Sabrina Fortune is as methodical as they come. So when she uncharacteristically topples into one unexpected night of passion with Zane Baston, she's stunned to find that she's pregnant! Zane's life--as meticulously mapped out as Sabrina's--also is knocked off its axis by Sabrina's news. Not to mention the discovery that the unlikely duo is having twins! But as they work together to figure out an arrangement for co-parenting, they soon discover that love has a way of overcoming even the best-laid plans...

From Harlequin Fortunes of Texas:

Book 1: Fortune's Secret Marriage by Jo McNally
Book 2: Nine Months to a Fortune by Elizabeth Bevarly
Book 3: Fortune's Faux Engagement by Carrie Nichols
Book 4: A Fortune Thanksgiving by Michelle Lindo-Rice
Book 5: Fortune's Holiday Surprise by Jennifer Wilck
Book 6: Fortune's Mystery Woman by Allison Leigh