Cortana one night snuck into y/n's room

Cortana: *whispers* wake up y/n

Y/n: *wakes up* Cortana what are you

Cortana: *kisses y/n on the lips* i know you have a crush on me

*FLASKBACK*

Master chief: Cortana meet my brother y/n. Y/n meet my partner Cortana

Cortana: hello child im Cortana your brother has told me all about you

Y/n: n...nice to meet you

*timeskip*

Master chief: y/n we need to talk

Y/n: look john i

Master chief: what do you think of Cortana....you like her don't you

Y/n: im only 16

Master chief: so what do you like about her wel besides her figure

Y/n: her blue hair cause i think it looks good on a chick like how many chicks have you seen besides Cortana having blue hair

Master chief: good point

*FLASHBACK ENDS*

Cortana: and before you say anything I love you too so now y/n time for your girlfriend and future wife to please you *takes his dick out and puts it in my mouth*

Y/n: *moans and puts a hand on Cortana's head*

Cortana: come on y/n fuck my slutty throat

Y/n: *starts facefucking her*

Cortana: GLRK HURK GAGKH HLUK GLUGHK GLUG GHURK *gurgles, chokes and gags*

Y/n: *thrust faster* im gonna cum *cums down her throat while holding her head down to the base*

Cortana: HURLK *squirms as y/n holds my head down for 5 minutes* fuck  that was so hot the way you held my head down and prevented me from breathing turned me on. Now how about i give you a lap dance *shakes her ass and moves her hip but is pinned to bed by y/n* ooooo now rip a hole in my pant crotch don't worry i have spares and im not wearing a bra and panties just for you and just for tonight

Y/n: *rips a hole in her pants*

Cortana: now fuck me

Y/n: *starts roughly fucking her pussy*

Cortana: OH YES YES Y/N IM YOUR BITCH IM YOUR SLUT IM YOUR WHORE IM YOUR FUCK DOLL FUCK ME FUCK ME FUCK ME FUCK ME RAVAGEMY TIGHT PUSSY YOU'RE SO BIG I LOVE IT SO MUCH

y/n: *thrust*

Cortana: spank me I've been a bad girl

Y/n: *spanks her ass and gropes her tits* i love you Cortana

Cortana: i love you too babe

1 hour later

Cortana: IM GONNA CUM

Y/n: CORTANA!!!!!!

Cortana: Y/N!!!!!!

Y/n pulled out came on Cortana's face and timeskip to a few years later y/n is 20 years old and Cortana is 23 became the new master chief

???: y/n old friend

Y/n: it's been a long time Thel 'Vadam

Then an alien steps from the shadows

Arbiter: y/n my best friend how are things how's the wife

Cortana: im good Arbiter. Babe y/n i have a surprise im pregnant

Y/n: really im gonna be a dad

Cortana: and according to the doctors its a boy so i was thinking

Y/n: john name him john

Arbiter: who's that

Y/n: my brother the first master chief who died in battle 3 years ago

Arbiter: i see and it seems like you have bigger role to file cause im a father myself with a wife and two kids

Y/n: i bet your kids will become the next arbiter

Arbiter: and yours the next master chief

Cortana: *grabs y/n's hands and takes hime to the bedroom and strips him and myself naked* give me another fucking babe

Y/n: *pins Cortana and begins fucking her*

Cortana: YES YES YES FUCK I LOVE YOUR COCK

THE END