My brothers best friend

Cassie Johnson always was close to her protective 2 year older brother Blake, and his best friend Aaron hills, Cassie soon realizes that she is in love with Aaron and Cassie's best friend Alice tells her that she isn't right for him and that his is a player and Alice should know after all, Aaron is her brother. But Cassie can't help but fall in love with him. What happens if he is in love with her to? Will her heart get broken? What will her brother do if he finds out?