Britney Spears Cosmopolitan August 2010

Britney Spears is the cover girl of the August 2010 issue of Cosmopolitan magazine. Inside, the pop princess, 28, talks about her sons, Sean Preston and Jayden James and her life as a mom.

"If my sons told me they wanted to be in the entertainment business, I'd lock them in their rooms until they turned 30," she says in Cosmo's new Q&A.

I'm dreading the moment when my sons ask me: how babies are made
If I had to wear one style of shoes for the rest of my life, I'd choose: flip-flops
Stage fright is something that: still bothers me
The one stage prop I wish I still had is: the flying pink SUV from my Do Somethin' video
If a guy wants to make me laugh, all he has to do is: fall down
If my sons told me they wanted to be in the entertainment business, I'd: lock them in their rooms until they turned 30
The thought of turning 30 in a year and a half makes me: reflect on my life so far
The TV show I'd most love to make a cameo on is: Gossip Girl.
Even though I've already accomplished so much, I'm driven to achieve more because: I genuinely love what I do and the company I keep is so much fun.
My preferred fashion style when I'm performing is: exciting, different and always stands out, but when I'm offstage, it's: flattering yet comfortable
I feel most powerful when: I'm working out
I attribute my career's longevity most to: hard work
Having people constantly taking my picture is: something I always knew would come with the job I chose
When I'm feeling down, I find that I'm always cheered up by: coffee & ice cream
The person whose opinion matters most to me is: my family
At this point in my life, what's most important to me in a guy is: personality
The most difficult adjustment to motherhood I had to make was: teaching my boys potty training.
If an up-and-coming young performer asked me for advice, I'd tell her: life is short, have fun.
The most heroic (crossed out heroic and wrote horrific) thing I've ever done is: broken my knee.
The one thing about men and relationships I wish I'd known 10 years ago is: to say what you want. speak your mind!
I know it's a little weird, but I think: it's hard to cook
The best advice I ever got was: be yourself!