This AU is about how Dipper and Mabel were separated at birth, and how they meet one another. Typically, Dipper lives in the Mystery Shack while Mabel is sent there for summer.
Dipper "I wish that could have happened here."
Mabel "Well, I wouldn't wish it."
Pacifica "I must be crazy to agree with you."
Stan "This is strange.
Ford "Very strange."
Soos "Dude, this is major wierd crazy."
Wendy "You said it, Soos."
Robbie "I wounder how it would turn out?"
Gideon "I wounder the same thing."
McGucket "Might be oppaset."
Bill "Something like that."
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Gravity Falls reacts to...
FanfictionMany of the cast of Gravity Falls are force to watch everything that pops in front of them like a video add. This makes my fourth cast react to stories.
