Twilight novels.
Fifty Shades of Grey is set mostly in Seattle in the US, and tells the story of the deepening relationship between Anastasia Steele, a collage, and Christian Grey, a young graduate and business magnate, and in the pages of Fifty Shades of Grey can be found explicit erotic scenes.
Those explicit erotic scenes in the book include elements of sexual practices such as bondage, sadism, masochism and discipline, so when you get into reading Fifty Shades of Grey don't be surprised that you start feeling a little turned on.
