Britney Spears Rocks Skimpy Bikini, Wears Diamond Belly Ring

Britney Spears enjoying the sun while showing off her bikini body at a friends house in Malibu, California on March 25, 2013. FAMEFLYNET

Britney Spears is toned, tanned and taken! The "Hold It Against Me" singer — who's slowly taken her relationship with law firm staffer David Lucado public in recent weeks — spent March 25 soaking up the sun at a friend's house in Malibu.

Wearing a striped bandeau top and blue bottoms, the 31-year-old pop star was photographed relaxing by the pool. Spears also rocked a diamond belly button ring; she's had her stomach pierced three times since 2000.

In a January 2009 interview with Glamour, Spears admitted her body has "completely" changed since giving birth to sons Sean Preston and Jayden James in 2005 and 2006, respectively. "I have had to work hard at getting it back to where it used to be," the singer told the magazine. "I used to be obsessed with working out."

Spears added that exercise isn't a "fun" experience, "so to do it every day would be horrible. Three days a week is cool, even two. It makes me feel good and feel like I’ve done something. It's important to take care of your body."

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