Montana Cowboy Daddy by Jane Porter

Professional rodeo cowboy Billy Wyatt is in the prime of his career. He’s having a fantastic year on the circuit, earning big money and leading the standings. Too immersed in his success and enjoying bachelorhood, he’s not interested in getting serious. But when a woman he’s never seen before shows up with a baby she claims is his, Billy’s world is turned inside out.

Erika Baylor, a PhD grad student, never planned to be a single mom, but when her cousin dies in a car accident, orphaning her infant son, Erika steps forward. She’ll help to care for her 4-month-old nephew until the baby can be reunited with his dad. She doesn’t expect the dad to be cocky, infuriating, and utterly irresistible.

Billy never thought he wanted to be a father, but looking into the eyes of the baby who is supposedly his—and whose blue eyes mirror his own—he’s hooked. But he’s hooked on the woman who’s holding the baby too…