Crazy trouble with love

Jack the Ripper and Shirou

Series: Fate Stay

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Shirou was busy cooking in the kitchen as he looked at the now dull knife. 'Yep. Need to get another one.'

He put it away while looking around the drawers for a new one. And found it in the form of a small dagger with a black hilt and some long dried blood on the blade.

"Alright, I don't think this is gonna work, but I should clean it." he turned the hot water on and started washing the blood off the edge. As he started to wash the edge of the blade with a washcloth, he nicked his own hand and caused some blood to drop onto the dagger, which glowed in a light similar to how Saber appeared into the world.

Shirou looked confused as a magic circle started to form as he dropped the dagger onto the ground. He stepped back as he saw a figure slowly rise up from the circle and grew nervous.

"...are you my father?" A white haired girl with yellow eyes, bandaged hands, two black boots, and covered in a tattered cloak appeared with two dagger, similar to the blade on the ground, in each hand.

Shirou blinked in confusion and got his voice back. "Are you….a servant?"

"Yes….Assassin in Black." She nodded while looking at him. "Are you my father?"

"Why do you ask that?"

She cocked her head slightly. "Are you...not my Father?" She moved her daggers closer to Shirou while a dark mist appeared.

"Gah!" he stumbled back. "E-Easy now, let's just try and understand what's going on."

The mist disappeared. "You are father?"

"Well, I don't know about that…"

She looked at him with a glare. "Are you my father?"

"What makes you say that in the first place?"

"..." She looked confused. "Father?"

'Alright, this is getting us nowhere.' he tapped his chin. "Do you think you can tell me your real name?"

"...Jacky…" She said. "Jacky the Ripper."

He blinked and his jaw dropped. "D-Do you mean…..Jack the Ripper?"

"Jack?" She looked confused. "Who's he?"

"Uh, on second thought, you wait right here. I'll be right back." he turned and walked out of the kitchen nervously.

"Shirou?" Asked Saber as her master came in the dining room. "You look like you have seen a ghost."

"Uh, Saber? I think I summoned another servant." he spoke getting straight to the point.

"What?" She looked at him confused. "Was it another version of you?"

"No, she's a little girl who's calling me her father for some reason."

"Oh, what is her name?" she asked sipping some tea.

"She called herself Jacky the Ripper."

Saber looked at him with wide eyes while spitting the tea onto Shirou. "WHAT!"

"AH! HOT!" he cried trying to wipe it off.

"THE BUTCHER OF WHITECHAPEL!" She yelled in fear. "YOU SUMMONED HER?!"

Shirou winced and used the apron he had on to wipe the tea. "Well I wasn't entirely sure so I came for your opinion on the situation."

Saber calmed down slightly. "Well did she call you master or something else?"

"I just said she called me father." he deadpanned.

"Oh crap." She said. "Not good."

"Well if she really is the serial killer, I agree." he nodded while not noticing the small figure walking towards him.

"Father?" She said while holding some of Shirou's cooking. "Can I have some?"

"Oh!" he jumped in surprise. "Uh, sure, go ahead."

Jacky smiled while sitting down at the table. "Thank you father….Aunty?" She looked at Saber when she said that.

"Uh, yes, I'm your aunt." spoke Saber with a nervous sweat and grabbed Shirou by the shoulder. "Wait right here, we need to talk alone."

"Ok." She said while eating the bowl of rice while Saber and Shirou walked out of the room.

"Shirou, you need to listen closely. Just go along with this and let her call you father."

"Why? Even if she is a murderer, what would happen if I don't just call the police?" Shirou asked as Saber glared at her master.

"First off, Jack the Ripper was never caught, and you really think they're gonna believe she's the murderer when that happened over a hundred years ago?"

"Oh right." He blushed. "Forgot about that."

"Second, she was living on the streets and tried finding a mother in the local prostitutes, and do you know what happened when they pushed her away?"

"Um...crap." Shirou said with a pale expression.

"She has killed numerous people, and if she doesn't find a parental figure that can keep her in line, what do you think will happen?"

"...she will...kill them…" He nervously paled. 'Crap.'

"Exactly, so unless something changes, she's here and you need to be a father to her."

As Shirou was about to say more, Jacky walked in. "Father?"

"Uh, y-yes Jacky?" he spoke nervously.

"I'm tired…" She looked at him with a cute face. "Story please."

