Data, research, scientific formulae—Annabelle Coffey is completely at ease with all of them. Men, not so much. But that’s all going to change after she asks Dr. Charles Douglas, the postdoctoral fellow in her lab, to have sex with her. Charles is not only beautiful, he is also adorably awkward, British, brilliant, and nice. What are the odds he’d turn her down?

Very high, as it happens. Something to do with that whole student/teacher/ethics thing. But in a few weeks, Annie will graduate. As soon as she does, the unlikely friendship that’s developing between them can turn physical—just until Annie leaves for graduate school. Yet nothing could have prepared either Annie or Charles for chemistry like this, or for what happens when a simple exercise in mutual pleasure turns into something as exhilarating and infernally complicated as love.