Nicole Richie, Jessica Alba Flaunt Sexy Bikini Bods in St Barts [PHOTOS]: Starlets Suffer Wardrobe Malfunction Scares in Skimpy Beach Bikinis Sans-Hubby Joel Madden

Hollywood socialite BFFs Nicole Richie and Jessica Alba were recently spotted vacationing on the beautiful beaches of St. Barts in the Caribbean with some close family and friends over the weekend (sans Richie's hubby, Joel Madden). The girls seemed to be enjoying themselves while lounging on the white sands in skimpy, barely-there bikinis! Despite almost suffering near-explicit wardrobe malfunctions, both starlets still managed to keep their sexy two-piece garbs fully intact! Check out the pics from Richie and Alba's tropical getaway below.

The beach babes were spotted in St. Barts on Friday (April 5), vacationing with several close friends. While Alba's hubby Cash Warren was in attendance, Richie's rocker husband Joel Madden (of the pop-punk band Good Charlotte) was in Australia for the Logie Awards (where he snagged Most Popular New Male Talent).  Despite their potential bikini mishaps, both Richie and Alba still looked stunning!

Radar Online reports that Richie has been working hard with celeb trainer Tracy Anderson to get back her sexy bikini bod. Meanwhile, Alba  recently confessed to Women's Health magazine that she actually "hates" exercising - "I like doing dance classes. That's fun... Like hip-hop class, mixed with like core pilates-type exercises. And sometimes I do sprint intervals just because I hate working out."