A/N: this is another Supernatural sister fic but instead of the sister being in the middle she's the younger half sister of the boys. I'm also going to change some dialogue here and there cuz we all know what happens and I don't wanna just vomit the series with a random character. Anyways I hope you enjoy the story, but side note this is Castiel/OC (but i do like Destiel just saying)

I don't own Supernatural or any of the characters or settings, i do however own Isabelle Rose Winchester.

This is a story about the three Winchester siblings. Dean, Sam and Isabelle. They're not you typical set of siblings, the three were able to stop the apocalypse. Dean the oldest is a soldier, strong, able to follow orders and he was the vessel of Michael like his father before him. He is average height, short dirty blonde hair, large jade green eyes, and well defined features. Sam the middle is rebel, often disagreed with the father, is fairly intelligent, he is also strong and able, and he is the vessel of Lucifer. He is tall with long (shoulder length) brown hair, jade green eyes and well defined features. Isabelle is the youngest, or the baby, she neither rebelled nor fully followed the father, just as strong as her brothers but is often underestimated. She is fairly short, with long brown hair, is much paler than her brothers, is fairly skinny, with large emerald green eyes and soft features. There is a four year age difference between each sibling, Isabelle has a different mother than Sam and Dean, but she was given to John when she was a baby. All three are hunters and all three will change the world.

*Isabelle POV*

Four months its been four months since we buried my oldest brother and since my other brother abandoned my ass. I sat alone in Bobby's kitchen staring at the soda in front of me waiting for it to turn into Dean needless to say it didn't. I sigh and decide to cook something, such a female response cook or clean to avoid what's wrong, but Bobby's place had never looked this good. I decide to make fried chicken and mashed potatoes, I've been eating alot of that lately and I'm still a fucking twig. I'm halfway through cooking when Bobby comes down stairs.

"What smells so damn good Isabelle?" he asks.

"Fried chicken," I reply.

"Great I'm starvin" he reaches for a drumstick and I smack his hand.

"It's not ready yet," I scold him.

"Isabelle Rose Winchester, you oughta know better than to keep a man form his food!" he growled at me. I smiled and rolled my heres and continued on. We started eating and Bobby wolfed down the food like a man who'd been starving for years.

"You should slow down daddy," I said than smacked myself. Calling Bobby daddy was a sure fire sign that something was wrong. Don't get me wrong he's more of a father than John ever was, but we Winchester's aren't the affectionate type.

"What's the matter Belle?" he asked noticing my slip.

"Freudian slip?" I say hoping he buys it.

"Bullshit."

I sigh. "I'm worried about Sammy. I mean you'd think I'd be used to them leaving me behind but I'm still worried he's gonna do something stupid."

Bobby seemed thoughtful. "Your brothers and idjiot but he'd call one of us to go clean up his mess." I nodded, Sammy does mess up alot.

We continued eating in silence until there was a knock on the door. Bobby groaned and I got up. "I'll get it," I told him and he smiled. I opened the door and saw Dean standing there. I screamed bloody murder. Needless to say Bobby came running.

"Bellsie, Bobby! It's me!" Dean shouted. Bobby attacked and I just froze.

When I snapped out of it Dean cut himself with a silver knife. "Dean?" I said.

"Hey baby sister," he replied. I hugged him and he helf me tight. Bobby hugged him and splashed some holy water on his face. Dean turned and spat out the holy water that got in his mouth.

"I'm not a demon either," he said annoyed.

"Just gotta be sure," Bobby shrugged. I smiled, seeing the two men interact was hilarous. Dean took a deep breath through his nose.

"Hmm Bobby what smells so damn good?!" he asks.

"Belle made fried chicken, it's on the table." Dean barrels into the kitchen like a man possesed. Bobby and I follow and see him borderline inhaling the food. I shrugged and leaned against the wall, and Bobby finished his plate.

"Hot damn Bellsie where did you learn how to cook?!" Dean exclaimed.

"Umm I don't know." I shrugged.

