That's according to Scott Disick, who revealed on a recent episode of Keeping Up With The Kardashians it can take Kylie, 17, a fair bit of time making sure her lips are as plump as she likes them.
He said: "Have you seen her do her lipstick? It takes like 40 minutes and then she like pulls one lip, pushes one out. I don't understand why everybody thinks it's so cute to duck [your lips] out!"
Scott then joked: "You should want your nose to almost hit your lip. Get it up there! Plump her up!"
Kylie actually agreed!
The youngest member of the Kardashian-Jenner clan has been very vocal in the past about not having had lip surgery and instead using clever makeup tactics to enhance her pout.
She said in November: "I'm kind of sick of it. My pictures, I palp them out a lot. I think big lips are awesome. I love lip liner and over lining my lips."
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