Kim and Kourtney Kardashian Twin in Vintage Versace

From Harper's BAZAAR

From their legendary Christmas Eve festivities to their kids' first birthday parties, we all know the Kardashians love a good party. Last night, Kourtney Kardashian celebrated a big milestone, her 40th birthday, in a big way with an epic bash that only the Kardashians could throw. Hosted by their mom, Kris Jenner, it was a star-studded evening featuring the family's nearest and dearest including Paris Hilton, Luka Sabbat, French Montana, Kristen Noel Crawley, and Dave Chapelle.

The birthday girl picked a sexy naked dress for her big night, a sheer vintage Versace gown with some strategically placed panels to reveal some skin but not too much. Kim Kardashian also chose to match her big sister in another vintage Versace look, but opted for a black, beaded mini dress from the Fall 1997 Haute Couture show.

Much like their outfits, the party did not disappoint. From a cake depicting a nude Kourtney sitting on the edge of a pool, to engraved Don Julio bottles with Kourtney's face on them that said "most interesting to look at" (taken from an epic Keeping Up With the Kardashians scene when Kim told Kourtney she was "the least interesting to look at"), no detail was spared. Clearly, Kourtney didn't hold that scene against her younger sister.

Even the napkins included classic Kourtney moments from KUTWK like, "Kim, there's people dying," from a famous scene in which Kim loses a diamond earring from diving into the ocean while on a family vacation.

The night closed out with everyone dancing and Robin Thicke singing "Happy Birthday" with an unmasked Sia while the reality star blew out the candles on her birthday cake.

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