All the Gravity Falls AUs that I know of.

Dipper Pines is sent to the small town of Gravity Falls for the summer. But little does he know is that Bill Cipher, a dream demon, has been watching him. When Bill journey's into Dipper's mind in an attempt to try to get him to summon him in the real world it works, much to his delight. A dangerous deal is made, and now Dipper is powerless as Bill takes control. The more insane things Bill makes him do, the more demented the boy becomes... ∆ 3rd place winner of The Spring Gravity Falls Wattys, Dipper category! ∆ (Written circa 2015/2016) Newly Edited for grammar mistakes

Dipper is an aspiring author looking for work on the sea for something to write about. He is going around a port city asking around on different ships one night when he stumbles upon she ship of the Demon of the North Seas, Captain Bill Cipher. He is taken prisoner for a night, not knowing whether he would live or die. But Bill allows him to live if he becomes part of the crew, and he starts taking a liking to the brunette. I said I was going to do a series of Billdip one-shots next but I lied (apparently). I got this idea and I couldn't stop myself! This is a thing that's happening now XD I'll still probably do the other thing on the side as well. Rating: 13+

HIT OR MISS, I GUESS SHE TOOK THE KIDS HUH?!

The series will continue the adventures of pranksters and comic book artists George Beard and Harold Hutchins and their new friend (Y/N), and their nasty principal Mr. Krupp, who was hypnotized by George, Harold, and (Y/N) to become their creation: Captain Underpants, a brief-wearing superhero. Based on the epic tales of captain underpants and I am gonna add the reader in the story. But maybe unlike my other captain underpants various x reader stories it might or can have a few changes because I heard in the show it was gonna be a bit different. And maybe you can still have powers and be Esthetic. I hope you all like it and I would like to see you all enjoy the story