The actress, who plays Niki Sanders in the hit series, frolicked on the sand in a black string bikini, accompanied by her fiancé actor Hayes MacArthur.

The star is set to feature in the upcoming thriller Obsessed alongside Beyonce Knowles and Idris Elba.

Ali Larter Candid Bikini Pictures

Ali Larter is on the cover of Lucky Magazine once again (she was on the March 2007 cover) in its May 2008 issue. Here’s what she had to say fashion-wise:

On her style: “I like my clothes to be able to take on my mood rather than tell me my mood. When something looks great on me, I don’t even question it. I just buy it, because who knows when I’ll find the next just-right thing?”

On wearing a gigantic new engagement ring to the cover shoot: “I’ve never been a huge jewelry girl, but I’m never taking this off.” (She’s engaged to longtime boyfriend, actor Hayes MacArthur.)

To enter to win Ali’s cover look, visit LuckyMag.com.

Ali Larter in Lucky Magazine