Captivation - Rivers Sisters, #1

Spencer Drake needs a model, and Colleen Rivers applies for the job. She's near the end of her career, but this campaign, for Captivation perfume, calls to her. Except Spencer is no ordinary man. And Colleen is no ordinary woman. They're both hiding who they are, but Colleen stands to lose more than a job if the truth spills out. Colleen is part of a family of witches that has been hidden from the world for centuries.
Spencer's family tracks and records magic. The consequences are severe for unregistered beings. Her family's biggest secret becomes his only mission. A man used to getting what he wants rarely fights fair. But a woman with her world on the line never will.