Mordecai and Rigby accidentally crash the golf cart from the park, and get stuck in the sleepy town of Gravity Falls. In the process, the Golfcart is burned and destroyed, and they have no way back home. They stay at The Mystery Shack, and become friends with the Pines family. But as Mordecai and Rigby spend more time with others. Rigby starts to get jealous, and with dream demon Bill Cipher lurking around, what could happen? ----------------------------------------------------------- [Cover by @Mello-Bee] This is my original crossover concept,as I am aware I am the first that i have seen on here to write about this crossover concept. Regular Show is by J.J Quintel, and Gravity Falls is by Alex Hirsch. All rights to the shows used goes to them.