High School Dxd  is owned by Ichiei Ishibumi and Miyama - Zero

Author p.o.v
You are a little brother towards to kuroka and a brother towards to koneko toujou as you are different from your sisters that you are caring and helpful around others even you are a devil and a nekometa as well that you did'nt know that your older sister have a huge and insane crush towards you even so that she have been quietly obessive for loving you more than a brother as she will kill anyone that will stand in her way of her love.

You are walking back towards your house with your sister koneko as both returning from school

Y/n: well koneko chan how did you do in school..

Koneko: mmm is alright except issei interupts the meeting again..with his stupidity

Y/n: ahh i see well i don't want anything happen to my sister

Koneko: don't worry y/n nii san i will take care of myself..

Y/n: sure you are.

Koneko: grrr

You smile a bit as they both arrive at your household

Y/n: ohayo nee san we are home

Then they both suddenly see an older woman walking towards you that they both know who is their older sister kuroka

Kuroka: nyan y/n kun!

She hugs you as you blush a bit while koneko sigh a bit

Koneko: onee chan..stop it your embarressing

Kuroka: no i am not

Y/n: mm ok nee san

Kuroka: so how is both of your day

Koneko: fine..i guess..

Y/n: well mine ok a bit except some girls talk to me

Kuroka: really now?

She secretly clenches her fist as making a fake smile

Y/n: yeah..

Kuroka: i see well you two rest up a while ok i cook us some fish

Y/n: ok

Koneko: very well

You and koneko went to each of their rooms while kuroka went back to the kitchen as she chops some veggies

Kuroka: nyan~ so some girls talk to my y/n kun eh~ well then...

She chops furiously to the vegetables in half and in pieces

Kuroka: they have another thing coming....they will be excuted~ and then y/n kun and i will be together~ nyan~ but as well i couldn't hurt koneko chan..she is our sister...well i love my family even love my otouto~ so much~...we will see soon~ hahahaha~

Timeline skip

the next day as you went to school as usual with your sister as not knowing your older sister started to follow you around school

Kuroka mind: ara~ara~ otouto so cute~ nyan~ i can't wait for him~ to be with me hold me~ mate me~ ahh~~ i couldn't wait for so long~~ nyan~~ nyan~ just wait..wait for all those girls...to be talking...

She disappeared in the shadows while you walk around the hall with your sister

koneko: y/n nii san

Y/n: hai koneko chan

Koneko; can you tell onee chan that i am not coming back home tonight i have to head to issei house with the others

Y/n: mmm alright but if anything happens just call me ok

Koneko; mhm

Koneko walk to her class while you about to walk to your class as a few girls stop you that they talk to you

Girl 1: hi y/n kun

Girl 2: mm you look cute today

Girl 3: yeah

Y/n: well girls..ahm i am sorry to try to talk but i have to head to class..

Girl 1: aww ok

girl 2: bye cutie~

Girl 3: bye

You walk away  as the girls sigh happily as seeing you but as a certain neko sees everything

Kuroka: how dare....they...try to even flirt to my y/n kun!....how dare they....nyan nyan he is mine only mine!

Kuroka started to follow them as they are walking towards to the toilet

Kuroka: nyan~ bad girls get punish for flirting with my kitty y/n kun!

Girl 1: nani?!

Kuroka started to slash one of them that slices her head

Girl 2: aww crazy woman!

Kuroka: nyan~ i am crazy woman..but i am crazy for y/n kun~!

She slashes into her gut that girl cough up blood and fell down as the other one try to run

Kuroka: ah ah ah~

She grabs the girl from behind and stab her with her claws that making the girl stop moving and fell

Kuroka; nyan~ now time for the surprise at home~ see you soon y/n kun~

She disappeared with the bodies.

Timeline skip

As you are walking back home alone that you arrive at your household and walked in

Y/n: ohayo onee chan i am home...ahm koneko chan is not with me because...she..is sleeping..at friend house...

You started to sniff around the house that you sense it is blood

Y/n: eh?..b-blood? Where is it coming from..

You started to sniff more as found the scent and follows it towards your room

Y/n: what is in here...

You slowly open the door that you did'nt see as your room is dark that you on the light as you eyes widden that seeing the girls that you talk have been slaughtered

y/n: w w what is this?!....

???: nyan~ do you like it~ y/n~ kun~

You recognize the voice that it is your older sister

Y/n: nee chan?

Kuroka: nyan~ you like it i did this for us~

Y/n: what do you mean?

Kuroka: well i did this because~ i love you so much more than a brother~ nyan~

Y/n: w what...onee chan...your insane...

Kuroka: yes i am~ insane for you~ hahaha~~!!

You started to turn around and run off to the door but it is too late that you felt she have knocked you from behind

Kuroka: nyan~~ he is so cute when sleeping~~ now we mate~

She pull you on the bed as start to rip your clothes as she takes off her clothes

Kuroka:nyan~~

She kisses you on the lips as she slowly slids your member into her womanhood as she moans a bit pain while kissing

Kuroka: mmm nya~~~ ah~~yes me and otouto are one~

She slowly bounces on your member while you groan in your sleep

Kuroka: ohhh~~~ yes yes~~~ otouto your are so huge~~ in me~ we meant to be together~~

Kuroka bounces more faster and harder onto your member that you slowly wake up and see kuroka on top of you

Y/n: argh...onee chan...

Kuroka: ahh otouto~~ you awake~

y/n: please stop...

Kuroka: nyan~~ never~ nyan~

Y/n: why are you doing this...

Kuroka: nyan~~ ahh i did this because i love you~ and ever since you born that i take care of you~ an fall in love with you even so we cats~ mate with the one we love~

Y/n: argh...

Kuroka bounces even more onto your member that you felt is stared to twitch

Kuroka: ahh~~ i feel it in you want to cum~

Y/n: n-no..

Kuroka: yes~ nyan~

y/n: please get off... nya..

Kuroka: cum in me~~ nyan~

You could'nt hold it as you cum massively in her a she moans and cums on your member

Kuroka: nya~ nya~~ i am so happy~~

Y/n: argh..please onee chan let me go...

Kuroka: nope~ besides~~ otouto you are my mate~ forever~ and i will love you for all eternity~

She kisses you on the lips as you couldn't fight back that you kisses her back and went apart as you heard her whisper onto your ears

Kuroka: otouto~ i love you forver~ and you will always belong to me~ nyan~

She smirks as continue to mate with you till the next day . After a while that she have break you that you have become her mate and husband that you and her have become a family as lovers.

Author note
Hey waddup guys its me here i hope you all enjoy this chapter more than i do and also this request is from Tyltran go check him out so yeah i think that's it for today i am thenick5o and i will see you guys later peace out.