Cusps

Rodney Brody, a single father, has a life-changing experience when he takes his family on a three-year tour to Hawaii for NSA. There, he meets Kerry, a submissive gay Aussie grad student who opens his eyes to a world of BDSM sex he didn't know existed.
If NSA finds out, Rod will lose his top-secret clearance and his job. But he doesn't want to deceive his teenage daughters, who are both coping with the stresses of adolescence. Liza yearns to express her blossoming sexuality, while Samantha is waiting for her body to catch up with her desires. Threading a careful path while exploring the unfamiliar dynamics of gay sex, Rodney reveals his secret to those closest to his heart. Three lives on cusps of major change must join together in support.

This book is 5th in a series. Each novel is complete in itself and makes for enjoyable reading, but for those who wish to delve into the origins of things at this point in history, the entire series provides a continuous narrative. As they grow, and as their children grow, Rodney's and Meg's lives must adapt to changes they desire as well as changes that take them by surprise.