Children aged 12 to 13 have made or been part of sexually explicit videos , research shows ( file pic ) More than one in ten children aged 12 to 13 have made or been part of a sexually explicit video , according to shocking new research . Nearly one in ten in the same age group are worried that they are addicted to porn , a survey of nearly 700 children for the NSPCC 's ChildLine service found . And nearly a fifth said they had seen porn images that had shocked or upset them . Dame Esther Rantzen , the founder of ChildLine , said children as young as 11 had contacted the service with concerns about pornography . She said : 'Young people are turning to the internet to learn about sex and relationships . 'We know they are frequently stumbling across porn , often unintentionally , and they are telling us very clearly that this is having a damaging and upsetting effect on them . 'Girls in particular have said they feel like they have to look and behave like porn stars to be liked by boys . 'We absolutely have to talk to young people about sex , love , respect and consent as soon as we feel they are ready , to ensure that they gain a proper perspective between real life relationships and the fantasy world of porn . ' Peter Liver , director of ChildLine , said children reported that watching porn made them feel depressed , gave them body image issues and put pressure on them to engage in sex acts they are not ready for . A report by charity ChildWise in 2013/14 revealed that website Pornhub was among the top five favourite sites named by boys aged 11-16 . Dame Esther Rantzen , the founder of ChildLine , said children as young as 11 had contacted the service with concerns about pornography . And young people post approximately 18,000 messages regarding exposure to porn on the ChildLine discussion forums every month . Mr Liver said : 'The Government recently proposed plans for children aged 11 upwards to be taught about rape and sexual consent as part of PSHE in schools . 'This would include discussion around what they have learnt from watching pornography . 'Across society , we need to remove the embarrassment and shame that exists around talking about porn - which is why we have launched a ChildLine campaign to help young people to make more informed choices . '
Children aged 12 and 13 say they have been in sexually explicit videos . Nearly one in ten say they are worried that they are addicted to porn . Nearly a fifth were shocked or upset by porn , NSPCC 's ChildLine found .