Excerpt from this article (OMG the photos!):
While Kylie Jenner has asserted that her apparently enhanced lips are natural, teenagers have taken to harming theirs to duplicate the Keeping Up With the Kardashians star’s puffy-pouty look.
If you put your the lips into a small glass container like a shot glass and suck as hard as possible, you can get them to briefly swell in a way that looks like you’ve just had a cosmetic injection. But the results of this do-it-yourself method can also be disastrous, with lips heavily bruised and even tearing.
Many people posted pictures and videos of their own debacles under the hashtag #KylieJennerChallenge, which took off Sunday evening.