Issued a bet at the company Christmas party, reserved accountant Blake Carmichael determines to catch Lucy Brier’s interest, a woman he’s lusted after for years. Although she’s a touch wild, Blake hopes the feisty woman can bring some happiness into his life, and perhaps become great mother material for his five-year-old son. Because of a longstanding rivalry, Lucy’s determined to prove her sister, Trisha, wrong and win the challenge she presented. To do so, Lucy has to quit flirting around for an entire year, not an easy task for the vivacious brunette who is all about loving life and having fun. However, Lucy’s determined to do it. Besides proving her sister wrong, the prize is Trisha’s next Christmas bonus—enough money to cover Lucy’s paycheck for an entire year!