Brooke Burke is celebrating the arrival of her fourth child, her rep has confirmed to In Touch. She gave birth to her first son - and second child with fiancé David Charvet - at 11:31 a.m. Wednesday. The baby weighed 6 pounds, 8 ounces and was 20 1/4 inches long. "Mommy and baby are both doing great and healthy," Brooke's rep Nancy Iannios tells In Touch exclusively. David adds, "and he's really, really cute."

The couple have a daughter, Heaven Rain, who was born in January 2007, and Brooke also has two girls - Neriah, 7, and Sierra, 5 - with her first husband, plastic surgeon Dr. Garth Fisher. Brooke and David had been hoping to add a bouncing baby boy to their family. "We'd love to have a son," she admitted to In Touch last March. And when it comes to doting dads, she couldn't have picked a better partner than David. "He's very involved and protective and gentle."

Brooke recently launched her own online babystore, www.babooshbaby.com, the home of "Tauts," the post-pregnancy Belly Wrap. David recently filmed a starring role in the feature film Green Flash, set against the backdrop of professional beach volleyball.