Kylie Jenner, 17, FINALLY admits to lip fillers after big sister Khloe Kardashian urges her to stop lying.

Kylie Jenner has finally confirmed one of the Kardashian family's worst kept secrets - she has had lip injections. 

The 17-year-old has never admitted to the cosmetic procedure before, despite being questioned about her changing appearance for years. 

'I have had temporary lip fillers,' she says in an E! clip from Keeping Up With The Kardashians.

Before and after: The 17-year-old pictured on left with fillers and on right, in 2013, before the procedure

She said 'It's just something that I wanted to do.'

Kylie said she 'wasn't ready' to talk directly to the press about the procedure and instead decided not to 'confirm or deny' it when asked by reporters.  

In another clip, her sister Khloe Kardashian advises that she 'cop to it' adding: 'If you avoid the question, you're going to look like a liar.'