'We are thinking about going into a big nightclub separately like an hour or so apart like we were single and find each other and seduce each other like a one night stand.
Ms Hayman said she found this worrying - adding that teenagers may they think they're just talking to another 16-year-old 'but it's actually a 30 or 45-year-old, or a 50-year-old on the other side of the world'.
On Teen Dating And More, which is a closed group with more than 2,200 members that FEMAIL joined, a fresh-faced boy claimed he wanted a 'girl to f*** so bad', while another urged people to post their Snapchat ID On the closed Teen Dating group, which has more than 10,000 members, one of the admins warns against naked photos, spamming and teasing others.
But it didn't stop another posting a link to her porn films However, one user seemed to disregard the rules in a post that read: 'Hello guys.
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But this is the kind of material that is alarmingly prevalent on teen dating groups on Facebook, where children claiming to be as young as 12 post messages looking for new people to chat to and date - something which a children's charity has called 'a paedophile's playground'.
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On average, the Child Exploitation and Online Protection Centre is notified of one serious incident of sexting activity every day by schools, parents or pupils, involving serious concerns about child protection.'If you send them a naked selfie, one person can see it in 20 seconds.