Unworthy by Lynne Silver

His best friend’s little sister…Off limits. Until Now.
Bienvenidos a Miami. Welcome to the hottest party scene in the U.S. Behind all the glitter, hard bodies and sexy drinks, the lives of the hard-partying residents of the 305 aren’t all they seem.
Cat Ross struggles to make ends meet. If she doesn’t scrounge up enough cash for rent and to pay off her brother’s drug dealers, she’ll be sleeping at a shelter, and her beloved brother, Danny, will be in worse trouble.
As Miami’s hottest party promoter, it looks as if Ian Lawrence’s life is fun and games, but partying this hard takes work, and Ian takes business seriously. He wasn’t counting on his former best friend’s little sister, Cat Ross, to come crashing back into his life. She was the one girl who mattered until he messed things up by sleeping with her on her eighteenth birthday, and then running.
As Cat and Ian’s relationship reignites, he wants to protect her by keeping her brother away. But it’s not easy for Cat to choose between her last living family member and the man she’s always loved.