A worrying new trend dubbed the '#kyliejennerchallenge' is sweeping social media, encouraging teens to blow their lips up to epic proportions using bottles or shot glasses.

The reportedly painful method involves participants placing their mouth over the opening of a cup, jar or other narrow vessel and sucking in until the air vacuum causes their lips to swell up - all in the hopes of emulating Kylie Jenner's bee-stung pout.

Countless teens, both boys and girls, have been sharing the disturbing results of their experiments on Twitter and Instagram, which in many cases has led to severe bruising around the mouth.

Scroll down for videos

A worrying new trend dubbed the '#kyliejennerchallenge' is sweeping social media, encouraging teens to blow their lips up to epic proportions using bottles or shot glasses (pictured)

Surprisingly, given the sheer number of teens attempting the feat, it appears the results are far from desirable.

'I screwed up,' wrote one teenage girl along with her #kyliejennerchallenge selfie, while another complained she looked 'gross'.

'Made my chin look like a hickey a week ago and I'll say I've never felt so dumb,' one disgruntled teen admitted.

'I did the #kyliejennerchallenge and my lips turned purple,' claimed yet another.

The new craze is popular among teens desperate to emulate Kylie Jenner's bee-stung pout (pictured)

The reportedly painful method involves participants placing their mouth over the opening of a cup, jar or shot glass and sucking in until the air vacuum causes their lips to swell up

Countless teens, both boys and girls, have been sharing the disturbing results of their experiments on Twitter and Instagram

Surprisingly, given the sheer number of teens attempting the feat, it appears the results are far from desirable

The method - one this journalist won't be road-testing - works by way of the airlock created in the opening of the glass or jar, which increases blood flow to the lips and causes them to swell.

Problematically, the results are said to last for hours, even days, with several people complaining that they were stuck with the after-effects for a lot longer than expected.

Plenty of Twitter users have been quick to ridicule the craze.

'Stop with that Kylie Jenner challenge it's so gross,' one wrote.

'I hate our generation. It's so dumb. Like you guys are really sticking your lips in small cups,' another ranted.

'Do people not realise they're bursting blood vessels?' another pointed out.

The method works by way of the airlock created in the opening of the glass or jar, which increases blood flow to the lips and causes them to swell

Problematically, the results are said to last for hours, even days, with several people complaining that they were stuck with the after-effects for much longer than expected

Last month, two Icelandic sisters attempted the trick by sucking into a hairspray lid, and warned others against it after the stunt went disastrously wrong.

Yrja Ás Baldvinsdottir, 18, and her sister, Bir­gitta Ás, from cReykjavik, were left with swollen and blue bruised lips.

Writing on Facebook, Yrja As said: 'I wanted to warn people against do-it-yourself lip expansion, but was really surprised and shocked that it ended up being something that loads of people were copying.

'I just wanted to try it and see what they would look like, I've never done it before, and I won't be doing it again. It was very, very painful. My lips turned blue.'

One boy expertly demonstrates just how extreme the effects can be if you try hard enough

Sore-looking red marks are visible around the lip line of this dejected experimenter

As for Kylie herself, the 17-year-old Kardashian clan member has recently denied artificially enhancing her lips, despite much speculation to the contrary.

'I haven't had plastic surgery,' she told Grazia Daily.

'I've never been under the knife. People flashback to pictures of me when I was 12 and say "Kylie's so different" but how can I look the same from 12 -18?'

Plenty of Twitter users have been quick to ridicule the craze, labelling it 'dumb' and 'gross'

'I screwed up,' wrote one teenage girl along with her #kyliejennerchallenge selfie, while another complained she looked 'gross'