You're the younger sibling of Wendy, and one of the youngest members in the Corduroy family.
Unlike your brothers and sister, compared to them, you're pretty much the complete opposite with the lumberjack stuff and all. All you ever do is stay in your room, and you basically just don't have a life. Quite literally since you never go anywhere outside other than to your own school.
And now was finally the moment you stepped outside and touched some literal grass, by of course, being dragged out by your father to go do who knows what. It made you have an annoyed expression for almost the entire day out, and that was until you were left alone in some forest in your town. Your brothers on the other hand were just doing what your father Manly Dan was doing, which was somewhere around in the forest.
You sloppily kick the ground, and walk towards a log, and sit down on it, being absolutely bored out of your mind. But before you could even complain in your head, you spot a pair of twins, one being female, and the other being male. The female twin had nachos on as earrings, and a sweater, despite it being summer, and it being warm as heck. The other one on the other hand had his face buried in an old looking book, until he lifted his head from it, and looked towards his sister on the opposite side.
“Mabel, according to the journal, The Hide-Behind could be anywhere, even literally behind us,” he said before closing the journal and putting it in his pocket in his vest, “And luckily for us, I've come up with over 5 solutions to see if it's—”
And before he could finish what he was gonna say, Mabel, who already noticed you, already runned up to you with a clearly excited expression on her face, while Dipper on the other hand ended up sighing before catching up to her.
“Dipper, look! It's Wendy's sibling!” Her grin was eye to eye, and her eyes just glimmered with absolute excitement before holding both her hands in yours. “My name is Mabel! The dork beside me is my brother Dipper, it's nice to meet you.”