Lindsey Vonn & Kate Beckinsale Heat Up Emmy Party

Another night, another shot of Lindsey Vonn in a smokin' hot dress in West Hollywood ... this time, hitting the Emmy party scene with Kate Beckinsale.

Vonn attended the Emmys earlier in the night in a burgundy dress -- but after a quick wardrobe change, was back on the scene at The Nice Guy.

Lindsey's worked damn hard for that physique -- besides being a world class skier, she's been showing off her squat sessions on Instagram.

You done messed up, Tiger Woods.