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Sun, sand and stretching ... sexy model Stephanie Seymour likes to do it all!

The 44-year-old former Sports Illustrated cover girl frolicked in the beautiful waters of St. Barth with her young daughter Lily and hubby Peter Brant.

Ms. Seymour must be taking frequent dips in the fountain of youth because she looks fabulous. What a bikini body!

See more of the brunette beauty in our gallery below.

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She may be a retired supermodel, but as far as we're concerned, Stephanie Seymour still knows how to work it!

The 44-year-old brunette beauty and her family were snapped on the beach in St. Barth the day after Christmas, and we're blown away by how amazing she looks. Seymour was also joined by daughter Lily, son Harry and her hubby Peter Brant, and when they weren't soaking up the sun, they were snorkeling and enjoying the warm waters of Saline Beach.

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She looks amazing!

Stephanie Seymour took her stunning figure to the beach in St. Barts where she was accompanied by her husband billionaire industrialist Peter Brant and their two kids Harry and Lily.

The 44-year-old former Sports Illustrated model showed that she hasn't lost her amazing beach body at her age. We can see why she chose the sand over the snow this holiday season!

Stephanie Seymour is a smoking hot babe from every angle!

The former Victoria's Secret model flaunted her sexy curves while vacationing with her family in Saint Barth.

The 43-year-old stunner is divorced from her multi-millionaire hubby Peter Brant but the family still reserves time to vacation together. In fact, she and her ex look pretty cozy ... guess the lady's just affectionate. Remember last year when she kissed her 18-year-old son Peter, Jr. while frolicking in the waves? Hmmm ...

Model Stephanie Seymour has been having a blast in St. Barts, where she showed off a polka-dot bikini while frolicking in the waves with her kids!

Seymour, who was once engaged to Guns N Roses frontman Axl Rose, is currently married to billionaire Peter Brant.

The couple and their three children are currently staying in the Caribbean island's most expensive rental house, named The Dune, which rents for $28,000 a day.