yandere younger sister toko x older brother male reader (lemon)

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You are y/n fukawa an older brother towards to toko fukawa that you are different than her as you are a determine and caring person to anyone espcially your sister that you did'nt know that she have a crazy side that for both reasons as she is a psychopath and a crazy love for you that she will never let anyone touch you.

You are in the hope peak academy that you are looking for clues that you seperate with others as you are walking with your little sister

Toko: say onii chan do we really have to be here?

Y/n: well yes i mean we have to find clues i mean imouto this is not easy.

Toko: b-but you know t-this doesn't feel right..

Y/n: well you have to stay calm ok imouto i am sure we can check out for more clues i mean the more we find clues we can find a way out of here.

You smile at her as you started to walk infront of her. As she look at you from behind as she thinks about you.

Toko mind: onii chan so brave and determined~ mmm as well so dreamy~ mmm~

Toko smirks secretly as she licks her lips

Toko mind: mmm onii chan and i so sweet being together~

You and toko arrived at the library as see some of the students

Y/n: toko you check here while i go ask the others if they find out about new info

Toko: ok..

You walk towards to the rest of them that toko did'nt lose sight on you as she kept looking at you from the distance.

Toko mind : why.. onii chan must you be distance from me...mmm i have to take them out without onii chan knowing mmm than when they are gone me and onii chan can be together!

She smiles in a yandere smile that she grabs a book and started to read while she look you as she licks her lips more.

Toko mind: mmmm~ onii chan~ hehehe don't you worry soon you and i will be together ~ forever and ever as no one will take you away from me~ Hahahaha~

Timeline skip

After a while that you are walking to the mess hall that you still thinking about some stuff while your sister is reading that she secretly looks at you.

Toko: o-onii chan are you ok?

Y/n: mmm?

Toko: y-y-you been thinking lately and you been kinda spaced out for a while.

Y/n: ohh sorry imouto i been thinking about this place and try to find out but you know it did'nt let me give up.

Toko: mmmm

You smile a bit as aoi walk towards you

Aoi: hey y/n kun

Y/n: yeah?

Aoi: i think we may find something that you want to see

Y/n: what is it?

Aoi: well i am not sure but i think you might know.

Y/n: alright lead me the way.

You follow aoi as toko makes a yandere smile

Toko: oh that's it.....they are all goners..onii chan suppose to be with me not with them!...oh they will be gone ha ha ha hahaha!!

Toko smirks as she went towards to where the other students are.

Toko catches up towards you and aoi

Toko: wait ..nii chan.

Y/n: imouto what is it?

Toko: please don't leave me.

Y/n: toko i think you should head back to the mess hall i will be right back.

Toko: no..

Y/n: what ?

Toko: i said no!!

Toko charges towards with a knife that she stabs her in the heart that aoi eyes widden

Aoi: aghh!

Toko: onii chan is mine..

Aoi falls down as she slowly lose breath and died.

Y/n: what the..

Toko: oh onii chan~ you have no idea how i wanted you~

She smirks more as she went behind you and chop your neck as you knock out.

Timeline skip

You slowly wake up as you are in a room as you look around as slowly try to get up but failed as you been chained up.

Y/n: what the?

???: oh you awake~

You turn to the voice as see it is your sister

Y/n: toko! What are you doing?

Toko: i am just showing onii chan my love for you~

Y/n: love? Y-you kill asahina!

Toko: she was going to take you away from me! ...hehehe..but no matter no one is going to take you away from me..

Y/n: argh toko please let me go!

Toko: ohh i am not going to let you go~

Toko slowly takes off her clothes as she slowly went on top of you as slowly take off your clothes.

Toko: we are going to have fun with each other~

Toko smirks as she rubs her womanhood onto your member

Toko: mmm~ onii chan ~

She slowly slids your member into her womanhood

Toko: oghhhh~~ onii chan~~  ahh~

She felt the pain a bit as look at you

Y/n: h-hey stop .

Toko: n-no i want it~ ahh~ i want onii chan~ ahh~

She slowly bounces on your member that she moans softly

Toko: ahhh~~ ahh~ it feels good in me~~ahh~

Y/n: aghh ahh.. i-imouto d-don't ahh.

Toko: ahh~ onii chan~ ahh

Toko bounces a bit faster onto your member while you groan a bit more that she leans closer to your face

Toko: ohh onii chan seeing you like this it make me feel good~

Toko bounces more faster and harder onto your member as she moans loudly while you groan loudly

toko: ahh~~ oghh~~ onii chan~~

Toko kisses you on the lips roughly that you eyes widden as she bounces more roughly

Toko: mmmm~~

Y/n:mmmm.

Toko kisses you even more that she bounces more as you felt her insides start to be tight.

She slowly went apart from the kiss as she bounce more harder

Toko: ahhhh onii chan~

Y/n: aaghhh!

Toko bounces even more that she felt your member started to twitch

Toko: ohhh~ onii chan i feel you going to cum~

Y/n: ahhh ahh p-please get off imouto

Toko: no i won't i want onii chan inside me!

She bounces more as you couldn't hold it that you cum massively into her as she moans loudly as she cums at the same time.

She panted and nuzzle your chest as you panted as well that you look at her.

Toko: mmmm that was good onii chan~

Y/n: ah ah..toko..

Toko: don't worry onii chan i will be with you~ and you will be with as we are one together~

Toko kiss your cheek as she smiles

Toko: and don't worry you will submit to me~ hehe~ now let's continue~ our love nii san~

Y/n: ah..ah.

Toko: i love you~ and your mine~ hehehe~

Toko continue raping you as you groan more that time passes that you slowly accept her to be your lover and she is happy so much that she loves you forever til the end as she have break your mind and you are hers .

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 The789Guy go check that profile out so yeah i think that's it for today i am thenick5o and i will see you guys later peace out.

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