Christina Hobbs and Lauren Billings, who go by the pseudonym Christina Lauren, have A LOT of sexy books under their belt, but Beautiful Strangerreally takes the cake. The hero and heroine meet at a nightclub and begin a friends with benefits relationship in which they have sex in places where they can be caught at any moment and really push their boundaries for passion. Let's just say there's a particularly steamy scene at a certain New York library.