The Sex and the City actress has been rumoured for the role of Elena in the upcoming adaptation of the EL James erotic novel.
"No one has told me about that, but I thoroughly enjoyed the book," she is quoted as saying in The Sun.
She elaborated on being a fan of the book, and added that it has had a positive effect on older women.
"It's fun - whatever turns you on. All these women of a certain age are finally having fun and what's wrong with that? We're all adults."
Fifty Shades of Grey has been a monumental success throughout 2012, with Universal and Focus Features buying the rights to a film version.
Emma Roberts and Lucy Hale have been linked to the lead Ana role in the film. True Blood actor Alexander Skarsgård has expressed a desire to play Christian Grey.
The Social Network and Moneyball producers Mike De Luca and Dana Brunetti will oversee the film adaptation.
Kim Cattrall recently stated that she considers herself "no expert" on sex, despite her role as man-eater Samantha Jones in Sex and the City.