Beyonce wants to stay bootylicious.
"I always say, 'I don't want to lose my curves.' I like firm curves," the singer, 28, tells the February issue of Allure. "You can never do enough squats, you can never do enough sit-ups. I like for women to look feminine."
She also opens up about having babies with Jay-Z, 40, whom she wed in April 2008.
See gorgeous star wedding photos
"I definitely want to have a child, but I know from my nephew it's a lot," she says, referring to little sis Solange's son, Daniel, 5.
"I hope that these things will just happen naturally. I still haven't had time to relax," continues Beyonce, who has been touring with her "I Am...Sasha Fierce" album.
Check out Beyonce's style evolution, and more photos from her Allure cover shoot
Before starting a family, she's having fun -- and getting into trouble, she says. When asked about her good girl reputation, Beyonce insists, "Trust me, I'm not at all." (Still, she admits a fave hobby is playing Spades online -- "I love it... it's really fun because no one knows it's me.")
Adds Beyonce of being a role model, “It is hard living up to people thinking that about you.”