Gravity Falls: Comet (Male Reader X Mabel Pines)
Y/n thought he was the best friend of Mabel and Dipper Pines, which he is. He thought he was gonna be a normal kid, which was eventually proven wrong. And thought that his trip to Gravity Falls, Oregon would be like camping. We all know at this point how this story goes. See Y/n and friends tackle some foes, Old and N...