Jennifer Aniston

Jennifer Aniston and Justin Theroux are the latest Hollywood movie stars to be linked to the EL James book 50 Shades of Grey.

Sexy film and TV star Hayden Panettiere recently revealed she loves reading and is obsessed with raunchy trilogy 'Fifty Shades of Grey' at the moment.

She told People magazine earlier: "Right now I'm reading the last book in the 'Fifty Shades' trilogy. I'm a big reader when I find a book that keeps my attention and this is definitely one of them."

Music artists are also using the book for a guide, Harry Styles of British boy band One Direction revealed recently that he has been using erotic book to improve his performance in the bedroom.

The 18-year-old singer insisted the best-selling novel - which tells the story of a billionaire introducing a young college graduate to the world of bondage and kinky sex - is "educational" and he's found the tome helpful and "interesting".

He said: "I haven't bought it, but a female friend of mine was forcing me to read it out to her the other day.

"They were like, 'Just borrow this,' and I was like, 'Hmmm'. It seems interesting. I could probably learn from it, I don't know. I feel like it's an educational and interesting read."

Are Jen and Justin preparing for the honeymoon with the book?

Perez Hilton cites a source who says:

"Jen and Justin are having the time of their life trying for a baby and Jen has been totally inspired by Fifty Shades of Grey and has acted out some of the scenes with Justin. They’re at is like crazy. She said they’ve been having wild fun with feathers and blindfolds and dirty talk."

(Image: WENN)