Kim Zolciak Kim Zolciak

Real Housewives of Atlanta star Kim Zolciak is getting ready to welcome not one but two babies later this year.

Zolciak and her husband, NFL player Kroy Biermann, are expecting twins, the reality star tells E! Online. "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."

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The babies will be the fifth and sixth children for Zolciak. "It's going to be very busy but it's a dream come true," she told E!.

Zolciak and Biermann have two sons together — Kroy Jr., 2, and Kash, 1. Zolciak also hastwo daughters — Brielle, 16, and Ariana, 12 — from previous relationships.