Fighting Attraction, by Sarah Castille is an intense contemporary romance book.
Jack "Rampage" Caldwell is a professional MMA fighter, and he trains at Redemption, which is a premier training facility in California. In addition to training top MMA athletes, Redemption is also a primary work out site for the fighters' girlfriends and other friends, including the single Penny Worthington.
Despite being friendly for over a year, Jack and Penny have never been more than acquaintances...until she discovers that Jack is secretly involved with a BDSM club. Due to his continually professed darkness, Jack thinks that Penny is too sweet and innocent for him, even after she decides to join the club. However, she's hiding several secrets. As the story unfolds, Jack and Penny are forced to deal with the ramifications of their pasts affecting their current thoughts and actions in their lives and unofficial relationship.
Since it's the fourth book in the Redemption series, it's recommended to start with the first book, Against the Ropes, yet it's not necessary to read the books in order.
Fighting Attraction is focused on serious issues and dramatic situations, and it's geared toward adults who prefer reading intense modern MMA and BDSM romances.
Note: I received this book from NetGalley, which is a program designed for bloggers to write book reviews in exchange for books, yet the opinions expressed in this review are my own.