"A story?"

"Yes." Jacky said while hugging Shirou. "Please father."

Shirou looked confused while Saber nodded him while gesturing him to get on with it.

She hugged Shirou more. "Father."

"Ok. Just let go a little." Shirou nervously said.

"Why?" she asked tilting her head.

"Well. I can't tell you a story if I'm dead right?" He chuckled. 'That and you're crushing my ribs.'

"Why would I kill father, unless…." her gaze darkened while reaching for one of her daggers.

"Wait!" Shirou yelled before hugging her. "Stop. Please….Jacky."

"...father." Jacky said dropping the dagger. "I love you father!"

"I...love you too." he tried smiling while rubbing her head.

Jacky looked at Shirou confused. "Where's Mother?"

"Uh, mother?" he gulped while looking at Saber in help.

"She died." Saber said nervously. "From typhoid fever."

Jacky looked sad hearing that and hugged Shirou tighter.

"But she said she loved you!" Shirou said while rubbing her head. 'Why did I just say that?'

"R-Really?" asked Jacky who looked close to tears.

"Yes. She loved you." Shirou smiled. "And so does Aunty Saber and me."

She sniffled and kept the hug while Shirou lead her towards his room.

"Father…" She sniffled. "Please don't leave me."

"I won't Jacky." Shirou said while getting a book. "Alice in wonderland? Or Cinderella?"

"The first one."

"Excellent choice." He smiled while opening the book. "So Jacky. Did you like the food?"

"It was yummy."

Shirou smiled before reading. Jacky snuggled under the sheets to get comfy.

"Father." Jacky smiled while listening carefully to the story.

(Later after the story)

Shirou looked at the now sleeping girl as she used a pillow like a lifeline and smiled. He reached down and rubbed her head before quietly leaving the room.

"Mmmm...father." Jacky moaned in her sleep as Shirou smiled though internally he was nervous.

'It's weird to have two servants, especially with one being a serial killer who thinks I'm her father.' He thought before closing the door.

(Next morning)

"I'm heading out Saber!" Shirou called out while running out the door, since he was late...again. 'Crap!'

He tried raising his knees up to go faster, but noticed a shadow following him. 'What the?' He thought before running through the gates, and right into Rin. "Gah!"

"AH!" She called out before falling on the floor. "SHIROU! What the hell!?"

"Sorry!" he spoke standing up while helping Rin to her feet. "I didn't see you there."

"That's fine." She said dusting her clothes off. "Just don't tell anyone that I made a cute squeak."

"Sure thing."

"Um Shirou? Why is there a mist around you?" She asked confused.

Shirou looked around him and panicked seeing the mist. 'Shit!'

"Father." Jacky said wearing a school uniform...with a little blood on the skirt, while pointing to Rin. "Is this my grandma?"

"Grandma?!" Rin glared while Shirou held her back while whispering something in her ear.

"Rin, please try not to get her upset."

"Why?"

"She's Jack the Ripper." Shirou whispered as Rin's face paled.

"W-What!"

"Father." Jacky said as the bell for second period rang. "What's that bell for? Is it Big Ben's cousin?"

"No Jacky, but why are you here? And where did that blood come from?"

"To protect Father." She said with pride. "And a slut tried to attack you with some poisoned chocolate so…" She smiled a little. "I killed her with my blades~"

"WHAT!" cried both kids.

"Is father angry?" She frowned. "Would killing that blue haired boy surmise?"

"You mean Shinji?"

"Yes." Jacky nodded. "Can I?"

"NO!"

"Aw…" She pouted.

"And you should head back home, now." spoke Shirou.

Jacky frowned before disappearing in a fog of dark London smog, only to reappear on the roof where a certain Mage was sleeping. "...die~"

"Shirou! Why is Jack the Ripper here?" whispered Rin as they headed to class.

"I accidentally nicked my hand on one of her daggers while cooking dinner yesterday." He whispered back. "I don't know why I had it in my house."

"Well what are you gonna do about her?"

"I don't know." He said. "But...she's a sweet child, when not killing anyone."

"Please tell me you're not planning on keeping her."

"In fact I am." He glared. "If I don't she'll continue her killing spree here!"

"Well there is a way to keep the killing from happening and get rid of her."

"...if it's killing her then no way in hell!" He glared darkly.

