Zoe Saldana for Women's Health U.K. Zoe Saldana for Women's Health U.K.

Zoe Saldana may be expecting twins with new hubby Marco Perego, but you'd never know it from her photos in the September issue of Women's Health U.K.

Saldana posed completely nude for the magazine, with only a rib cage tattoo covering up her skin. TheGuardians of the Galaxy star, 36, tells Women's Health: "This past year I've had to start letting go. My body dictated it as if saying, 'Slow the f--- down!'"

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As a result, Saldana says her body is "less toned. I do look in the mirror and see things I don't want." But in some ways, she's never felt better about her appearance.

"I do feel beautiful in a way that even when I was working out a whole lot, I sometimes didn't," Saldana tells the magazine. "Because there have been times that I was really slender and I didn't like that I sometimes looked a little too muscular and flat-chested. You'll never be completely happy, so at the end of the day it's like, f--- it. Just be happy, regardless."

Check out more of Saldana's sultry pics here, via E! Online.

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