Gravitynatural

by The One Everyone Forgets

Bill Cipher is the least of their worries as Dipper and Mabel do the family business. They thought that they were on an ordinary case, but it blossoms into something else. With a new threat rising, they must find a way to save each other. Angst-y, with a chance of tears. Character death. Rating because of language, killing, mentions of suicide and cutting, and possession.

1. 1: Bill Cypher

Author's Note: Okay, this one is pretty crazy. I noticed how similar Dipper and Dean (from Supernatural) are in regards to them doing anything for their sibling(s). So I decided to do a one-shot about it. If I get enough reviews, I might actually make this a chapter fic!

Disclaimer: I still own nothing. I do not own Gravity Falls, nor do I own Supernatural. Nope, just a farm girl with crazy ideas!

"I swear, lay one hand on my sister and I will-" growls Dipper, "Ha! I'd like to see you do anything, kid! Look, I'm shaking!" taunts Bill, "I… will… murder… you!" whispers Dipper. With all the force left in his battered body, Dipper lunges at Bill with the knife in his hand. "No!" shouts the Dream Demon, stopping Dipper. "Now go!" he roars. Mabel limply falls onto the ground. "Mabel!" shouts Dipper, "No! Not while I'm still alive!" screeches Bill, "Take me, not Mabel!" demands Dipper, "Oh, but I've taken such a liking to your foolish sister!" protests Bill, "Bill Cypher, she is my sister. I'd sell my soul to save her." growls Dipper. "I'd buy it, but Pine Tree, you don't have a soul to sell." laughs Bill, "Oh really?" asks Dipper, "But come with me and I'll set her free." offers Bill. "No, I don't think so. You shouldn't trust a man with the lower hand. I know that you're bluffing, Cypher." declines Dipper, "You're a smart kid, Pine Tree." comments Bill, "Just like your sister." Dipper chuckles, "Yeah, but there's a difference." Bill raises his eyebrow. "Oh? What?" he asks, "I will not hesitate to kill you!" Dipper thrusts the knife through Bill's bowtie.

"NOOOOO!" shouts Bill, "Yes." hisses Dipper. "Now I know for sure. I know you." whispers Bill, "What? What? Tell me, Demon! TELL ME!" roars Dipper, "You are a monster, just like me." Dipper could imagine Bill smiling, if he had a mouth. "No! I am not! I AM NOTHING LIKE YOU!" snarls Dipper, "Sure. You will always end up here. You are one of us. A demon." whispers Bill, "I will never be like you. You are heartless. You have no one. I've got Mabel." hisses Dipper, "Pine Tree, I may be dying, but I'm not lying now. You will be one of us. I will see you then." Bill disappears with a flash of bright blue light. "Demon? No, not me. Am I- I'm not one of them! No- no! I'm not." mutters Dipper. He turns to Mabel. "Mabel!"