"Fine, keep her around, but as her 'father' you need to keep her calm." she spoke in a firm tone.

Shirou nodded before walking into the class as Shinji's body came crashing onto the school grounds below.

"Done." smiled Jacky clapping her hands as she already heard kids screaming at seeing the dead body.

"JACKY!" Yelled Shirou in anger as Jacky flinched from the tone.

"Uh oh…"

(After classes)

Jacky as currently kneeling on the ground with an angry Shirou glaring. "Sorry Father."

"Jacky, I said NOT to kill Shinji!"

"But he looked like a rapist." She yelled back. "And I hate rapists and prostitutes!"

"Still, what if someone saw you?"

"...kill the-"

"No! You don't kill them!" he spoke with a firm tone. "I don't want you to kill anyone!"

"Even if they harm you Father?" She asked while with a worried expression. "Would you let them kill you?! My father!"

Shirou sighed. "You just let me deal with people like that."

"...like that purple hair prostitute?" She asked before getting yelled at again.

"SHE'S NOT A PROSTITUTE!"

Jacky looked ready to cry before yelling. "AND YOU'RE NOT A MAN YOU CUTE JACKASS! AWAW!" Only to cover her mouth while crying.

"Wait, what did you just say?"

Jacky blushed before vanishing, leaving some tears on the ground.

Shirou turn and started running all over the place to try and find her. Heck he even checked the girls locker room….and got a black eye for that.

"Ow...JACKY! WHERE ARE YOU?!" He yelled.

"Shirou, please tell me she didn't vanish." spoke Rin walking over while looking nervous.

"She did and what if she gets into trouble?!" He panicked while looked underneath Rin's skirt...and got punched in the other eye for that.

"YOU PERVERT!" she cried holding her fist with a growl.

"Sorry sorry!" Shirou said raising his hands in defense, only to hear some crying in a nearby closet.

"F...Father…"

Shirou and Rin towards it with the male slowly walking towards it.

"...father...hates...me.." Jacky cried while holding the Alice in Wonderland book Shirou read to her. "...Father…." she saw the door open and cried harder seeing Shirou standing there.

"Jacky." Shirou said with concern. "I don't hate you, you just got me angry a little from the 'Sakura is a prostitute' comment"."

"You said what!" Rin yelled. "That was my sister!"

Shirou ignored her and pulled Jacky into a hug. "Look, just trust me on this. Let me worry about you, it's a dad's job to watch out for their kids, alright?"

Jacky sniffled. "Yes...Shir-Father!" She blushed at the slip up.

"Now come on, let's get you home."

Jacky smiled before both were engulfed in smog leaving Rin looking miffed.

(Shirou's house)

Both reappeared on the ground, with Jacky on Shirou's back. "We're home Father."

"Well let's get you inside and I'll get supper started."

"Ok." She smiled getting off of Shirou and running inside the house.

'This might take a while to get use to.' he thought walking inside.

"Welcome home master." Saber smiled while training. "Did Jacky cause any trouble?"

"Just killed some people, Aunty Saber." Jacky smiled.

Saber dropped the wooden sword in shock. "W...WHAT!"

"I already talked to her." spoke Shirou hearing Saber's cry.

Jacky looked down and hugged Saber. "Sorry Aunty Artoria." She said saying Saber's true name.

Saber looked surprised while returning the hug. "It's ok...just don't kill without reason ok?"

"Alright!"

"Good girl." She smiled while rubbing her head as Shirou popped his head from the kitchen door.

"So double servings for you or regular?" He asked holding a frying pan and a cooking pot in each hand.

"Double."

"Same...father." Jacky blushed as her stomach growled like a London steam train.

"Alright, dinner should be done soon."

(A few minutes later)

"Wow!" Jacky said in awe at the large bowl of miso soup. "Look at it all….Father is so cool!"

"Heh, thanks." he smiled at the praise.

"It's true!" Saber said while gulping down her LARGE bowl of soup. "Your cooking is always great Shirou."

He smiled while Jacky was already dunking her head to drink up her own bowl.

"Yum! Hic~"

"Shirou….did you use the green bottle or the purple one." Saber glared.

"Um..the purple one."

"That's the sake!" Saber yelled as Jacky started taking off her clothes. "JACKY!"

"Hic~ Father is so girly hic~" Jacky smiled while revealing her naked body to Shirou. "So cute~"

"JACKY!" they cried out with Shirou covering his eyes and Saber trying to get her clothes back on.

