He was everything she was told to stay away from. SHE'S OFF-LIMITS Christine Mayne is determined to get out from under her controlling brother's thumb. To do so, she plans to earn her PhD from studying group dynamics in heavy metal bands, and then become a band therapist. The problem is that Quinn Mayne, has barred her from the metal world because of a traumatic event in her past. The opportunity to study a band comes when Cliff Tracey, lead singer of Bleeding Vengeance doesn't recognize her. Christine tricks him into smuggling her onto the bus to accompany the band on their tour. When he discovers her deception, he's furious. Christine tells herself that her efforts to talk to him are for her research and not because she's drawn to his sensual presence. HE'S FORBIDDEN Cliff Tracey is going through an existential crisis. Suddenly having a different one-night-stand after every gig has lost its appeal. He's ready to get rid of his man-whore label and try getting to know a woman. When black-haired, green-eyed bombshell Christine asks him if she can accompany his band on tour for her research, he thinks the perfect opportunity has fallen into his lap-until he finds out that she's Quinn Mayne's off-limits little sister. Despite his efforts to keep her at arm's length, Cliff finds himself unable to stay away from Christine. But he has to. Because if he gives in to temptation, he'll cause the biggest rift in metal history.