![Happy Birthday ..Twins ? [Gravity Falls fanfiction AU] by YallHaveAProb](https://img.wattpad.com/cover/204045247-512-k823280.jpg)
Happy Birthday ..Twins ? [Gravity...by YallHaveAProb
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4442It was a beautiful morning in Gravity Falls, you could hear the birds and feel the nice breeze of the morning. Mabel and Dipper were going to celebrate their 16th Birthd...
Zero Gravity Falls: Guide Bookby Demonic Angel7.8K1066
7.8K1066This is a Guide Book for Zero Gravity Falls. People really liked my Reverse Falls Guide Book, so I made another. Hope you enjoy it! And I apologize if it is distasteful...