text: A 16-year-old schoolboy is warning classmates to avoid the 'Kylie Jenner' challenge after being left with a bruised face when he sucked into a glass to emulate the Kardashians star's bee-stung pout. Kevin Coulton from Manchester decided to stick his mouth in the rim of a glass because 'everyone was doing it'. But the 16-year-old was left with dark bruising around his lips and chin which lasted more than three days. Scroll down for video . Kevin Coulton, 16, put his lips in the rim of a glass and blew to achieve a fuller pout. But the schoolboy was left with bruising round his chin and mouth . Now he is warning classmates not to take part in the craze sparked by beauty-conscious youths desperate for a fuller pout. 'It’s a bit stupid. Everyone’s doing it and I just thought I would too. There wasn’t really a reason,' he said. 'It really did hurt, and it went all purple and bruised straight away. It hasn’t gone down three days later. My parents were shocked. 'I did it with a glass. A lot of people say it should be done with a shot glass to do it properly. Everyone in school is doing it. 'But I want to tell people not to. It hurts and the bruising takes ages to go down.' The new craze is popular among teens desperate to emulate Kylie Jenner's bee-stung pout (pictured) Scores of youngsters have suffered similar fates after attempting what has now become known as the Kylie Jenner challenge. Capturing their failed attempts in videos and photographs, they have been seen sucking into bottles, shot glasses and plastic beakers to achieve the plumped look. Instead they were left with unsightly bruising or swelling. The craze was sparked after Jenner, 17, told fans how she used lip liner to make the most of her lips. Denying claims that she has ever had plastic surgery, she encouraged youngster not to be afraid 'to experiment' with their looks. The worrying trend dubbed the '#kyliejennerchallenge' swept social media, encouraging teens to blow their lips up to epic proportions using bottles or shot glasses (pictured)
target: Kevin Coulton, 16, from Manchester stuck his mouth in the rim of a glass .
  The schoolboy wanted to achieve a fuller pout like celebrity Kylie Jenner .
  But, like scores before him, he was left with painful bruising around lips .
  Now he is warning peers not to take part in craze sweeping social media .