Kim Zolciak, Kroy Biermann expecting second baby

Kim Zolciak hosts the New Years Eve celebration at Beauty & Essex on Dec. 31, 2011, in New York.
(CBS News) Kim Zolciak of "Real Housewives of Atlanta" fame has another baby on the way.

The reality TV star confirmed via Twitter that she and Atlanta Falcons player Kroy Biermann are expecting.

Pictures: Celebrity Baby Bumps

The news comes less than a year after Zolciak, 33, and Biermann, 26, welcomed their son, Kroy Jagger Jr.

Zolciak told Life & Style magazine that she's about four months along.

"Kroy and I are so excited," she said. "To decide we wanted to get pregnant again and have it happen so quickly was such a blessing ... I'm so excited that KJ will have a little buddy."

Zolciak has two daughters, Brielle, 15, and Ariana, 9, from a previous marriage.

Zolciak and Biermann wed last November. The ceremony will air as part of the new reality show, "Don't Be Tardy for the Wedding," which debuts April 26 on Bravo.

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