Hello everyone. This is like my third fanfic.

This idea had been in my head and I had to get it out.

So this is a complete AU. In this universe some guys can get pregnant (If is not your thing nobody is forcing you to read it)

So Jackson is Stiles' older brother that's the main idea.

This is more like a teaser. If someone like it i will continue it.

And of course i want to thank to "whereismydamnangel" from tumblr who corrected this.

So if you like it let me know. See ya :)

Pairings/Characters: Stiles Stilinski & Jackson Whittemore (Brothers relationship) Lydia Martin/Jackson Whittemore, Scott McCall/Stiles Stilinski, Allison Argent/Scott McCall, Vernon Boyd/Erica Reyes, Melissa McCall/Sheriff Stilinski, Matt Daehler/Stiles Stilinski (past/mentions)

Overprotective brother

Chapter 1: Introduction

I'm Jackson Whittemore Stilinski. I'm seventeen years old; a junior at Beacon Hill's high school.

I'm the co-captain of the lacrosse team. Older son of the sheriff.

I 'm popular. Everyone in the school worships the floor that I walk on.

I have the most amazing and smart girlfriend. The perfect best friend

People think that I am a self-centered asshole. I couldn't care less about that.

Maybe I care about myself a lot. But not as much as rumours say.

Gossip people don't know that there is someone in my life that I care about more than anyone else in the world but I never show it. There's no need to. He knows I'll do anything for him.

I know what you are thinking when I say "he". I'm not gay. I said I have a girlfriend.

I'm talking about my little brother Genim 'Stiles' Stilinski. He is one year younger than me. You are probably wondering why I am so protective of him.

Well I don't really remember asking for a brother. I wasn't even 2 years old when he was born.

Growing up, we never get along. When I was five and he was four, I drew on the walls of his bedroom and accused him. He is very hyper so no one believed him.

But all went to hell when our mom got sick with cancer. My dad had just been promoted to sheriff. I was ten back then.

We took it hard. Mom ended in a hospital and my dad was becoming a work addict.

One afternoon in the hospital my mom said to me; "When I'm gone please take care of your brother". It sounds cliché but I took her word.

Since that moment, I swore I was going to take care of Genim.

After mom died, dad was never home. We spent our time with babysitters. Little Genim asked to be called Stiles. Because his name was mom's favorite.

He was diagnosed with Attention Deficit Hyperactivy Disorder at the age of ten. I was to young back then to understand what that meant. So my dad told me, "Stiles is different. He can't focus on anything so he is going to have to take pill to be better." But still, dad was never home. He never took care of Stiles. I was the one watching over him. I was there for his first panic attack. Not dad.

When I was thirteen years old I met Danny. We became best friends almost immediately. He was the only one besides my brother who could stand my crappy attitude.

Stiles also met a friend. Her name was Erica and they spent all their time together. I'm not gonna lie; that made me jealous. I was no longer the center of my brother's attention. I tough she was gonna be his first girlfriend. God I was so oblivious back then.

Stiles came out a week before turning thirteen. He was always hung up on Danny. I couldn't believe I was so oblivious. Stiles had a major crush on my best friend.

In my freshman year of high school, I met Lydia. The most perfect girl. Since then, we have been together.

In my sophomore year, Stiles got his first boyfriend. Matt was his name, I think. He was always smiling. But that happiness did not last long. Matt was cheating on my brother with some bitch whose name I don't remember.

Stiles was devastated. So I did what any big brother would do. I kicked that asshole's ass.

Before the school year ended a new kid move to town.

He and my brother clicked right away. Scott McCall was Stiles' age.

They became friends in a flash.

I hated that guy in the moment I met him. Something told me that that guy was bad news. But it made Stiles happy. I might act like douche half of the time, but if my brother is happy, I can ignore those toughs.

Stiles only talked about "Scott is so perfect and he so good in lacrosse." He was crushing on that idiot.

When the summer came, Scott asked Stiles on a date. My life couldn't get any better. Note the sarcasm. It was a nightmare. I spared the big brother talk that time and decide to ignore my hate of McCall for Stiles' sake. The summer was perfect for him.

When my junior year came, I was elected to be co-captain of the lacrosse team. McCall took the other place. I decided to ignore my hate because my brother was happy with that moron.

But like I said before; happiness did not lasted long.

McCall broke up with Stiles with no reason. Well that idiot was still in the closet. So nobody found out about the break up.

A week later Lydia force me to go to a double date with her new friend. Some girl who moved from San Francisco.

Things got interesting when that girl showed up with McCall. That idiot broke my little brother's heart for some slut. I had to contain my anger all night.

I dislocate McCall's shoulder in practice on the next day. But it was unavoidable to see the crushed look on Stiles' face when he saw how McCall was all PDA with the new girl.

A month passed after that. Stiles was always putting on a happy face.

But he was getting sick. Throwing up every morning. He was losing his appetite.

Dad and I were worried. After losing mom we were always afraid.

"I'm okay. Probably just the flu or some bug," Stiles told me when I suggested that he should see a doctor.

A week later he was in the same state. I talked to my girlfriend; she knows about everything

"I don't know those are symptoms of the flu that or…" she cut herself off

"What Lydia. Or what ?" I asked in panic.

"Pregnancy. Those are symptoms of pregnancy." I stayed shocked. My little brother could not be pregnant.

"That is impossible. He hasn't been with anyone in more than a month since McCall broke up with him." I considered the possibility. Call me old fashioned but I really believe than my brother was still innocent.

"Jackson the signs start to appear at the fourth week."

And that's how I did the math. There was a possibility that my brother was pregnant.

I rushed home right way in my Porsche- my Grandparents gift. Not before I went past the pharmacy to get a pregnancy test.

Nobody was home. So I started to prepare myself on how to convince Stiles to take the test.

I decided to dig around in the bathroom trash can. Then I found my worst nightmare wrapped in toilet paper was a positive pregnancy test.

My little brother was having McCall's kid.

In that moment I decided that I was going support and protect my brother even more and I am going to kill Scott McCall.