Razor by K. B. Cutter and Margie Church
ASIN B008FSCT1W 
Story Rating: 3.5 out of 5 paddles
Sting Factor (kink): 3.5 out of 5
Blurb:
Amy and Bryce don’t live the Dominant/submissive lifestyle, but Bryce acts every bit the Dom in the bedroom. And Amy’s had enough. Enlisting her best friend’s help is a drastic move. Will inviting Raine into her marriage destroy it? How will she cope when Bryce and Raine become intimate?
Though Bryce doubts he’ll ever become a switch, he’s determined to make Amy happy. Months later, he struggles to keep an emotional distance from Raine. His journey of self-awareness is anything but predictable or vanilla.
After only a few scenes with Bryce, Raine’s roles as Domme and best friend blur. Her ideals about love and marriage shift. She questions her own motives at every turn. Can she get out of this relationship triangle unscathed?
Three people with different motives come together to form a very contemporary relationship. Who will get what they want, and who will be forever changed?
Review:
Razor gives a unique look at the start of a triad relationship and the joy and difficulties that come along with it. Amy and Bryce have a strong marriage and a solid commitment to each other, introducing Raine into the equation means things have to change. It is nice to see this type of relationship start with a couple and then evolve rather than the usual three people falling into to at the same time.