Kim Kardashian shared an impossibly sweet picture of her 7-month-old daughter North West and Kourtney Kardashian's baby girl Penelope, 18 months, in an Instagram photo on Friday, Jan. 24 Credit: courtesy of Kim Kardashian

Cousin bonding! Kim Kardashian's baby girl already has herself a best friend -- cousin Penelope! The Keeping Up With the Kardashians star shared an adorable picture of her 7-month-old daughter North with Kourtney Kardashian's little girl Penelope, 18 months, on Friday, Jan. 24.

"BFF'S," Kardashian, 33, wrote simply via Instagram. In the precious family snapshot, Kim and Kanye West's baby girl is seen sitting in front of her older cousin. She's sporting a white onesie, yellow bib, and has her light brown locks swept across her forehead. Kourtney and Scott Disick's cutie pie -- who could be big brother Mason's twin! -- meanwhile, is wearing a grey sweater while wrapping her arms around Nori. 

The night before, Kardashian made an appearance on Jimmy Kimmel Live, and shared her wedding plans with fiance West, 36. "We will be getting married this summer, hopefully, in Paris," the first-time mom told host Jimmy Kimmel. "We love it there." Last weekend, the couple made a quick trip to Paris together. 

Kourtney, on the other hand, recently traveled south of the border to Mexico with her family. The mother-daughter duo were photographed poolside with Kourtney rocking a black two-piece bikini and Penelope sporting a zebra-print two-piece. Disick, 30, and Mason, 4, were also on hand for the getaway at Joe Francis' house casa aramara.