His name is matt, 3 yrs have passed after your father's funeral. Your mom married a single dad that has a son from his past wife.

You and matt really have never interact with each other

He seem to watch you when you're not aware

But you felt it...every time

One day your parents go for a vacation leaving you and matt in the house for 2 weeks.

After seeing that they are gone, you saw matt smirking...

"So what should we do little sis?"

smirking