Personal Demon ( Otherworld #8) by Kelley Armstrong-Used

Half-demon tabloid reporter Hope Adams has a secret. Like full demons, she loves chaos. She thrives on it. She needs it.
Most of the time, Hope feeds the hunger by helping the interracial council. But it’s never enough. So when Benicio Cortez offers her a job infiltrating a gang of young supernaturals, she thinks she’s found the perfect solution. Instead, she finds a tinderbox of greed, desire and ambition. And when it ignites, a world is going to explode.