She made her fortune marketing her Skinnygirl way of life.
So it is no surprise that just nine months after giving birth, Bethenny Frankel is indeed a skinny girl herself.
The 40-year-old showed off her trim and toned body in a pink bikini as she sunned herself on Miami Beach in Florida at the weekend.
With her hair protected from the sun by a straw hat, and a pair of oversized sunglasses to shade her eyes, the businesswoman looked perfectly at ease on the beach.
Former Real Housewives Of New York star Bethenny was joined by her husband Jason Hoppy, 39, with whom she has a nine-month-old daughter, Brianna.
She recently hinted that the couple were considering expanding their family once more.