Saint Barth Saint Barths Saint Barts sun beach bikini waves sea American Celebrities sexy Nicole Richie hat tiny black bikini
Saint Barth Saint Barths Saint Barts sun beach bikini waves sea American Celebrities sexy Nicole Richie hat tiny black bikini
Saint Barth Saint Barths Saint Barts sun beach bikini waves sea American Celebrities sexy Nicole Richie hat tiny black bikini
Saint Barth Saint Barths Saint Barts sun beach bikini waves sea American Celebrities sexy Nicole Richie hat tiny black bikini Spread Pictures

It's the battle of the black bikinis and Nicole Richie and Jessica Alba are in a dead heat!

The super sexy moms have toned up and stripped down for a HOT vacay in St. Barth ... and we can bet EVERYONE looking at these pix is jealous -- we'd all love to be on a Caribbean island and we'd all love to look like that (or be married to someone who looks like that), right?!

Vote HERE for your favorite black bikini beauty!