Of course, hearing this doesn't come as too much of a surprise.
After all, Alba shared a similar sentiment when the first Sin City was released back in 2005.
"I don't do nudity. I just don't," she told Elle magazine at the time. "Maybe that makes me a bad actress. Maybe I won't get hired in some things. But I have too much anxiety."
Meanwhile, Sin City: A Dame to Kill For is set to hit theaters on Aug. 22.
Directed by Robert Rodriguez and Frank Miller, the movie also stars original castmembers Bruce Willis, Rosario Dawson and Mickey Rourke.
The film will also feature appearances by Josh Brolin, Alba's good friend Jaime King, Joseph Gordon-Levitt, Eva Green, Ray Liotta and Jeremy Piven.
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