A/N-Okay so this is my first Gravity Falls Fanfic, But I am a big time fan of the show so that fuels this particular Fanfic, that and the fact that Robbie x Mabel has become one of my favorite pairings. Robbie and Mabel quickly become friends after Robbie cheers Mabel up and vise versa but will their friendship evolve into something more? *Now an AU due to developements* Enjoy