TEENAGERS will be told "rape is not just about violent attacks by strangers" as part of a hard-hitting campaign on sexual abuse.

Many young people dismiss the idea of "date-rape", believing the offence only occurs on rare occasions, the Government said.

And campaigners say one in three teenage girls have experience sexual violence from a boyfriend.

Nick Clegg is launching a push to challenge the myths around attacks, including a TV, cinema and online advertising campaign.

The campaign, funded by the Home Office, builds on the Government's wider 'This is Abuse' campaign, which aims to help teenagers develop healthy relationships.

Mr Clegg said: "This hard-hitting campaign shows that rape is not just about violent attacks by strangers. We want to bring this issue out into the open and get young people talking about the importance of consent. The campaign will give teenagers the facts and support they need to recognise abuse and form healthy relationships."

A third of teenage girls and 16 per cent of boys report that they have experienced some form of sexual violence from a boyfriend or girlfriend and the highest proportion of sexual abuse, 66 per cent, is perpetrated by young people under 18 years old, according to NSPCC research.

The adverts are aimed at 13-18-year-olds and feature a teenage girl being coerced into sex by a boy as a party goes on downstairs. The girl says 'I don't want to', but the boy persists.

A double of the boy then appears, watching the scene from behind an invisible wall. The viewer is asked, 'If you could see yourself, would you see rape?'. The adverts will run for a month on youth TV channels, starting on Monday night, during programmes such as E4's Skins.