Kim Kardashian's teenage sister opens up about lip procedure

Kim Kardashian's younger half-sister Kylie Jenner has confirmed long-running speculation that she has undergone cosmetic procedures to alter her appearance.

Jenner, 17, has long been rumoured to have changed her face by plumping up her lips, and the teenager has now confirmed she has used fillers to give herself a fuller pout.

In a clip from a new episode of her family's reality TV show Keeping Up with the Kardashians, Jenner reveals, "I have temporary lip fillers. It's just an insecurity of mine and it's what I wanted to do.. Everyone always picks us apart. I (wanted) to admit to the lips, but people are so quick to judge me on everything, so I might have tiptoed around the truth, but I didn't lie."

The admission comes a year after Jenner took to Twitter.com to deny she had undergone any work on her face, writing, "These plastic surgery rumours hurt my feelings to be honest and are kinda insulting."