Sebastian is a mystery romance and the fifth book in the series For The Love Of A Good Woman and should be read in order.

Stubborn. Bull-headed. Sexy as hell.
That was Maggie-the woman I was currently protecting.
As the owner of Reed Security, I didn't go into the field that often, but I was coerced into playing bodyguard for the trouble-making reporter.
She didn't listen to a damn thing I said and was constantly putting herself in danger. This story she was investigating was going to get her killed if she didn't learn to listen.
More troubling was the fact that I was seriously attracted to her and was having a hard time keeping my hands off her.
She was a distraction I really needed to avoid if I wanted to keep us both alive.