Childline: Teenagers facing 'sexting' pressure
16 October 2013 Last updated at 23:57 BST
Six out of 10 teenagers say they have been asked for sexual images or videos, an NSPCC/ChildLine poll seen by the BBC's Newsnight programme suggests.
Of those polled, 40% said they had created a sexual image or video, and about a quarter said they had sent one to someone else by text.
Sima Kotecha reports.