My Younger Cousins (gravity falls x male reader) Book 1

This wasn't labeled mature for swearing. This book does explain the backstory of the character in the book, so if you want to understand just read the damn thing. Everything will be explained on the info page in this book will be longer than any of my previous books, and will be updated every week at random times (I have no upload schedule but usually on Tuesdays around noon). This is book 1 of a so far 11 book series the layout so far will be put in my other book "Things with friends" if you want to see it go there.