EVER left a book behind in a hotel? If you have there’s a very good chance it was smutty ‘mummy porn’ novel Fifty Shades of Grey.

Londoner EL James’ story about kinky sex has topped a list put together by budget hotel chain Travelodge of books left behind by guests.

Some 7,000 copies of Fifty Shades books have been recovered from Travelodge hotel rooms across the country this year.

Other popular novels left behind include Stieg Larsson’s The Girl With The Dragon Tattoo and Suzanne Collins’ The Hunger Games.

The only book in the top 10 not by James, Larsson or Collins is The Help by Kathryn Stockett.

In previous years the most frequently left-behind books have included works by Katie Price, Piers Morgan and Alastair Campbell.

Travelodge spokeswoman Shakila Ahmed said: “It is interesting to see for the first time ever that our top 10 books left behind index is not being dominated by celebrity biographies and chick lit books which it has done in the past.

“Trilogies have dominated the charts this year with Fifty Shades of Grey topping the poll. So popular is this book, our hotel staff have reported that business and leisure customers of all ages are reading this trilogy. Customers cannot get enough of Mr Grey and Miss Steele, they are even reading the book whilst eating breakfast and dinner.”

During the past 12 months, more than 21,000 books have been left behind in 36,500 Travelodge hotel rooms.