Ever since the erotic book series, "Fifty Shades of Grey" was purchased by Universal/Focus Features for a film adaptation, many have been buzzing about who will star in it! "Twilight" fans have expressed their desire to see Kristen Stewart and Robert Pattinson take on the roles of Anastasia Steele and Christian Grey. It seems appropriate since the story initially started as "Twilight" fan fiction entitled "Master of the Universe". The sexy story is far from restrained so audiences can expect it to be one of the hottest films to hit screens in some time. Now Stewart herself has expressed an interest in "Fifty Shades of Grey" and even admitted that Pattinson (who she's been dating for the last three years) has been talking about it! She tells Entertainment Weekly:

"It's so funny -- I heard about it yesterday," she said. "Rob and Wyck (Godrey), our producer, were talking about it! I've heard its quite sexy -- very titillating."

When she was asked if she would read the steamy series herself, she replied: "Hell, yeah!"

The sultry plot follows a 21-year-old literature student who is shy, clumsy, and sexually inexperienced (much like Bella Swan). When she interviews a 27-year-old billionaire for her school paper, she falls for him (literally and figuratively). She is almost tormented by the gray-eyed mogul and is taken with his confidence. The two meet again when Grey appears at the hardware store she works in. She is intrigued by his purchases: rope, wide masking tape, and cable ties. She wonders what the items are for. Hint: they're for sex. No matter how hard she tries to stay away from him, she fails. While his demanding tone should be off-putting, she finds it seductive.

They eventually become entangled (literally and figuratively) in the binds of raw/uninhibited passion. Their lusty encounters take an interesting turn when Christen presents Anastasia with a contract that names him her "Dominant". If the two star they'll have to be willing to simulate lots and lots of on-screen sex. This includes engaging in S&M, passionate elevator scenes, hair pulling, bathtub action, and oh my the list goes on.

No official casting news has been announced.

Contributed by International Business Times