Kimora Lee Simmons has a blast on the beach with her kids Ming Lee and Aoki Lee in St Barths on December 22, 2012. Credit: Jason Winslow / Splash News

With a body and an attitude like hers, it's not likely Kimora Lee Simmons  will stay single for long!

One month after announcing her split from actor Djimon Hounsou, the former Baby Phat designer showed off her slim bikini body while vacationing in St. Barts Dec. 22. Wearing a red two-piece and a gold belly chain, the 37-year-old flashed her megawatt smile as she frolicked in the water with daughters Ming, 12, and Aoki, 10, and son Kenzo, 3.

"Wishing you all a fabulous, happy, merry Christmas!" the former model tweeted. "Much love from my family to yours." The entrepreneur also shared a picture of her children posing with wives Ellen DeGeneres and Portia de Rossi, who are also vacationing in the French West Indies.

After Hounsou, 48, announced their split Nov. 21, Simmons assured her Twitter followers that they have vowed to remain amicable. "The truth is Djimon and I have been separated for some time," she wrote. "We have remained happy, loving, co-parenting friends and family. We all have much to be thankful for."

Prior to her nearly six-year relationship with Hounsou, Simmons was married to Def Jam founder Russell Simmons from 1998 until 2006; their divorce was finalized in 2009.