The highly anticipated film adaptation for E.L. James S&M novel, "Fifty Shades of Grey" is said to hit theatres by summer of 2014. With casting still far off, here are ten good reasons for Universal Studios to take in "Twilight" star, Kristen Stewart as Anastasia Steele.

 Kristen Stewart would unlikely pass as an inexperienced woman when it comes to sex. As proven by the threesome in "On the Road", Kristen can definitely do a sexy scene and a full on nude one as well. Obviously, Stewart would have no problem playing the role of the 22-year old college student, Anastasia Steele who had gotten into a contract with 27-year old entrepreneur, Christian Grey.

While some "Twilight" fans may disagree with the casting, Stewart is the best choice to play Anastasia Steele. Kristen may not be well-versed in the realm of "Fifty Shades" but the actress has heard of and read some parts of the book. In an interview back in 2012, Stewart even goes on to share her thoughts on the book.

"I've skimmed parts of it," said Stewart, adding, "When I read the first few pages describing her messy hair, I was like, 'This is so strange.' But it's just so raunchy! I mean, obviously, everyone knows that. But when I see people reading it on planes and stuff, I'm genuinely creeped out. Like, you're basically just reading porn right now! Get that blanket off your lap!"

Putting that thought aside, check out the slideshow and see why Stewart should be playing the role of Ana.

Producers Refuse to Give a Green Light to ‘Fifty Shades of Grey’ without Kristen Stewart in the Line-up

"She's flying to Oz for Valentine's Day," a source told Now. "Until then, they'll Skype."

3. Have a romantic day in Aussie tourist spots
Though a travel to their favorite spot in London is one big option for Robert and Kristen, the celebrity couple can decide to stay in Australia and explore the outback. Robert’s latest film, “The Rover” is set at the Australian desert. It would be fun for Rob to treat his girl by getting her dusty in the Australian Outback. To check out other places Robsten can go on Valentine’s Day, click here.

Though this may sound appealing, the lovers could also spend Valentine’s Day in the very expensive but very beautiful Great Barrier Reef. Having been declared both the highest paid actor and actress in Hollywood, the lovers can sure afford it. It would be fun to walk the same white, fine sand threaded by the Royals on their honeymoon, right?

Three: Undeniably, Stewart looks like Anastasia Steele with her brunette out-of-bed hair, sparkly eyes and the “girl-next-door” feel plus the sex goddess aura.

Four: Stewart has already heard of the book and might have even read it alongside Robert Pattinson.

Five: Fans love Stewart. As of current, Kristen is on the top list of fan favourites to play the role of Ana. In the lead beside Stewart is Alexis Bledel of “Gilmore Girls.”

Six: Anastasia Steele has the same style as Kristen Stewart. In the book, Ana rarely dresses up and is described as a “Chuck Taylor” girl. Ironically, Stewart has the same laid-back look.