Kimora Lee Simmons Rocks a Bikini in St. Barts!

Kimora Lee Simmons soaks up the sun in a teeny bikini while on a family vacation on Wednesday (December 26) in St. Barts.

The 37-year-old fashion guru did some sunbathing on the sandy beach before taking a dip in the ocean.

PHOTOS: Check out the latest pics of Kimora Lee Simmons

This past week, Kimora has been on vacation with her three children Ming, Aoki, and Kenzo. She was spotted showing off her amazing bikini body while at the beach in St. Barts over her Christmas break.