Kate Winchester was always the baby sister of Dean and Sam. She was always treated like she wasn't as good as them, but now that's changed when John ends up going missing and her and Dean decide to get help from Sam. Sarcastic comments, classic rock and long road trips are install for finding John. (Sisfic! Hope you like it if you read. - R&R please!)

Sisfic! Starts at S01E01. More than just an insert character into an episode fic. Alex is John Winchester's secret daughter; she was born a year before Sam from an affair John had while married to Mary. As it turns out, no matter how secret a Winchester is kept, the curse of hunting follows them around. And maybe, just maybe, one good thing could actually happen to them.

Emily Winchester is living in New Orleans, happily single and far from the chaos her brothers face everyday-until Michael shows up in need of rest and bringing news of an angelic war. The sequel to 'A Lesson in Love' and 'Better Late Than Never'. Michael/OC, established Dean/OC and Sam/OC. Mentions of abuse. Sisfic. Please read and review! :)

this is a Dean x reader one shot. It could be taken as a sisfic but it could also just be a regular Dean x reader one, depends on how you read it I guess. It deals with dark themes in detail so trigger warning for cutting and depression. I wrote it as therapy for myself and it's my first SPN one shot so I'm sorry if it's terrible but I'm quite fond of it hehe, okay enjoy my loves

SISFIC Don't like don't read! Sam and Dean have a half sister, Libby. There is a secret about her they do not happen to know yet, watch there lives with a sister and how they come to know about her dirty little secret. T rated for language! I do NOT own supernatural or any of the characters with it besides Libby :)

The last thing A.J.'s father ever gave her was a white piece of paper with 12 phone numbers on it and told her to remember the names "Sam and Dean Winchester". Now after her mom dies under mysterious circumstances she is forced to call the boys. She always wondered why these boys would be so important and after meeting them, she realizes they have a lot in common. Please R&R sisfic

SISFIC Aiden was just a normal, eighteen year old, right? Wrong. Her brother's were none other than Sam and Dean Winchester. How can you be normal when you're a Winchester. Spin-off, deviates completely from plot! WARNING: Bad language and stuff, Sibling fluff if you don't like, don't read :)

Dean hoped that she would stay a secret, but now his father is dead. Forget about John's rules, she has a right to be at her daddy's funeral, even if she hasn't properly seen him since she was three: the same night that her mother died and her brothers actually escaped the fire. Kath Winchester may be blind, but she is anything but helpless. Time to continue the family business. AU

Lawrence, Kansas. Two Winchesters were born, and all Hell broke loose. But what happens when they discover two is actually three, and Heaven decides to crash the game? Because life's no fun with just the Devil on Earth. Now, all the other Angels want in too. Question is, what will happen in this chess match between Michael and Lucifer, where they are the pawns?

There was never a day that Jamie didn't think about her boys, but she never thought that they would ever come and see her. And she sure as hell never would have expected what they had to tell her. Set in season 3. Rated M for breathing room

Dean and Sam have a long lost little sister , who was taken away from them, by social services when they were younger. Will the brothers find their beloved sister.

Set in Season One on. Another Sisfic with a twist! Rose never asked for this. To be unwanted and unloved. To be adopted by a crazy from a man who only wanted his two sons. When she finally has the chance to get away, someone appears to pull her back. Rated M for language.

-SisFic- 'And we lost it all, nothing lasts forever. I'm sorry, I can't be perfect...' Anything Bethany Winchester did was never good enough for her father. When he's gone, Dean takes over on judging her every move. She tries so hard to make him proud, but never succeeds. She's always tried to ignore it, but what happens when she hits her breaking point?

Blood doesn't always mean family and family doesn't always mean blood, but family ties will always be strong, no matter what has happened in the past. Six years after being abandoned by her family, Madison Winchester is reunited with her two brothers and thrown into a world of violence and supernatural she could never imagine. Family/Hurt and Comfort. Rated T for caution. OC/sisfic

-Sisfic-Alyssa Winchester is Sam's twin.Somewhat.When their Dad disappears, Ali and Dean have to get Sam to help find him.Added to that stress, Ali is also having dreams about being and angel-demon-human hybrid, and having visions of people dying.Can she hide it?Or will her brothers find out?Season One throught Ali's eyes.Please enjoy!Spoilers for seasons 4-8 INCLUDES CAS Cas/OC

Sisfic. Dean and Sam have a younger sister, Ellie. They're still at school, Dean is 17, going on 18, Sam is 14, and Ellie is 12. John goes on regular hunting trips, and Dean looks after the younger two. Ellie doesn't know about their life... yet.

My first fanfic. This is a Sisfic. So don't like, don't read. Sam and Dean's little sister gets sick during a hunt. What the boys don't know is this is not just an ordinary sickness.

Sam and Dean have a younger brother and sister these are the episodes with them. I know alot of people don't like sisfics or whatever, thats fine, thats their opinion but I do. If you don't like them then don't read. Thanks to those who do! please R&R

Ever Winchester hasn't seen her family in four years; not since she went to hunt on her own. But when their father disappears, the sister teams up with her twin brother, Dean, and her baby brother Sam to search for him, but will she find more than she bargained for? Sisfic.

Sisfic, Sam and Dean's lil sister, half angel, half human, Cas's niece, back from heal after macking a deal with the demon that killed her mother to bring her dad back, YEAH John is in the bilding, it take place in season 4, rated T, R&R please

This is my first Supernatural Fanfic and it's a sisfic. I'm terrible at titles and even worse at descriptions but give it a chance and because I don't have it all figured out if you drop me a review or message I will totally take into consideration any suggestions or requests for the story. Okay enjoy!

"It's always damn fires, isn't it? I should be walking around in a firefighter's uniform or something..." Erica Winchester hasn't had it easy. At all. And having a close relationship with her brothers might make her that much more honest. Sisfic.

1989,Fort Douglas Wisconsin John Winchester rolls into town with words of children falling mysterouisly ill.Will he get to the bottom of it before he loses his daughter?Bad summary.Added sister and brother please give it a chance R&R

Sisfic! Don't read if you don't like! My first fanfic, so be nice! Sam and Dean have a 15 year old sister, Carli. They try keeping her safe at all times, but they soon learn they can't always keep her safe! Yeah, sucky summary I know!

After finding out that they have a long, lost sibling, Sam and Dean race to beat the fate that follows. With the help of Castiel, Kevin Tran and a new prophet named Eden, will they be able to save the only family they have left? Or will their doom, once again, prevail? *Multi-chapter sisfic*