They grow up so fast!
Kendall Jenner, 16, and her sister Kylie, 15, have become household names thanks to their stint on their family's E! reality series Keeping Up With the Kardashians and its various spinoffs, but back in the day, they were wide-eyed little girls that sister Khloe Kardashian says couldn't have been cuter.
"Kylie Instagrammed the CUTEST pic of her and Kendall yesterday so I obviously had to steal it for Throwback Thursday. Could they have been any more adorable?!" Khloe, 28, tweeted Thursday along with the picture of her half-sisters, both donning Adidas tees and matching braids. "I still can't get over how grown up they are now. Man, how time flies! I seriously feel like this was only yesterday!"
In the July 2012 issue of Seventeen, Kendall -- now a fashion contributor to the magazine along with her sister -- opened up about growing up in the extended Kardashian-Jenner clan, which also includes Kourtney Kardashian, 33, and Kim Kardashian, 31.
"Kylie is my best friend; we have so much fun," model Kendall -- who admits she used to fight ferociously with her sister in their younger years -- told Seventeen. "I also like working with her because she makes me more comfortable around people and I feel like she brings out the best in me."