered at her asking"I didnt thought that grail was this charitable.Stop with the lies.I know that you cant grant shit".

She glared at him wanting to kill the human but she cant do anything at this point.

This was shirou's primary plan.He asked Gilgamash for a relic.

A repic soo powerful that it can guard the user's mental and spiritual state.Only a minute number of gods can actually break it and angra mainyu is not one of them.

Actually gil's treasure would be useless against him inside the grail but there exists a tiny bit of problem for angra.

No servant died in the war.

That means he is just a container with no fluids inside right now and he cant even counter attack since he is fused with grail and the grail has some rules.

One being that it cant do anything on its own.

The entire grail war is just a farce.It was never a wish granting device.There are some exceptions but its just a one way trip to ROOT.Even thats a farce since counter guardians guard it.So the moment you step inside,you will be killed by alaya's dogs.

Shirou stood before the like a king and asked"I have some questions and you answer it correctly or my team outside will completely dismantle the grail making sure to erase your soul forever".

Angra mainyu looked irritated since he cant even tell if he is saying the truth.All his powers mainly focused around corrupting others,but his mind is a complete blank state for hers.Due to no mana from dead servants,she cant even conjure illusions to mess with him.

She decided to bide her time and nodded her as shirou said"Are you justeaze or angra mainyu?".

She answered him saying"Iam an amalgamation of all lesser grails that died in war.Despite angra mainyu's influence.Both the egos mixed together perfectly.So you can say that iam both of them.I have memories of all of them".

Shirou smiled at the news as he guess was right.The being is not entirely angra mainyu.If the grail is evil itself then earth would have been long fucked.

Shirou knelt down to her and gently lifted her face saying"You know.You are really a beauty from up close.I think its a shame to destroy you".

The black grail's eyes shined with idea as she guessed the man's intent.

She can sense his eyes viewing her body lustfully as she can see a bulge forming in his pants.

She decided to use this chance and smiled sexily asking"Well thank you that winner.You can have this body if you want.Just ask the word".

Shirou realized her plan and instantly slapped her face making her fall on ground.He grabbed her by hair and lifted her to his face saying"This is your last warning grail.Dont tempt me.The moment you try to play games is the moment you become dust.I will take what i want so you better cooperate".

The grail knew she has no chance but didnt completely gave up thinking that the sex may change him.

He clicked his fingers making both of their clothes disappear as the grail smiled lustfully seeing his figure.May be she can enjoy the encounter.

He pointed at his dick as the grail crawled like a dog and began to use her mouth to service him.

Shirou moaned at her technique since she has enough experience of hundreds of women.Its didnt hell that she is incredibly sexy like a femme fatale.

Making the evil itself kneel infront of him and service him made shirou feel like a king as he happily enjoyed her mouth.

It was useless to resist as it didnt take much longer for him to cum into her mouth due to her techniques.

The grail smiled and drank him cum to the last drop feeling some mana from it.It decided to atleast gather some mana for a single illusion that can completely tempt him.She already have an idea based on her experience at why exactly that tempts him.

After drinking his cum,she gently laid back and spread her legs for him as if invite him.

Shirou was about to fuck her but remembered something very important.

The grail was confused at his actions as he removed a black ball and put it as their side and now propped himself at her entrance.

The grail was confused at his actions as she sensed that it was nothing dangerous but shirou asked her to touch it.

The grail still didnt understand his actions and carefully touched the ball as she sensed what was inside it.

Her signature cruel smile came back to her face as she teased shirou saying"You sir are completely evil".

Shirou laughed at her while slowly inserting himself into her saying"I should be honoured getting complimented as evil from the god of evil himself.So how about putting up a performance".

The grail smiled and was now completely into the sex.She was a being that never personally experienced any emotions so feeling her pussy filled completely by a lower tier being made her somehow wet.

At her full power she can kill him in a blink of eye,but somehow she was beginning to slightly like him and she didnt know why.His plan with the ball was also extremely evil and naughty.

Because the black ball contained a large worm.A same worm that contained the last soul of zouken.

It was a gift from shirou.

Just think of it.What will be his reaction when he saw his crush/live that he tried to reunite for 500 years getting fucked by a useless boy and the fact that he cant do anything.

Basically shirou was cuckolding zouken while fucking the grail,who is the mirror image of justeaze.

