Unbelievable Mystery (HiroxDipperxReader)

Well Someone has to make this I seriously Like Bh6 and GF (Big hero 6 & Gravity Falls) I decided to collab the two it makes it even better And some of my friends said to do a Hiro x Reader book (I actually did it was a request) And others argue to make a Dipper x Reader book But.... Why not make a HiroxDipperxReader...

Bill's daughter (Dipper x Reader)

My first attempt at writing a fan fiction it's terrible I know but it gets better once I learn how to but words in the right order, anyways you are Bill's daughter (obviously) and there is a backstory (prologue) within the the story I read all of the Dipper x readers and I got so bored cause there is no more to read...