The Lepidoptera Vampire Series by Susan Hoddy

Genre: Fantasy; Paranormal; Romance 

Attraction: The Lepidoptera Vampire Series - Book One Blurb

Villette Castell is a quiet, high achieving teenager, living with her family in Los Angeles. When her parents die in a horrific carjacking, Villette and her sister, Danielle, are fostered to a couple who move them to Bagnolet, France.

When Violette meets charming Michael Gramaze, she feels an instant magnetism toward him. As their attraction for each other grows, Violette stumbles upon the truth about Michael and his family of vampires. She is thrust into a world of danger and secrecy, where rival vampire dynasties fight for power, and where the very existence of the human race hangs in the balance. Desperate to keep his family secret, Violette is drawn into an unruly duel between good and evil, and discovers she has more of a role to play in this battle than she could ever have imagined.