Kim Kardashian Wears Cleavage

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Happy birthday, Mrs. West!

Wearing a slinky, cleavage-baring dress that complimented her hourglass figure, Kim Kardashian celebrated her 34th birthday at the posh Venetian Hotel and Casino's TAO nightclub in Las Vegas on Friday night with family and friends.

The list included husband and rapper , mother Kris Jenner and sister Khloé Kardashian, who shared a video of the guess of honor posing on the red carpet, Jonathan Cheban and Simon Huck, both of whom have appeared on the family's reality series, Keeping Up With the Kardashians and its spinoffs, and her glam squad, makeup artist Mario Dedivanovic and hair stylist Jen Atkin.

The birthday girl wore a ruched white dress with a V-neck waist-skimming plunging neckline, a favorite style worn at past events and on the show.

'Vega$ Nights have begun,' Kim said on her Instagram page.

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At TAO, the reality star was presented with a four-tier white birthday cake containing the words 'Happy birthday Mrs. West.' Kim has often celebrated her birthday at the popular nightclub.

Before the party, the guests watched Kanye perform at the 2014 Life Is Beautiful Festival in Downtown Las Vegas.

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Kanye proposed to Kim on her 33rd birthday last year, at AT&T Park (home of the San Francisco Giants and one of the sites of the ongoing 2014 MLB World Series). The two wed this past May.

On the red carpet, Kim talked to E! News about a personalized birthday gift her hubby had given her, in addition to a recent romantic Hawaii vacation, created with the help of their 1-year-old daughter, .

'He got me this purse and it was really pretty painted,' she said. 'And my computer was open next to the gift and I was trying to figure out why it was there and I pressed play and it was a video of her actually painting it. She spent hours getting paint all over herself and painting this purse and he captured it all. It was so, so sweet.'

Kim also talked about her and West's plans for a second child, saying, 'I've been thinking about it for a while, but you know, I'm trying.' She had made similar comments in September.

Check out more photos and videos from Kim's birthday party below.

-Additional reporting by Jacquie Levy Check out Kourtney & Khloé Take the Hamptons, premiering Nov. 2 at 9 p.m. only on E! PHOTOS: Kim Kardashian and Kanye West's wedding album RELATED VIDEOS: