Kim Kardashian rocked a black-as-night dress at the Noon by Noor event in West Hollywood Wednesday night.

The fashion label's launch party at celeb hot spot Sunset Towers turned into a night that was all about Kim -- her fiance, Kris Humphries, attended (though he looked more casual in a T-shirt and jeans), and Kim's best bud Brittny Gastineau partied with her too.

Kim Tweeted Thursday: "So fun last night! @JonathanCheban @SimonHuck @BrittGastineau @KrisHumphries like old times! LOL"

At the event, Kris couldn't keep his hands off Kim! He even put his arms around her on the red carpet -- too cute!

Check out video of AnnaLynne McCord and more stars at the bash after the jump!