The erotic novel Fifty Shades of Grey, about a young woman named Anastasia and her bondage-loving boyfriend Christian, has been jumping off shelves (and into e-book download queues) since it was released by Knopf's Vintage imprint earlier this year. Everybody's reading it, but a book this risqué makes for some awkward conversations. What if your mom is reading it? Rebecca Lee Douglas went there.  Is there book, movie, or other cultural sex trash that you ended up loving? Tell us in a comment below.