Kindergarten teacher Megan Rossi is devoted to being a mother to her best friend's five-year-old daughter, Molly. When the child was orphaned, Meg became the little girl's legally named guardian over the objections of Molly's wealthy grandparents, the Campbells. Now the Campbells are petitioning for custody, and Meg is faced with a long and expensive legal battle. The last thing she expects is for her former high school boyfriend-and the Campbells' estranged son-to offer a solution: marriage.

Billionaire software developer Jason Campbell knows his parents don't have Molly's best interests at heart. For them, it's all about money and control. However, there is one way he can ensure that his sister's last wishes are honored. He will offer Meg the protection of his name and lawyers until the custody arrangement has been finalized, then he'll secure his niece's future with a very generous divorce settlement. Jason's considered all the possibilities, except one-that the sparks that once flew between him and Meg might reignite into a burning passion, and that his confirmed bachelor heart might just melt away from the heat...