Boy Crazy (Gravity Falls BillDip fanfic)

Dipper's fine. He's fine. He's fiiiiiineeeee. (He's not fine) He thinks that his summer at Gravity Falls had paranormal creatures, a nine year old trying to steal his sister's heart, and a triangle demon trying to take over the world! But that never happened. Did it? [COMPLETED] (I don't own Gravity Falls, and bla, bl...