Kim Zolciak, Real Housewife and real housewife of Kroy Biermann, just had son Kash on August 15th, yet she looks like she’s already gotten back into fighting trim.

In a photo tweeted by her older daughter, Brielle, Kim looks slim and healthy in a black tank and comfy pants, but she’s not giving away her baby-belly-busting secret just yet. She does say on her Twitter account that genetics, breastfeeding, and chasing her other children around plays a part in losing the weight, however.

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Kim Zolciak-Biermann
@Kimzolciak

Awe Thx love muffin! #sneakingpicsofme RT @BrielleZolciak seriously.. who looks like this after 2 wks of having a baby? http://t.co/TFnJtgDb

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5 days ago via UberSocial for BlackBerry · powered by @socialditto

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Kim Zolciak-Biermann
@Kimzolciak

Lol! True! RT @TripWellington: @Kimzolciak@briellezolciak good genetics! And prob bc momma works her bootie off running around all day!

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5 days ago via UberSocial for BlackBerry · powered by @socialditto

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Kim Zolciak-Biermann
@Kimzolciak

Lol RT @Kayla_lw: @Kimzolciak you look amazing! Are you sure you gave birth or was he delivered by a stork?! #hotmama

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5 days ago via UberSocial for BlackBerry · powered by @socialditto

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Kim Zolciak-Biermann
@Kimzolciak

Chasing KJ around helps! RT @LuvnMyFlawsNAll: @Kimzolciak how do you bounce back so quickly after childbirth?

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5 days ago via UberSocial for BlackBerry · powered by @socialditto