Molly Sims Shows Off Her Itty-Bitty Bikini Style on Vacation: 'Girls Trip Activated'

Molly Sims/instagram

Girls just want to have fun — and wear cute bikinis! Just ask Molly Sims.

On Saturday, the 49-year-old actress, model and mom of three shared an Instagram carousel giving her followers a peek into her glamorous vacation to Cabo San Lucas, Mexico, and the stylist swimwear wardrobe she packed.

The photo dump tarted with a solo shot of Sims in her hotel room sporting an itty-bitty black bikini, accessorized with layers of necklaces, rings, bracelets and earrings. The second photo showed a glimpse at their resort, with teal towels and individualized tote bags for her and all her besties. Photo number three showed a selfie of her and one of her friends, Michelle Carlson, and photo four showed her and another friend, Robyn Casady, posing by the pool.

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Sims finished off the carousel with another photo in her black bikini, this time outside, more poolside pics with her friends, a pic of her in her Zimmerman pool cover-up and a photo of a cocktail with one of her friend's faces printed out and placed on a paper straw.

The star captioned the photo: "Girls trip: activated 🌴🍹👙Celebrating our bestie @michellecarlson02 turning 40 forever!! 😜🔥 Austin meets Los Angeles and a bit of NYC. Vamos!💃🏼"

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The star then followed up that post with another carousel showing more snaps of their trip — and of courser more bikini photos.

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The multi-photo post started with a picture of Sims posing next to one of her old friends. Sims is in a teeny-tiny pink plaid bikini while her bestie, Carlson, is in a plunging red-hot one-piece.

Sims also included a few group shots in the carousel as well as a series of selfies in various tropical locations showing off her pink bikini.

"Vanderbilt Freshman '91 and still going! 💋🙌🏻💃🏼," she captioned the post.

So what's Sims' secret to looking and feeling her best? The mom to 7-year-old daughter Scarlett May and sons Grey Douglas, 5, and Brooks Alan, 10 talks a lot about wellness trends, style, beauty and fitness on her weekly podcast Lipstick on the Rim alongside her best friend Emese Gormley.