"Father...hic." She smiled at him. "So handsome~ perfect father...hic."

"Hold still!" Saber yelled while trying to get Jacky's cloths back on with no avail. "Put these back on right now!"

"No." She said while hugging Shirou. "I love Father….hic~"

"Jacky!" Shirou blushed. "Come on and just get dressed."

Jacky didn't listen as she kissed his lips. "I love father Shirou hic~"

His jaw dropped while Saber pulled her off the boy and started getting her clothes back on.

"Shirou!" Saber said getting Jacky's panties on. "Are you ok?"

"Y-Yes." He blushed as Saber finished getting the girls bra on.

"Hic. Shirou~" she smiled before falling asleep on Saber's lap. "Zzzzz"

"Uh, Saber? How old is Jacky if she's wearing a bra?" asked Shirou while splashing some cold water on his face from the sink.

"Well...about…" She thought. "Maybe...15? If you take out the two hundred years off it."

"Oh god, and hearing her call me father is really awkward." he sweatdrop.

"And this coming from the master with a servant from 1023 AD?" She deadpanned.

"Would you suddenly see her as a lover if she started coming onto you and called you mother?" he retorted.

"...yes. Mordred was the same." She blushed. "And she was my daughter."

"Wait…..you….and your daughter?"

"Yes. Married." She blushed. "It was so memorable."

Shirou didn't say anything and just calmly walked out.

"Father…" Jacky said while sleeping on Saber's lap.

(Two days later)

Well everything was awkward, especially when Jacky remembered the event and hid in the closet for two days only coming out for food and using the restroom. Shirou tried everything to get her out, only for her to remain inside the closet and blushing each time he opened the doors. Currently Shirou was sleeping on the bed, not knowing that Jacky was coming closer to him with a blush.

'I can't believe I said that…..but if father is sleeping, it's fine….right?' She thought before carefully crawling onto Shirou and laying next to his face, before kissing his lips.

'Mmm.' Shirou moaned while hugging the now blushing girl.

'Father likes it!' she thought while carefully wrapping her arms around his neck.

"Mmm….Saber...stop eating the rice…." He said dreaming of Saber at an all you can eat buffet.

Jacky frowned hearing that and pulled back from the kiss before moving under the blanket.

"Mmmmm….what?" Shirou said waking up. "What?" He looked under the blankets and saw Jacky licking his unzipped cock. "JACKY!?"

Jacky looked up and smiled at the shocked boy. "Hi Father Shirou~"

"What are you doing!?" he whispered.

"Licking your cock, like in the books Aunty Saber owns." She smiled. "That and I saw all kinds of men get the same treatment from prostitutes."

Shirou frowned. "You're not a prostitute and not all men are like the ones you know."

Jacky looked confused while pouting. "Really? Men don't act like dogs?"

"Well…...some do, but I'm not one of them."

"...so you don't like it?" She frowned. 'Father hates me….kill!'

"It's not that...it's just I'm shocked at seeing a sweet child like you doing this." Shirou blushed.

"So….father doesn't hate this?"

"No." He smiled. "I think it's cute."

Jacky looked at him before moving up and kissed him. "Shirou~"

He blushed and moved to get her off, but groaned as he felt her moving her hand up and down his slowly hardening cock.

"Shirou...your cock is growing...can I cut it off?" She asked since she never done this before.

"N-No!" Shirou moaned in fear. "Don't cut it!"

"Oh, then what do I do with it?" she asked while moving her hand faster.

"You…." He moaned. "Lick it then put it in your pussy!"

Jacky looked confused as she continued to rub Shirou's cock. "So...baby's come from cocks?"

"Well it's a little more….complicated than that!" he groaned.

"...Shirou." She said licking his tip. "...I want to be a mother...please."

Shirou looked wide eyed as his sperm covered her face. "What?!"

Jacky was surprised and licked some of the seed around her mouth. "Salty."

"Why do you want to be a m-mother?!"

"To experience what mother felt like when she had me." Jacky said with a sad smile.

Shirou felt bad and rubbed her head.

"Shirou….please make me a mother." She blushed while Shirou kissed her forehead.

"Well why don't we start off slow and then we decide?" he offered.

Jacky nodded. "Anything for you….Father Shirou."

"Maybe just call me Shirou."

