@kimzolciakbeirmann / Instagram 1 / 7
@kimzolciakbeirmann / Instagram 1 / 7

By Gena Oppenheim

Wow! Former "Real Housewives of Atlanta" star Kim Zolciak is looking better than ever after giving birth to twins just five months ago.

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On March 26, the reality-TV starlet posted a selfie of her toned midsection on Instagram with the caption: "I think I see an ab!!!! hey after 6 kids I'll take it!!"

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Her flat belly comes as even more of a surprise since she had no qualms about showing off how large her bump had grown during her pregnancy, posting a midriff-baring photo back in November 2013.

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"Sooooo with all the request I finally decided to post My baby bump today! The twins will [be] here this month and we are soooo excited and I'm soooo over being pregnant! #countingdownthedays," the mom of six wrote next to the revealing shot.

On Nov. 25, Kim announced the birth of her babies Kane and Kaia Biermann on social media.