Could the Kardashian babies get any cuter? On Friday, Kim shared a sweet photo of her and Khloé's daughters, 6-month-old Chicago and 3-month-old True, during playtime. Along with the adorable shot of the duo, Kim wrote, "Best friends for life!!!! 💕." Since the Kardashian sisters are well-known for being incredibly close, it's no shock that their daughters will likely grow up to be the same. The cousins are four months apart, but that obviously doesn't stop them from spending some quality tummy time with one another! We can't wait to see more of the two as they get older and even more adorable.