The Kiss Principle by Gregory Ashe

Keep it simple, stupid.

After spending his whole life taking care of his family, Fernando Lopez is ready for simple. His younger brothers have grown up and moved out of the house. His mom is stable—or as close to stable as she’s ever going to get. He’s even got a shot at his dream job if he can just play his cards right.
Everything is going great until one morning, Fer finds a baby in his kitchen. And not just any baby—his brother Chuy’s infant daughter. With Chuy nowhere to be found, Fer finds himself back in the role of caregiver.
Determined not to let the new arrival disrupt his plans, Fer hires a manny to help him, and he gets more than he bargained for. Zé is sweet, patient, and…hot. Which is definitely not something Fer was prepared to deal with. Worse, Zé seems determined to show Fer that simpler isn’t necessarily better, and that there are some things in life worth fighting for. But for Fer, saying yes to Zé might mean saying no to his family—and Fer has never said no to his family.