Kylie and Kendall Jenner Rock Thigh-High Slits to Golden Globes After-Party, Chow Down on Pizza

Check out Kylie and Kendall's head-turning looks at the NBC Golden Globes after-party.

It's not a party without a member of the Kardashian-Jenner clan present.

Kendall and Kylie Jenner made an appearance at NBCUniversal's Golden Globes after-party at the Beverly Hilton Hotel on Sunday night in Beverly Hills, California, hitting the red carpet in sexy styles. Both 21-year-old Kendall and 19-year-old Kylie sported dresses with thigh-high slits, with Kylie also showing plenty of cleavage in her sparkly gown custom made by LaBourjoisie.

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Kylie was definitely feeling her look, posing for plenty of fierce Snapchats with both Kendall in her orange silk Paule Ka dress, and their good friend, 20-year-old Hailey Baldwin. Baldwin donned a girly pink Elie Saab gown for the festivities.

Later, the Keeping Up With the Kardashians stars didn’t let their formal wear stop them from indulging in some delicious-looking pizza at the after-party. The two weren't shy about it, a source tells ET, "attacking the pizza trays and putting multiple slices in their hand."

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"Sister date," Kylie Instagrammed about the evening.

Watch the video below to see the best, worst and weirdest moments of the 2017 Golden Globes.

Additional reporting by Steve Wilks