Real Housewives’ Kim Zolciak is expecting twins with husband Kroy Biermann

Real Housewives of Atlanta star Kim Zolciak revealed she is expecting twins with husband Kroy Biermann.

“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.

The new babies will join older siblings Kroy Jr., Kash, Brielle and Ariana. Kim and Kroy have been especially — ahem — productive within the past few years. When the new babies come, there will be four kids under the age of three!

Kim said she knows the Zolciak-Biermann household will be particularly crazy once the twins come, but she looks forward to the challenge.

“I can’t believe I am going to be a mom to six children. It’s going to be very busy but it’s a dream come true.”

Right now, the family is split with two girls and two boys, but Kim revealed earlier in her pregnancy that she’s keeping her fingers crossed for another little girl.

“I personally would love a little girl because Brielle’s going to be 18 soon, Ariana’s six years away from being 18,” Kim said on the season finale of Don’t Be Tardy after learning of her pregnancy. “And I’ll be in a house with three boys possibly and Kroy? That’s a life of four-wheelers and football.”

Now her odds have improved… Maybe they can even keep the numbers even with one boy and one girl.

Double congrats to the expectant parents!

Tune into E! News at 7/6 p.m. CST for an exclusive interview with Kim and a look at her sonogram.