Kim Zolciak Is Expecting Twins Photo credit: Taylor Hill/Getty Images When Kim Zolciak tweeted that she was making a "VERY exciting and personal announcement," she wasn't kidding. The "Don't be Tardy" star, 35, and her husband, Atlanta Falcons player Kroy Biermann, 27, are expecting twins, she announced today. PHOTOS: Who Else Is Expecting This Summer? I'm having twins and I couldn't be more excited. I was completely shocked. I had no idea," she told E! It was a natural conception, but twins do run in the family, so I guess I shouldn't have been surprised. Zolciak, a Bravo star who first appeared on "The Real Housewives of Atlanta," is already the mother of four children, including two sons, Kroy Jr., 2, and Kash Kade, 9 months, with Biermann. The NFL player also adopted her daughters, Brielle and Ariana, from previous relationships. "I can't believe I am going to be a mom to six children," she said. It's going to be very busy but it's a dream come true.