Kim Kardashian is flapper fabulous!

The reality TV star showed off some sexy '20s style for Eva Longoria's themed birthday party this weekend in L.A. -- where she looked gorgeous in a shimmery silver dress and fur wrap.

Kim shared a couple photos from the bash on her Twitter, including a shot of her with Heidi Klum and another with sister Khloe Kardashian and the birthday girl herself.

Eva turns 36 tomorrow.

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