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"What baby bump? Just two weeks after she welcomed daughter Jaxie Taylor McKee, Teen Mom 3&amp;apos;s Mackenzie Douthit is back to her flat tummy -- no workout necessary.&amp;#xA0;\r\n\r\n&amp;quot;Two weeks later,&amp;quot; she captioned the shocking before and after photo. &amp;quot;All my muscle is gone; (. But dr said I could starting working out again today; ). Woo. Time to get my six pack back.&amp;quot;&amp;#xA0;\r\nThe 19-year-old cheerleader has plenty of experience fending off pregnancy weight. The Miami, Oklahoma native welcomed son Gannon with now-husband Josh McKee in September 2011, which was covered on season 4 of MTV&amp;apos;s 16 and Pregnant.\r\n\r\n\r\nDouthit and McKee went on to star in the MTV spin-off, Teen Mom 3, which was cancelled after only one season.&amp;#xA0;\r\n\r\nBut six packs are certainly not the only thing on Douthit&amp;apos;s mind. The overjoyed mom shared a precious photo of her sleeping newborn Jaxie on Valentine&amp;apos;s Day, surrounded by a pink fuzzy blanket and wearing a giant pink flower on her head.\r\n&amp;quot;[Our] little valentine,&amp;quot; she captioned the pic.&amp;#xA0;"^^<http://www.w3.org/2001/XMLSchema#string>
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