Shades of a chameleon - J Daniels

When undercover FBI agent Margo Hunter took on the investigation of a murdered exotic dancer, she never dreamed the unsettling assignment might be her last. When Margo drops out of sight, her friend Special Agent Kimberla Bacon assumes her identity and takes over the case. Jacob White is also working undercover on the case, and when the two meet they agree to feign romantic interest in each other to maintain their cover. But as the case heats up, so do their feelings. When Jacob realises Kimberla is in danger, he realises he may have to break her heart in order to save her life.