“You Have No Idea Who I Am, Do You?”
Summary: Sam and Dean learn they have a sister and she helps them hunt a siren.
I’m already super great at summaries
Characters: Dean, Sam, Castiel, and sister!Reader
A/N: So this is my first ever attempt at writing fanfiction, so everyone please go easy on me. This is for @casbabydontgoineedyou ‘s 1K Follower Celebration. I’ve had the idea for this fic floating around in my head for a while now, so when I saw this prompt on her challenge I knew I needed to just take the leap. I’ve tagged her and a few of the other fic writers I follow just to get feedback. I hope that’s ok. Any feedback (but especially the positive kind) is welcome. Also, it’s kind of long. Sorry, my hand slipped.
Warnings: Angst, language, canon-level fighting. Also no smut (sorry?)
Prompt: “You have no idea who I am, do you?”
(gif from google)
Dean pulled the Impala into the bunker’s garage. It felt good to be home after the long drive from North Dakota. You, Dean, and Cas had just finished up a run-of-the-mill vengeful spirit. You couldn’t help but laugh a little at the thought of a vengeful spirit being “run-of-the-mill.” What a weird life we lead.
“Cas, you’re welcome to hang out for a bit. I’m going to hit the sack,” you stretched out satisfyingly. The familiar halls were comforting, and your bed was calling you. You shuffled through the war room towards the library. The walk from the car to your bed always seemed laboriously long.
Quickly and silently, a figure came out from behind the wall to stand at the top of the library steps, gun raised in a practiced stance. Behind the weapon was a (tall/average/short) (y/h/c) stranger. Just as quickly, you were awake again. We raised our guns in reply and Cas’s angel blade was in his hand.
Suddenly her shoulders softened as her gun lowered.
“Oh thank god you’re here,” she sighed. “I was in the hotel room when some grey suited guy came up to me and painted some crap on the wall. There was a bright light and next thing I know I’m in this Cold War hideout. I think we’re underground. Are we underground? How’d we get here? Where’s dinner?”
exchanged glances again as our guns stayed up. A demon, maybe? But how did it get in here?
“Oh god –” the stranger’s voice wavered – “you guys have no idea who I am, do you?”
us, kid,” Dean snorted.
look of grief washed over her (y/e/c) eyes, “I’m your sister.”