Fairy tail  is owned by Hiro Mashima

Author p.o.v
You are y/n dragneel a big brother towards to natsu dragneel that you are friendly and determined that you always been close to your little sister that you did'nt know that she have a huge crush towards you that she loves you as a lover.

You are in the guild as you are drinking with cana

Y/n: cana how much do i you?

Cana: mmm well y/n kun mmm well you did kind help out here at the guild i suppose i can give that on the house

Y/n: woah really?

Cana: yeah

Y/n: thanks cana san

Cana: no problem . Hey i need to ask you

Y/n: sure what is it?

Cana: what is going on with your sister?

Y/n: mm what do you mean?

Cana: well she been a bit you know too close with you

Y/n: mmm well i am not sure but she is sometimes energetic and happy to see me

Cana: mmmm ok

You smile as finish drinking that you heard the a commotion coming towards the guild

Y/n: hm?

Then the door opens as you see a fighting bewteen a few people

???: you take that back!

???: no i am not you fiery hothead!

???: argh shut up you ice jerk!

You see that it is your sister fighting with gray as you sigh and walk towards them

Y/n: ah what happen this time?

Natsu: he say bad things about personality

Gray: oh i am sorry alright how should i know your a freaking tomboy instead being like a girl

Natsu: shut up!

They both started to battle it out again that you sigh

Y/n: how long did they battle?

Erza: a while

Lucy: mhm

Y/n: mhm i see.

You see that they kept fighting until you make a bit angry sigh as your hand started to make a flame as you make an angry face

Y/n: alright i think that's enough

You started to punch gray face as he felt the impact of your flame fist as he flew out of the guild as your sister surprise of what she see

Natsu: o-o-onii chan

Y/n: that's what you get when you mess with my little sister.

Natsu: onii chan i am sorry

Y/n: ahh its ok natsu chan just don't get argue like that ok

She blushes and nods as you see that the guild is damage and a mess

Cana: well then all of you have to clean and repair the mess

Y/n: sure cana san natsu chan

Natsu: hai onii chan

Y/n: you have to take responisbility of cleaning this up

Natsu: yes onii chan

Y/n: alright

You and natsu started to helped others fixing the guild that you did'nt notice as natsu blushes as getting near by you

Natsu mind: onii chan is so cool always protect me and love me mmm i can't wait to tell him

Timeline skip
After a while that they have finish reparing the guild as you and natsu heading back home

Y/n: so next time don't damage other properties ok

Natsu: alright onii chan

Y/n: mmm

You smile at her as natsu smiles while blush more that they arrived at their home as you about to head your room as natsu pull your hand

Y/n: mm yes imouto?

Natsu: onii chan i need to tell you something

Y/n:sure

She smiles as pull you to her room that you blush of what she did.

Y/n: natsu?

Natsu: mmm onii chan you have been kind and always protect me

Y/n: yeah i mean that what big brothers are for

Natsu: well y/n kun i want to say that i ..i have feelings for you not just a sibling feeling as in i love you onii chan more than a brother!

You blush of what she said that she blushes

Y/n: when do you have this feeling?

Natsu: ever since i was young onii chan..i know you might think its weird but i really do love you and i am going to be your lover!

She pounce on you while she kiss you on the lips as both of them fell on the bed

Y/n: mmmmm~

Natsu: mmmmm~

They both kisses more passionately on the bed while they slowly went apart from the kiss.

Y/n: ahh n-natsu chan

Natsu: mmm onii chan~

She smile as slowly look at you and blush that she slowly take off her clothes and help you take off your clothes as they both are naked

Y/n: oh my

Natsu: onii chan~

She sees your member is hard that she is on top of you while licking your member as seeing her womanhood

Y/n: ahhhhh

Natsu: mmmm~~

She begin to suck your member while you begin to lick her womanhood while both of them moan

Y/n: mmmmm imouto mmm~

Natsu: mmmmm~

Natsu started to suck faster and a bit harder that you lick her womanhood fast

Y/n: mmmmmm your so good imouto~! Mmm

Natsu mind: mmmm onii chan so good too~

They both moan loudly as natsu sucks more faster onto your member that you moan more and grins begin to lick faster on her womanhood

Y/n: ahhh~ mmm~~

Natsu: mmmmm~~~

She moans loudly as feeling  your tongue lick her womanhood faster

Y/n: mmmmm~~mmm~~

Natsu: mmmm~~

They both moans loudly as started to feel their parts stared to twitching

Y/n: mmmm ahh if you keep sucking like that i might cum

Natsu went apart and look at you

Natsu: me too~

She continue sucking while you moan loudly as both of them couldn't handle it as they cum at the same time.

Y/n:ahhhh

Natsu: mmmmm~~

They both panted and look at each other as natsu laid on the bed as your member rise

Y/n: you ready.

She nodded as you slid your member into her womanhood that she moans painfully

Y/n: you ok imouto?

Natsu: yes i am fine its just hurt a bit but  i will be ok you can move.

You nodded as slowly thrust into her while she moan softly

Natsu: ahhh onii chan~~

Y/n: mmmm imouto~

You thrust into her as she moans more that she wraps her arms around your neck

Y/n: ahhh natsu chan ahh

Natsu: mmmm~ onii chan i can feel you~

Y/n: i know~~

You thrusted a bit faster into her while she moans loudly as you kiss her on the lips as she kiss back

Y/n: mmmm~~

Natsu: mmmmm~~

they both in intimate making out while you thrusted faster and harder in her as you can hear her moans into the kiss

Y/n: mmmmmm~~

Natsu: mmmmmmmm~~!

They both went apart from the kiss as you look at her as she looks back while you thrusted harder and faster as feeling her insides are a bit tight

Y/n: ahhh imouto your insides are so tight ahh

Natsu: because i love you so much onii chan~!

You thrusted even more that you felt it around your member as you felt your member twitching

Y/n: ahhhh natsu chan i feel like i am going to cum

Natsu: ahhhhh me too~~

you make one final thrusted into her as  you cum in her she moans  and cums on your member.

They both panted as you laid beside her

Y/n: wow so wow

Natsu: mhm it is

Y/n: i love you natsu chan

Natsu: i love you too y/n kun

They both started to make out with each other. That they both are now not just brother and sister as they are lovers till the end.

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 Natsu145 go check him out so yeah i think that's it for today and i will see you guys later peace out.