Kylie Jenner's lips have been a hot topic on the internet over the past year or so - from the surgery rumours, to the Youtube tutorials showing people trying to emulate them.
But now a kind of worrying trend has emerged showing teenagers trying to get Kylie's pout - using bottle tops.
The #KylieJennerChallenge hashtag was trending on Twitter for most of today, as people tried to give themselves DIY lip jobs using bottle tops, and shared the results on social media. Apparently you put the lid over your lips and then suck out all the air, causing the lips to swell up. Don't do it though - we are advising NO-ONE IN THEIR RIGHT MIND to try this. It looks dangerous.
WARNING: Some of these images might gross you out a bit - or leave your lips feeling a bit sore. Yes, even from just looking at them.
Users on Twitter also expressed their concern over the trend - which is a bit worrying, especially considering the story of Brittany Forster, whose attempts to plump her lips using a product purchased online went horribly wrong.
Cosmetic surgeon Pordiis Kjartansdottir told the Metro that any kind of DIY lip-plumping trick was extremely dangerous:
"I can definitely say that this would be dangerous even just to try it, and especially somebody does it more than once.
She warned: ‘The lips turn blue because blood fills up and they could easily become infected and lose all sensation".
Gross! Guys, just use lipliner if you want a big pout, OK!? That's what Kylie Jenner says she does.