Ronnie Hennessey is nothing like her friend Tami Spier. She's not a partier, a drinker, and definitely doesn't do hook-ups. And that's how she likes it. Then there is her brother Tanner. He parties, drinks, and rebels. All along with his best friend Jay Collin- his childhood friend who lives right next door to the Hennessey family. And Tanner only has two rules regarding his sister and best friend: 1. They must get along. 2. No macking on my sister/best friend. Ronnie and Jay never got along and they could never see eye to eye. But when secret feelings are revealed and a relationship blooms- a relationship that could cost a friendship- they must decide how long they can keep the secret from Tanner and prepare themselves for his reaction. And the heartache that could come with that.