Kim Kardashian shows off her assets in a low-cut sheer top on Monday, April 28. Credit:

Krazy kleavage! Kim Kardashian revealed her (other!) busty assets in a low-cut sheer top on Monday, April 28, while making her way into a Los Angeles studio.

Kanye West's fiancee, 33, kept it classy, though, with a tailored black tuxedo blazer and distressed denim. Not wanting to detract from her sexy plunging neckline, the star swept her long brunette tresses to the side in loose waves.

Kardashian's sexy look was considerably cleaner than her Mud Run experience, which took place on Sunday, April 26. There, the reality standout -- who concealed her face with a Coachella-style bandana -- got dirty in muddy terrain with her younger sister Khloe Kardashian. "Most relaxing weekend," North West's mommy tweeted Monday, while further explaining, "sleeping in with my babies, cooking, movies & hikes! Hope you all had a great weekend!"

Kim has been participating in grueling fitness routines ahead of her wedding to West, which is set to take place on May 24. Though the details have largely been kept a secret (even from guests!) it's clear Kim will make a bombshell bride based on her latest look.

PHOTOS: Kim's best booty moments

Tell Us: What do you think of her low-cut look?