Kim Zolciak Expecting Twins

Kim Zolciak and Kroy Biermann arrive at the 2012 NBC Universal Summer Press Day at The Langham Huntington Hotel and Spa in Pasadena, Calif. on April 18, 2012 -- Getty Premium

"Don't Be Tardy" star Kim Zolciak is expecting twins.

Kim, who gave birth to her second son with husband Kroy Biermannn just a year ago, revealed her double baby news on Monday.

"I'm having twins and I couldn't be more excited. I was completely shocked. I had no idea. It was a natural conception, but twins do run in the family, so I guess I shouldn't have been surprised," she told E! News.

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The twins will bring the family's total to six children. Kim has two daughters - Brielle, 16, and Ariana 12 - from a previous relationship (both were adopted by Kroy) and two sons - Kroy Jr. 2, and Kash, 1.

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