Shrieking can be heard from the ball as it only made shirou more energetic at fucking the grail.

It was a nop notch experience as einzberm sure know who to make good sex dolls.

The grail was now completely moaning in pleasure at all the new sensations she was feeling.

She technically didnt have any reproductive organs like womb.But she now wished she had one to completely feel the sex.

Shirou was extremely happy since she only had an imaginary barrier in place of womb so that means that means he can be as rough as he wants without fearing damage.

"Fuck...yes..More..It feels soo good"

He laughed seeing the ahegao face on the grail as he started piledriving into her pussy.Using sex was also one of his plan because all the women that got sacrificed for grails newer had any active sex life.They had the knowledge but not enough pratical experience.

and he was pretty sure angra mainyu was also virgin.He never commited any crimes.He was just branded as such by people.

So the grail is practically a sexually frustrated virgin before him,a person that not only had sexual powers but also hella experience.

He grabbed her boobs roughly using them as support while he never stopped fucking into her core.

All the while the black ball was rolling back and forth shrieking in anger.

Shirou was almost close as grail felt his cock about to release and suddenly clamped her walls more tightly around him.

This made his loose his focus as he started cumming deep into her.

The grail's eyes rolled back completely as hwr body arched back feeling his cum hit her walls.After feeling full she suddenly pushed shirou aside.

The grail suddenly removed herself from his grasp and closed her pussy as she walked towards the ball.

She then opened her hole as enormous amount of thick mixed cum started falling on the black ball containing zouken's soul.

Shirou whistled at her cruelness despite having justeaze's memories as he dont have a single cent of sympathy for zouken.He actually deserved it.

The grail and shirou suddenly jerked in surprise as the ball cracked completely as it completely lost it color and became a clear glass ball.

It seems like poor zouken got himself killed due to pure anger and frustration.

They both started laughing at the worm as the grail suddenly felt two arms hugging her from behind.

She felt that his dick still havent gone down as she bent down for him obediently.

/

Its been a year since the grail and shirou started fucking eachother.

It started as mutual sex but quickly became one sided when the grail realized the problem.

As time went on,the pleasure from sex was too much for her to handle as her mind slowly broke.

She even ran away from him but he always caught her and fucked her to coma again and again.

She forgot the count after a 1000 as her body broke completely under him.

Since it was a special dimension inside grail,they are only spiritual bodies.Meaning they dont need to tear for any human defects like food,water and excretion.

So we have a boy with unlimited stamina and sexual powers v/s an amalgamation of sexually frustrated women with a sexy body.

Shirou smiled seeing that the grail broke completely.

Her body twitched at random intervals trying to **** the cum river inside her from her pussy.

The entire flower land was ruined due to their chase as it was completely spilled with dried cum.

Unknown to shirou,the grail still has some sanity left.

She can simply eject him outside but she waited for right time because every single creampue added mana to her.

Her body was not able to keep up with him but she still has one last move.

Shirou was suddenly caught off guard as black mud started pouring out of black grail's cum stained body as he tried to escape.

But was unable do so as the mud consumed him.

The black grail stood up laughing at his idioticness and felt her power growing rapidly due to corruption.

She can finally feel his body,his soul and even his memories.She suddenly stopped at his memories as sweat formed on her body at his past and also what he is planning.

The mud suddenly stopped moving as it started breaking apart like glass.

Shirou suddenly shot out and attacked the grail.

She tried to escape from the madman but found herself lifted by neck to air as she gasped for air.

Shirou had a maniac smile on his face and he leered on her asking"So the little worm saw my memories.Time to die i guess.I gave you too much time"

She cried and begged him saying"Sorry.Iam extremely sorry.I didnt know your origins.Please dont kill me.I can help you propel your plans much further.You can order me around like a ****".

Shirou got tempted at that.He can simply kill her as the grail will loose its ego,making him in complete control of it.

He honestly dont give any shit about the girls as he can simple recreate them using the grail.

But why kill a woman that is begging to be your ****.

He released her making her drop on ground.

He petted her head like a pet saying"Iam sorry for that.It seems iam still a sucker for sexy women.So i will ask my wish".

The grail already knew what he will ask due to his memories.

It was a wish that she can grant via brute ****.

A wish that is too dangerous.

A wish that will completely change the world.

The wish got activated as a light engulfed both of them.