This is a Gravity Falls fanfic. It starts when Dipper and Mabel are 'born'. The truth is Mabel and Dipper aren't twins. They aren't even siblings. Dipper is a demon. However with a little possession and manipulation Bill is able to convince the Pines family that Dipper is Mabel's twin brother. Why? Because Bill just wanted to protect his brother from the war in his dimension. Everything goes great. But what happens when Dipper finds out he isn't as human as he thought? And Bill comes to claim his brother? I do not own Gravity Falls. Alex Hirsch does. I also do not own the art on the cover!

Dipper already has to worry about Bill. But what happens when Bill's twin brother comes into the picture?

This is the continue of demonic giardians au

(My personal twist on the Demonic Guardians AU of Gravity Falls) Dipper was an aspiring mage, a goal that would much easier if it weren't for that damned triangle. His guardian was as protective as he was charismatic, and the Pines boy couldn't help but wish that he'd gotten his twin's protector instead.

After months of staying in gravity falls, the two pines twins discover that they have 'demonic guardians'. Their guardians watch over them until death. (WARNING: There might be smut, fluff, and gore in this story! You have been warned..)

This is my version of the guardian AU and it takes place after Weirdmaggedon. In my version Bill wasn't erased just his powers so he was just sent back to the dreamscape, at least till time baby gives him a choice. Yep that's all you need to know for now

Bill finds his long lost son. But what if he discovers that his son is his enemy? Ford protects him and keep him out of harm, but what if the son finds out he is a demon... What will be the reaction of Dipper? Betrayed? Or curious...? Adventures, and a surprise character as his friend! (Ships; Mabel x Pacifica= rev! Pacifica x mabel (gravity falls mabel) Rev!mabel x Rev! Gideon Tyrone x dipper Bill x Will ))))) [Hello, so as of today, I will not continue this story. First, is because I don't have any motivation whatsoever. Second, I first wrote this story when I was grade 7, so my grammar is crap. So I'm sorry if there are some parts that seems confusing, I don't understand it as well since I rarely check this story. With that said, have a good day/night] Disclaimer: Characters ,photos and videos not mine

This is just to let you guys know what different types of AU's are out there for Gravity Falls. This will go through the AU's. If you have a request of one I will try my best to do my little research on it. Otherwise... You're welcome. (◕‿◕✿) None of these ideas are mine.

Gravity Falls Alternate Universes! Most of them will be listed here! Recommend AUs in the comments! There are underrated and popular AUs alike here!

You are just a demon with 2 overprotected brothers.You feel so sad because you never get to do any demon stuff in the real dimesion so you decided to sneak out and discover many things outside the dreamscape.While you are walking around enjoying your life,you bumped into your brother's master.At first you thought he was that heartless monster like your brother said but he was not what he seems.