Questions without answers Bill x reader

Human!Bill Cipher x reader. I don't own the cover pic.
"Hi, I'm Mabel and this is my twin bro Dipper. You must be new, I haven't seen you around."
The girl held out her hand with the smile never leaving her face, actualy it just grew wider. I laughed and took Mabels hand shaking it gently, same with Dipper. " Actualy, I lived here for 18 years."
Mabel and Dippers eyes grew wider, well, Mabels mostly. "Really? How old are you by the way?" Mabel asked with what seemed like stars shining in her eyes.
I laughed again and started walking with them to the shack. "I'm 21."
Dipper looked at me and asked my name, which I forgot to tell them.
"Oh! Sorry, I'm (y/n), (y/n) Pines."