"Well keep doing it," he told me. I smiled , it really was Dean, but how was he back.

"Dean?" I said.

"What's up baby sister?" he replied.

"I hate myself for asking this but how did you get out?" Bobby nodded in agreement.

"I don't know, something pulled me out and it left this," he pulled his left sleeve and there was a hand print burned into his skin.

"The thing that pulled you out left that?!" Bobby exclaimed. Dean nodded. He looked around and noticed the lack of the tallest Winchester sibling. Bobby and I looked at eachother.

"He's alive," I said.

"As far as we know," Bobby added.

"As far as you know!" Dean exclaimed.

"He's been gone about four months Dean," I said.

"And you both let him leave?! Bellsie you should've known better!" I recoiled like he slapped me.

"Back off boy she chased after that boy after he abandoned her," Bobby growled.

"What do you mean abandoned her here?" Dean asked.

"He drove off while I was in the study with Bobby, I tried to stop him i really did," I replied.

"Why don't you call him?"

"His phone's off the idjiot," Bobby replied. Dean smirked and called the phone company to turn on the GPS. We looked on the computer and found where Sammy was.

Dean and Bobby wandered off and I cleaned the kitchen. I was scrubbing the pots when I heard someone come in.

"Bellsie," Dean said.

"Hmm?" I replied without looking up.

"I'm sorry I snapped at you earlier," he said.

"It's alright Dean I can't even begin to imagine what you've been through," I replied looking up at him.

"Did Sammy?" he started.

"No he didn't tell me why he left me here," I finished.

"Well we'll find out Bellsie." I smile at my oldest brother, her really is a sweetie once you get past the hard shell and the ego so huge it really doesn't fit anywhere.

The three of use left, Dean and Bobby in the front, me in the back. We got to the hotel and found Sam's room. Dean knocked on the door and a short brunette girl answered.

She looks at the three of us and asks, "So where is it?"

"Where's what?" Dean replies.

"The pizza it takes two guys and a chick to deliver," she replies.

"I think we have the wrong room," Dean says.

Then Sam walks near the door to ask the girl, "Hey is that," only to stop when he sees Dean.

Dean waves and smiles, "Hey Sammy." Sam attacks Dean and the girl screams. Bobby and I fight Sam off saying that its really him.

Sam looks at Dean. "Is it really you?"

"In the flesh." They hug and it was the cutest brother hug I'd ever seen.

The girl spoke up. "So are you two together or something?" she asks.

"What! No, this is my brother," Sam replies.

"What about her?" she asks gesturing at me.

"That's my sister."

"Right, maybe I should go ," she says.

"Yeah," Sam replies. They talk for a few minutes and she leaves.

"So how much did it cost?" Dean asked.

"The girl? Dean I don't pay," Sam replied smiling.

"Not the girl Sam, how much did it cost for you to get me out?" Dean asked.

"Dean it didn't cost me anything."

"Except your soul Sammy this isn't what I wanted!,"

"Dean! I didn't make a deal! I tried but no demon would take it. I'm sorry I didn't get you out but believe me I tried," Sammy replied getting defensive.

Dean looked as confused as I was, if Sammy didn't get Dean out who or what did?

"Bellsie?" they both said looking at me.

"Don't look at me I didn't do it," I held my hands up.

"Next topic, Sammy why the hell did you abandon Bellsie at Bobby's?!" Dean asked.

"I needed to be alone," he replied then looked at me. "Bells I'm sorry," he said to me.

"I know you are Sammy but do it again and I'll cut your balls off." He smiled but I was serious.

"So if Sam didn't bust you out who or what did?" Bobby asked. We all shrugged. "I have an idea," Bobby said.

"What is it?" Sam asked.

"Pamela Barnes, best damn psychic in the country. She's about four hours down the interstate. Try and keep up."

Bobby left in his car and Sammy brought Dean and me down to the impala.

A/N: so in my head I can see Dean as on overprotective yet sweet brother to a baby sister. that's why he is and will be slightly OOC in this story anyway please comment and review i would really appreciate it.