1.

Raelynn is a girl who's brother is Jake. one day Jake meets Raelynn for a surprise, after so many years, and he brings her to his house to meet all the guys and do a video. Then she got close to Colby and by doing that she changed almost completely. So Jake was having a hard time because he couldn't find his sister anymore.
NOTE
JAKES REAL SISTER ISN'T IN THE STORY!