Kylie Jenner has gotten much older since first appearing on Keeping Up With the Kardashians, is ready to admit she might have grown up a little too quickly. Kylie posted a screen grab of herself from an early episode of her family's TV series, looking incredibly young, where she said, "I promise that I won't grow up too fast."
On Instagram, she captioned the pic, "Darnnit, Kylie!"
With her 18th birthday rapidly approaching, Kylie is getting nostalgic for her childhood!