Brother's Best Friend - J.S.

Olivia Lee is Caspar Lee's little sister. His best friend was Joe Sugg, which meant that Olivia and Zoe became best friends. They have all known each other since they were two. Now, Joe and Olivia were both 20 and Zoe and Caspar were 22. Caspar is very protective over Olivia. When they all hang out one day, Olivia feels something she's never felt before.