My Paranormal Romance

In this town, things are not normal. Well, the only normal thin is Tad Strange. But, besides that...My hometown, Gravity Falls is very...interesting. Me; Dipper Pines, a geeky nerdy 15 year old with a bubbly twin sister, Mabel Pines. Mabel and I just moved back to Gravity Falls after out parents Death. The Stans took us in and now we live in Gravity Falls. One day, two 16 year old boys move into the forest close to the Shack. They are known as; The Rephic Twins. After meeting them...I grew very close to one of them. He showed me many things about this world and even helped me with my studies.
But, I honestly didn't know what to do when I found out he was a....
Demon.