Demon's Embrace — Elle James

As part of the NYPD's special taskforce, Agent Katya Danske cleans up the mess when creatures of the night run amok. But lately she's been distracted by one paranorm in particular: her wickedly sexy partner, Blaise Michaels. For the sake of her professional reputation, Katya should end the affair with the demon co-worker--if only her body didn't crave his touch so deeply....

Then a mysterious amulet falls into her hands, and Katya becomes the target of a vengeful demon who will stop at nothing to get it back. When she begins to exhibit unexplained powers, Katya needs Blaise more than ever to help her control the energy--and to face up to a truth she never could have imagined.