Las Vegas will never be the same again: Kim Kardashian and Kris Humphries will celebrate their impending nuptials with simultaneous all-weekend bachelor and bachelorette parties in Sin City on the same weekend in adjacent resort-casino complexes!

And HollywoodLife.com can exclusively reveal when it’s all going down!

According to sources, the festivities will kick off Friday July 22 and continue throughout the weekend. Kim will host a dinner and blowout bash at TAO nightclub, located inside The Venetian Casino, Resort & Hotel. Kris, meanwhile, will bid adieu to bachelorhood with a party at LAVO nightclub, located inside The Palazzo Las Vegas.

The Venetian and The Palazzo are connected via interior walkways and a shopping mall, which will make it easy for the couple’s guests to dart between the various gatherings planned for the weekend, as well as their hotel suites.

As for the guest list, sources tell HollywoodLife.com that Kris’s will be heavy on is basketball buddies, as well as the male folk of the Kardashian clan, such as Kim’s brother Rob, younger sister Khloe‘s husband Lamar Odom and older sister Kourtney‘s partner, Scott Disick.

Kim’s guest list, meanwhile, includes mom Kris Jenner, her sisters Kourtney and Khloe, VH1 reality TV star La La Vasquez and Gastineau Glamour jewelry designer Brittny Gastineau.

— David Caplan

More Kim-K Gossip Here

1. Summer Fitness Challenge Week 2: Want A Beach Body Like Kim Kardashian’s? Try These 3 Simple Exercises!
2. Kim Kardashian Spotted Carrying Red Alexander McQueen Gown — Is This A Bridesmaids Dress?
3. Kim Kardashian Wedding Band — Did She Pick Out Her Ring Without Kris Humphries In LA?