The dance scene featuring Jessica Alba in 2005's "Sin City" was the hottest scene of the decade, even without the nudity. Nine years and two kids later, will "Sin City 2: A Dame to Kill For" show Nancy Callahan take the next step?

Jessica Alba has confessed that shooting the dance scene nude was on the table. After all, Nancy Callahan was a stripper. It would have been a momentous occasion, as Alba has been voted the sexiest woman in the world in various polls yet she has never been nude in the movies.

"In the press conference for the first movie, Alba was asked whether she was aware of how the character was portrayed in the comics:  "Oh, she was bottomless too. I wanted to do this movie because Robert Rodriguez was directing it, first and foremost. I didn't really know it was a comic book when I read [something], when I saw that he was directing something. I just tell my agents every month, 'What's Robert doing? I want to do something with him.' And Lee, one of my agents, said, 'You've got an opportunity.' I said, 'Excellent!' So I took that opportunity and ran with it.

At that time I looked at the graphic novel and I saw the pictures. I then found out that she was a stripper and she was bottomless and topless. You know, nudity was an option. We could have done it if we wanted to."

Now for Sin City 2, Alba returns as Nancy Callahan. But the real Jessica Alba is now the mother of two kids. She shared a few tidbits with Vulture:

"I had to learn a bunch of dance sequences for it. I do a lot more dancing in this one."

She mentioned that she needed three months to prepare this time around, and adds: "[It was] kind of crazy. It was very, very difficult, and you'll see why." 

This statement debunks a rumor from Life and Style, quoting a source: "She(Alba) was crushed when filming began and she didn't have her original body back so she told producers she wanted a body double. 

"Her body is incredible, but it's not good enough. She's cut out carbs and does the P90X Ab Ripper twice a day, but she still isn't happy. She has been chain-smoking lately to keep her appetite at bay. Jessica struggled with an eating disorder in her teens and when she is under pressure to look good for a part, she can slip back into extreme behaviour."

"Sin City 2: A Dame To Kill For" will hit theaters on August 22, 2014!