The Keeping Up With The Kardashians star, 33, took to Instagram yesterday (4 January) to post two revealing selfies taken with friend Blac Chyna.
In one, Kim and her pal flaunt their bottoms in a bathroom mirror - and, for once, Kim's famous bum looked relatively smaller!
While their shapely bums definitely take centre stage in the snap, Kim's toned tum is also clear to see.
In the second photo, their taut abs are on display - you'd never guess that Kim gave birth to her first child, North, just six months ago.
In leggings and sports bra, Kim's hourglass figure is something she's worked hard for since becoming a mummy.
Alongside the snaps, Kim wrote the message: "Getting right for the new year."
She has made no secret of the fact that her slimmed down figure is down to following the Atkins diet and working out in the gym.
In October, Kim posted another revealing snap of herself in a high-cut swimsuit, with the caption "no filter".
And, In a recent chat with fans online, Kim told them: "I want to stay healthy and get in better shape for 2014!"
We're sure fiancé Kanye West is just as impressed with the results of her hard work as we are!
What do you think of Kim's post-baby body? Tell us what you think in the comment box below!