"Yes….Shirou." She smiled while looking at him. "So….what is first?"

"Well, first you lay on your back." he blushed.

Jacky moved until she was on her back. "I...I'm ready Shirou…"

He blushed and leaned down while spreading her legs and saw some juices from her folds. "Wait, where are your panties?"

"I took them off earlier." She blushed. "Is it wrong?"

"No." He said while licking her pussy. "You're doing fine Jacky."

Jacky moaned as she felt her own folds getting licked by Shirou's tongue. "Mmmmmm~"

Shirou continued to lick the pussy before groping her B-cup breasts lightly. 'Wow..so salty.'

"Ah!" she let out a gasp feeling the hands rub and squeeze her chest.

"Like it Jacky?" He asked while his dick got harder from seeing her wet folds. "Does this make you wet?"

"W...wet?" she moaned out in confusion.

"Yes." He said. "And," he licked his hand. "It tastes delicious."

She blushed while seeing Shirou's cock standing completely tall.

"Like it Jacky?" He blushed. 'Please don't panic.'

"What happens now?" she asked while staring at the cock.

"Well…" He blushed. "If you want children." He said before getting a small nod.

"Please I want children!"

"Well just be warned, this is gonna hurt." he warned crawling over her with his cock near her folds.

"If it's with you Shirou." She smiled. "Then I can bear it."

Shirou grinned as he slowly pushed his staff into her folds, which started to bleed.

"AH!" She cried feeling the dick stretching her folds. "SHIROU!"

"Don't worry, I'm not moving." he whispered rubbing her cheek and brushing away any tears.

"Shirou...thank you," she sniffled. "Thank you for not hating me."

"I'd never hate you." he smiled kissing her on the forehead.

"Even after killing two people?" She asked. "Or when I stole your shirt and used it as a blanket?"

"Even after those." he smiled rubbing her head.

Jacky smiled as she felt the pain leaving her snatch. "Please give me your children."

He nodded and slowly pulled back and pushed back inside.

"Mmm. I feel strange Shirou." Jacky moaned while feeling her snatch tightening against Shirou's cock.

"That's what pleasure is like." he groaned as he moved back and forth in her.

"Pleasure…" She asked while her hips started shaking. "Like when I kill someone?

"Uh, no." he sweatdrop.

"Oh.." She blushed before moaning louder. "AHHH~"

"Want me to go faster?"

Jacky nodded while hugging Shirou against her chest. "More Shirou~"

Shirou smiled before thrusting faster into her folds. "You're fucking tight!"

"Ah! More!" she moaned trying to move her hips with his.

"Yes!" He moaned while his cock started twitching in her womb. "I'll give you it all!"

"Shirou! I'm feeling even weirder!" she moaned.

"I know!" He said while kissing her lips, as his cock twitched even faster. "Just a few more, gha, thrusts and you will have children Jacky."

"Give me them all!" she cried out.

"JACKY!" He yelled as his semen poured into her womb. "I LOVE YOU!"

"I LOVE YOU!" she moaned out while hugging him close and felt more of the hot sperm shooting inside her.

"AAHH!"

Both cried in unison as they became connected. The atmosphere was perfect...until Saber accidentally came in.

"Master Shirou! The….." She blushed as they were still in each others love holes. "Never mind…."

"What?"

"Well….Sakura is looking for you." She blushed while looking away. 'So ackward."

"Here in the middle of the night?"

"Yes." She blushed. "Something about reproduction and 'Rider'?"

"Uh, I won't even ask."

"Should I get a pastor?" She chuckled. "Or maybe a priest?"

"Oh ha ha."

"...I don't mind getting married." Jacky blushed.

"Easy there, like I said, let's take it slow."

"Ok...father~" she smiled rubbing her stomach.

(One year later)

Shirou was walking into the house and saw Jacky wearing an apron, naked, while holding a small box.

"Welcome back Shirou."

"Hey Jacky." he smiled with a blush.

"So Shirou." She blushed. "I have a gift for you." She held the box in front of Shirou. "Please open it."

"Sure thing." he took it and slowly opened the top. And blushed seeing a pink pregnancy test with a positive sign on it.

"Like it….Father~"

He held it up and looked between it and a smiling Jacky before doing the logical thing.

Fainting into her chest.

"Looks like Shirou liked it~" she smiled while rubbing his head.