Cosmopolitan magazine held its second annual bikini bash at the Nikki Beach Club in South Beach, Miami over the weekend.  It was a blur of blue bikinis.

Sporting a green bikini, actress Kristin Cavallari was on hand to help get the event going.  Check out the photos below of the bikini event.

Photos:  WENN/Johnny Louis

Related Articles:

• Sports Illustrated Swimsuit 2009 Launch Party Photos
• Bikini Clad Bar Refaeli Painted On A Southwest Airlines 737 (Photos)
• Sports Illustrated Swimsuit 2009 Bar Refaeli Cover Photo
• Melody Morales: "Ghetto" Bikini Girl Sues Hawaiian Tropic Zone (PHOTOS)
• American Idol Bikini Girl Katrina Darrell Audition Video
• Faith Hill's First Ever Bikini Photo Shoot
• Miss Universe Canada HOT Bikini Shoot PHOTOS
• Kendra Wilkinson & Brittany Binger 'Sun Fun & 21' Afterparty Photos
• Victoria's Secret Marisa Miller Photo Gallery
• Kacey Montoya's Racy Bikini Photos
• Playboy Cyber Girls in Bikinis at Swimwear Miami 2008 (Photos)
• Ed Hardy 2009 Sizzling Swimwear Collection (Photos)
• Tommy Bahama Swimwear Fashion Show (Photos)

Filed under: Bikinis