Kira McKenna has everything she's ever wanted...almost. She has a fulfilling career as a fitness instructor, a loving family, and a supportive group of friends who always have her back. After a few dark years in her early twenties, she even has her mental health in a manageable state. The one thing she doesn't have is the keys to her castle. When Spin Sync, the fitness company she helped build brick-by-brick, is sold out from underneath her before she has a chance to make an offer, Kira is blindsided and a little angry. When she finds out who the company was sold to-the sexy stranger she shared a spicy moment with at her best friend's wedding-she's absolutely furious. Warren Yates has a hand in everything. Blessed with more money than he'll ever know what to do with, Warren has spent the last twenty-five years investing in the kind of future he'd like to see for the children he'll probably never get to have. When the opportunity to purchase Spin Sync and take over the role of CEO crosses his desk, it all seems like a no brainer. Combining health, wellness, accessibility and technology, Spin Sync is a little bit of everything that Warren is passionate about. To Kira, Warren is the symbol of her greatest betrayal, and she is determined to make his life hell. To Warren, Kira is the fiery hellcat whose anger turns him on, and he is determined to make her see that he's not some full-of-crap guy out to ruin her. When forced to put their feelings aside and come together for the good of Spin Sync, the two find themselves sharing more than just secrets when anger simmers into something much steamier. Before they know it, their undeniable chemistry has Kira tearing down her carefully constructed boundaries, and Warren's passion has her spinning out of control.