Both Nicole Richie and Ashlee Simpson showed off a little skin south of the border this weekend as they strutted their stuff in some skimpy swimwear.
Mother-of-two Richie, who just turned 30, proved that age is nothing but a number while sporting a black-two piece during a girls' getaway in Los Cabos with a few friends, including Samantha Ronson and Juliette Lewis.
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Meanwhile, Simpson could be seen in a black polka-dot bikini as she lounged poolside in Cabo San Lucas.
While son Bronx wasn't around, it was still a bit of a family affair, with her dad Joe and sister Jessica on hand. Also lounging around? Simpson's new man Vincent Piazza.
And get this. At one point over the weekend, these two lovely ladies actually met up for a little lunch. Hey, when you're both in the same general area, why not?
All of this, of course, leads to the most important question of all: Who looks better in a bikini? Sound off in the comments!

Avril Lavigne really has extended her French Riviera bikini vacation into the realm of the 'thank you very much', with yet another romp aboard the S.S. Hottie, this time, in a lovely shade of violet, to flash her petite but sextastically tight bikini body for the benefit of oglers with telescopic lenses everywhere. While I can't actually peel my eyes from shots of this little Cannuckian diva's frontside, I must admit, my very favorite view may be the visual of her Mediterranean-doused bottomside -- oh, to be a body of water allowed to lap thy waves upon such earthly delights. Say what you will about this sk8ter girl, she vacations well. Enjoy.
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