09/07/2012 10:07 am ET Updated Dec 06, 2017

Kim Zolciak Post-Baby Weight Loss Is Shocking (PHOTOS, VIDEO)

First, she shocked everyone by showing off her real hair without a wig. Now, Kim Zolciak is wowing with her post-pregnancy weight loss.

Zolciak gave birth to her fourth child, Kash Kade, three weeks ago and is already flaunting an unbelievably fit frame.

Her daughter Brielle tweeted a photo of the "Real Housewives of Atlanta" star on Sept. 1. In the photo, Zolciak flaunts her major weight loss, looking shockingly slim in a tight, all-black outfit just two weeks after giving birth!

So how did she get her post-baby body? Zolciak credits her weight loss not to some fancy diet or expensive cleanse, but to good ol' mother nature:

Us Weekly reports that the new mama bemoaned about hating exercising on an episode of "RHOA."

Zolciak and footballer husband Kroy Bierman welcomed their second baby boy on Aug. 15. It is the second child for Bierman and the fourth child for Zolciak, who has two daughters from a previous relationship.

"@biermann71 and I are sooo excited to tell you baby Kash Kade arrived today!!! Baby and I are doing great!!!! #soblessed," the 34-year-old reality star tweeted last month.

The "Housewives" star and the NFL player married on 11.11.11 last November. They tied the knot in Atlanta seven months after welcoming their first son, Kroy Jagger Jr.

Even after her last pregnancy, Zolciak amazed fans with how quickly she was able to shed the pounds.

A very-pregnant Kim Zolciak poses at the Langham Huntington Hotel and Spa on April 18, 2012:
kim zolciak weight loss post baby body pregnancy



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