Kim Kardashian shares heartwarming video of daughter Chicago complimenting her cousin Stormi's hair and her sweet response

Kim Kardashian took to Instagram Stories on Sunday to share a really cute video of her daughter Chicago and Kylie Jenner's daughter Stormi. 

The two cousins were being wheeled around in a buggy and making silly noises at one another. 

All of a sudden, Chicago, two, gently taps Stormi, also two, on the head and says: 'I like you hair' and Stormi replies 'thank-you' much to the adults' delight. 

Cute: Kim Kardashian shared a heartwarming video of daughter Chicago, two, complimenting her cousin Stormi's hair as the tot sweetly replied: 'thank you' on Instagram on Sunday

Kind: Chicago gently touched Stormi's head during the tender moment 

Kim, 39, had written over the top of the video: 'Stormi and Chi. These two' and some love heart emojis. 

Chicago wore a white top which was lined with feathers and Stormi matched her by also wearing white, no doubt carefully planned by their parents. 

The video comes after Kylie, 22, showed her daughter's sweet side by sharing a video of her test her with the chocolate patience test which is sweeping the internet. 

Close bond: Kim, 39, had written over the top of the video: 'Stormi and Chi. These two' and some love heart emojis

Matching: Chicago wore a white top which was lined with feathers and Stormi matched her by also wearing white, no doubt carefully planned by their parents

Earlier this month, she had put a bowl of chocolate in front of the toddler, telling her: 'You can only have three of them. I'm gonna give you three of them.' 

Stormi lunged toward the bowl, before her mom stopped her, adding: 'But wait! You have to wait 'til mommy comes back, ok? I have to go to the bathroom.'

'You're gonna wait for mommy?' Kylie asked, as her daughter adorably and enthusiastically responded, 'Yea!'

Family: Kim (left) and Kylie (right) are mums to Chicago and Stormi respectively (pictured in February)

She sat still for a few seconds before putting up her hands like she wanted to grab a handful, but practiced restraint.

'Ooh! Chocolates,' Stormi said softly while leaning over the bowl, before sitting back up and singing, 'Patience, patience!'

Kylie then posted a sweet photo of her daughter cuddling up to her on the couch, writing: 'my little love.' 

The only child excitedly shouted and jumped up and down as her mom returned from the bathroom, giving her some candy.

Social experiment: Kylie recently posted an adorable video of herself teaching Stormi about patience with a mini social experiment that involved candy