This never ceases to amaze us!

Kim Kardashian hit the gym on Wednesday, and rather than hitting the shower immediately after her workout, the reality TV star ran some errands in Calabasas, showcasing her giant booty in a pair of black spandex. She looked fantastic, but we still can't believe how she's built. I mean, this almost makes Nicki Minaj's "Anaconda" album cover look like amateur hour...

While Kim has been busy shooting interviews for Kourtney and Khloe Take The Hamptons and going to events for her line of sunless tanning creams, she has yet to take the ALS Ice Bucket Challenge, despite nominations from a number of celebs. We're waiting, Kimmy!