Light Me Up by Kristen Luciani

Because life unplanned is just…well, life.
Maya Starr is the girl with the master plan. After graduating magna cum laude, hitting the top rung of the corporate ladder at the most sought-after firm in Manhattan was her primary goal. Marriage is just an unnecessary distraction designed by society to derail her from her goals.
No need for a man when she has such an impressive collection of electronics stashed away in her nightstand drawer!
And kids? Kids are loud, sticky, whiny, and shouldn’t even be a blip on the radar until she hits the age of thirty-five. Minimally.
Zane Brandis drifts through life as the quintessential bachelor, bedding gorgeous women anxious to drop their panties for the tiniest sliver of his attention. He makes no promises and offers no strings, only mind-bending orgasms. Avoiding love keeps him shielded but lonely, and he is forever haunted by the one that got away.
When these two paths collide one sweltering night in a dingy Mexican cantina, their perspectives are changed forever, and they are left with the reality that life unplanned is just…well, life.