Two's a date. Three's...a family?

When they become guardians of their best friends' orphaned baby, Ryan Garrett and Harper Ross expect disaster. The two can't be more different — she's an uptight career woman and he's a laidback ladies' man. But for little Oliver, they're now mummy and daddy.

For Harper, playing house with the flirtatious Ryan is as difficult as being a mother. Fussy babies elude her but sexy Ryan pursues her! He reminds her of the night they spent together years ago; she needs to forget it. All they agree on is their love for the baby. They'll do anything for the little guy. But when their custody is threatened, will they go all the way and marry?