I don't own Supernatual. Only MJ. (:

Chapter One

"Hey lazy. Wake up." Dean Winchester said loudly, throwing a pillow at his younger sister who was trying to sleep.

"Letmealoneshit" MJ "Mary Jane" Winchester mumbled, pulling a blanket back over her head after throwing the extra pillow in Deans direction.

The eldest Winchester shook his head and smirked at his brother.

"No time for that. We got a job" her other brother Sam chided, ripping the blanket away from her.

MJ groaned and huffed as she sat up and opened her eyes, she looked at the clock and shot her brothers a dirty look. "7:30. 7:30 guys?!" She asked grumpily, throwing her feet over the edge of the bed. "I need beauty sleep"

"Yeah you do..." Dean mumbled from the table, opening the laptop.

MJ shot him a dirty look as she stood up to stretch and rub the sleep from her eyes.

They both grinned at her. Dean shook his head and Sam grabbed his clothes.

"The early bird and all that" Sam announced and then walked into the bathroom to get ready before she could get in and use all the hot water. MJ rolled her eyes after him.

"So what kind of job we got dear brother of mine?" MJ asked, grabbing a water from the table and sitting criss cross in the chair by Dean at the table.

"You know, the usual. Women getting murdered. Throat slashed and all that." He said smartly, not even glancing her way.

"How original." she mumbled, taking a swig of her water. "So what's the plan?"

"Plan?" Dean asked, finally taking a moment to look at his sister.

MJ was technically his and Sam's half sister. They had met by pure chance at a random bar in Sioux Falls back a few years ago while MJ was looking for Bobby Singer. She looked every bit like John Winchester and had his attitude as well. At just 22, Mary Jane stood at 5"5 with long dark hair she normally kept in a pony tail, a spray of freckles across her face, pouty lips, olive skin and big green eyes. She wore sweats and a large shirt to bed. but she always slept with shoes. Her reasoning was she always had to be ready at a moments notice. Clothes could be changed but it was harder to run barefoot when something is chasing you.

Smart kid.

Dean felt his gaze soften when he noticed the dark rings under her eyes, the lines around her eyes, the thin line her mouth was pursued in and the way she looked worn out.

They'd be hunting a lot lately without much of a break. MJ was having nightmares, she didn't know the boys knew but her screams for help killed them a little each time but they didn't talk about it. She was much like Dean in that she kept a huge part of herself hidden. Dean knew there were things they'd never know about their sister, and things she'd never know about them. Their life was so crazy that it never helped to talk about the past. Just made things worse.

"You know what MJ, you sit this one out. It's pretty cut and dry. I bet you can even head back to Bobby's if you want. Sam and I can handle it" He said coming to a decision and closing the laptop.

"What!?" She said replied, eyes widening in surprise, stunned almost. "No Dean."

Dean pursued his lips into a thin line identical to the one she wore and wouldn't look at her. "M, you are exhausted and maybe you should take a break. It's not very often we get those.."

Much to Deans surprise, she burst out laughing. "I fail to see humor here" he muttered, leaning back in his chair to study her.

"Dean Winchester," she said shaking her head and leaning forward she met his green eyes with hers, no trace of humor left on her face. "I hunted long before you and Sam came along. I've hunted ghouls, goblins, werewolves. On my own. Don't pull this "big brother I'm just looking out for you shit". If I wanted a break I'd take one. I have keys to a car and I know how to drive."

Dean studied her. She was right. She had survived all this time, but that instinct he had, it came natural and he couldn't help but feel protective. He was so mad at John for keeping MJ a secret. He loved her and wanted to keep her safe and happy. It's same thing he had always wanted with Sammy. He couldn't kick the feeling and bury it deep down. Dean knew he had no right to stop her from doing anything, but it didn't stop him from trying. He'd lost enough family. Mom, Dad, Adam, Sam but he didn't want this girl, his sister, his MJ to get hurt. The girl was kick ass with a shot gun like Dad, had a passion for muscle cars that reminded him of himself, and boy was she smart, just like Sam. Dean wrestled with the idea of telling her no but knew she wouldn't listen. Not with that glint in her eye, that sparkled with defiance, one he was sure that had reflected in his a time or two.

The problem was he was as stubborn as she was, so the least he could try to do was distract her.

"The plan is that we are gonna gank whatever this thing is killing these women and move on." Dean said, standing up signaling he was done with the conversation.

It was about that time Sam came out of the bathroom.

MJ chewed her lip and decided she wanted a shower more than to argue, "About time! I aged 50 years waiting Samantha." she said with a smirk at her middle brother who shot her a dirty look as she stood up to walk towards her duffle bag. "Why I'm almost as old as Dean!"

"Hey!" Dean growled from his spot across the hotel room. MJ wiggled her eye brows at him, grabbed her clothes and ran into the bathroom, laughing.

Sam chuckled. "That girl is something else. Gotta love her"

Dean grinned as he walked over to his duffle to grab clothes, "Can't imagine life without her." Dean dropped his smile. "Don't tell her i said that Sammy" he said, glancing up from his duffle bad to shoot his brother a look. "It'll go to her head"

Sam let out a bark of laughter and went back to cleaning up.