Stacy Keibler, George Clooney Not Expecting Baby: Actress Shows Stunning Six Pack

Stacy Keibler shut down speculation that she is pregnant with George Clooney's baby on Thursday.

Keibler posted a photo on Twitter of her and a friend working out at a gym. The 32-year-old former wrestler appears smiling and revealing her impressive six pack abs.

Rumors of her pregnancy began when she was photographed at George Clooney's home in Lake Como, Italy, with what appeared to be a baby bump.

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She has never addressed the rumors but a source told TMZ that they were “100 percent false.”

She has always been athletic.

"I started dancing and playing sports at a young age, and then I got into cheerleading and I've always had that," she told Us Magazine. "But even at 15 I was going to the gym. I've just always been conscious of being healthy and I'm really very balanced. I like to eat a lot so I have to work out a lot to balance it out."

The model and actress has been dating George Clooney since July 2011.

Watch the video below to see the photo that sparked the pregnancy rumors: