Our hearts are melting seeing this shot which Kim captioned: "My little stinker is waiting to show daddy her costume. Halloween has started early this morning."
Clearly 16-month old North was scampering around a great deal, because a few minutes earlier Kim posted the below shot of her - but didn't quite manage to capture her in the frame!
"A skunk is on the loose!!!!" she captioned it. Too cute!
Earlier today, Kim posted a picture of herself all dressed up as a leopard in a tight, see-through catsuit. But it looks like she was just reminiscing about her costume in 2010...
Posting it online, she confessed to her fans that it was a throwback. Never mind, we can't wait to see what she comes up with this year!
Kim and husband Kanye welcomed North, their first child together, on 15 June in 2013. The high-profile couple tied the knot in a private ceremony on Saturday 24 May at the 16th century Belvedere Fort in Florence.
Meanwhile, celebs across the pond have gone costume mad for Halloween this year.
Singer Katy Perry put her own cheesy twist on the festivities by dressing as a giant Cheeto! last night.
In the best costume ever, Katy was covered from head-to-toe with just her face on show as she made her way into How To Lose A Guy In 10 Days star Kate Hudson's Hollywood Halloween bash.
Friends star Courteney Cox gave guests a fright in her spooky ensemble with her best creepy doll impression, painting herself white and donning a plaited blonde wig while Johnny McDaid transformed into Dracula.
Along with a photo of herself and her fiancé in their Halloween getup, Courteney tweeted: "All dolled up and ready to go out."
We can't wait to see more snaps from the stars as the night rumbles on!
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Check out our fave celebrity Halloween costumes here: