The good natured reality star took on the challenge extended by Jimmy Kimmel, which saw them racing to see who could change more babies within ninety seconds.
For each doll, the pair had to take a nappy off, wipe them, put a new happy on and then put them to bed in a nearby cot.
And guess who won? KIM!!
The mother-of-one managed to change four babies compared to Jimmy's three, receiving an Oscar statuette in return.
And she did it all while wearing high heels and a seriously low-cut outfit.
Kim shows off her nappy changing skills (video):
Kim, 33, became a mum for the first time in June last year when she gave birth to North West, her daughter with now-husband Kanye West.
Perhaps it's no surprise that Kim is such a pro when it comes to nappies as earlier this year she admitted it was one part of having a baby that Kanye wasn't so keen to experience...
Appearing on the Ellen DeGeneres Show, reality star Kim said: "He's not a diaper-changing kind of guy - and I'm okay with that. Although he would if it's an emergency."
Kim revealed that she actually enjoyed changing her baby's nappy as it was a "bonding" experience. "I love that time. I know it sounds crazy, but I love my time with her when she's on the changing table.
"She tries to talk so much and I really enjoy that bonding time when I'm with her."
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