Dirty Filthy Fix by Laurelin Paige is Book 5.5 in the "Fixed" series. This tells the story of Nathan and Trisha. This was a really hot and quick read. Trisha is living a double life of sorts with being the professional working women but then later puts a mask on an becomes something much hotter. Never really being found out until Nathan....then things heat up more.
I have really enjoyed Ms. Paige's book and always look forward to reading them.