My Heart Belongs to the Maverick — Carrie Nichols

Her perfect valentine is just within reach 

Ella McIntyre realizes the odds of a gorgeous, sexy cowboy like Ryder Trent falling for a quiet librarian like her are…slim. Life just isn't like one of her romance novels! Still, as they work together on a Valentine's fundraiser, he sure seems interested. But he's made his views on marriage crystal clear, and she doesn't do casual. Little does she know, she's got cool and collected Ryder quaking in his boots. The rugged rancher has built walls around his heart, and sweet, “almost a virgin” Ella is about to come crashing through…

From Harlequin Montana Mavericks: 

Legacy of Tenacity

Book 1: My Heart Belongs to the Maverick