A Marine for Christmas (Harlequin Super Romance (Diamond Dust Trilogy #1)

Growing up in her perfect sister's shadow wasn't easy. Especially because JC Montgomery had been in love with Liz's boyfriend for as long as she could remember. Brady Sheppard, a guy who thought of her as only the kid sister. But that all changed when Liz married somebody else and Brady ended up in bed with JC It was like a dream come true.Except now JC's pregnant. And Brady's a wounded marine, so it's going to be difficult for him to get down on one knee and tell her she's his reason for living.... But he will.

Because she still believes in Santa Claus.