Lindsey Vonn: Naked Pull-ups ... In Body Paint

If Tiger Woods wasn't kickin' himself before ...

Here's Olympic skiiing legend Lindsey Vonn getting in a quick workout while on the set of her Sports Illustrated Swimsuit Edition body paint shoot ... and it's awesome.

Not only is she basically naked -- and beasting out with a set of full grown-ass woman pull-ups -- but she's also doing it while sporting a pair of high heels.