Kylie Jenner's "overlining" obsession increased after she had lip fillers.
The 18-year-old TV personality and entrepeneur - who has built up her Kylie Cosmetics empire over two years - has admitted she was always "obsessed" with lipstick, but she became more of a fan of using lip liner to accentuate her assets after she had surgery to enhance the size of her lips.
Speaking on her website thekyliejenner.com about her favourite beauty trend, the brunette beauty said: "Long before I got my lips done, I was really obsessed with lipstick. I was always trying to make my lips look bigger, but I didn't want people to know I was actually wearing lipstick.
"I started overlining my lips to see if I liked the look of them bigger. When I got my lips done, I got even more obsessed."
Meanwhile, the 'Keeping Up With the Kardashians' star has revealed her favourite lip colour from MAC Cosmetics, which sold out immediately once it was discovered what cosmetic products she used, was the inspiration behind her beauty brand.
She explained:"At the time, my favourite colour was M.A.C Whirl. I was really into it, but once everyone figured out what I was wearing, it would sell out.
"And that's how the Kylie Lip Kit came about."
Meanwhile, the youngest of the Kardashian/Jenner gang who is regularly extending her collection, which includes the original matte lipstick and lip liner duo in Exposed, Kourt K, Candy K, Koko K, Dolce K, Mary Jo K, Posy K, True Brown and 22, metallic shades King K, Heir, and Reign, gloss finish style Like, Literally and So Cute, to include more colours, amend the matte formula, the wand and the website, has revealed she is overwhelmed by the success of her business.
She said: "I never imagined it would become what it has! In the beginning, I didn't care because I was doing it for me, but it's amazing how successful it is now."