The Falls - AU Gravity Falls - 18+

(HBO Reboot)
After six years of not being able to visit his sister in Gravity Falls, Dipper finally can move in with his Grunkle Stan when the twins turn 18. While Dipper has been away, the weirdness of the Falls hasn't paused... things only get weirder when Dipper returns and has two guys fighting over him, even more so when one of them was his once nemesis.

Robbie and Nate have remained friends over the years, even when Nate found out he was a werewolf and Robbie got bit by that Giant Vampire Bat on that post-graduation camping trip. Things flip over when Dipper moves back to town, and there is a gravitational pull between Robbie and Nate toward Dipper.

Dipper has had a bad couple of years without his twin sister, though Mabel had friends and family to cheer her up from the absence of her brother... but how is she going to tell him that she is with the girl he drooled over all summer of 2012