A Great First Day — Dean Wesley Smith

Eve Bryson, ghost agent, assigned to work with Deputy Cascade, superhero cop.
Cascade rolls nice guy, handsome stud, and superhero into a tight package. What could a horny ghost of a girl do?
Before Eve suggests a ghost affair, they experience a first day on the job together. She soon learns that lust sometimes takes a side seat to saving lives.
A Ghost of a Chance story that expands the universe. Don't miss this one if you enjoy the series. Or if you want to jump into the series for the first time.