Third of young people have unprotected drunken sex

The Sex Factor report, published by charity YouthNet, surveyed the views of more than 2,000 young people through the organisation's website, www.TheSite.org.

Almost all the young people surveyed were sexually active and more than a third of them had had sex before they were 16.

More than half of young people said they were worried about contracting sexually transmitted infections.

The report also found that a fifth of young people have gone back to a stranger's house for sex after a night out and one in ten have invited a stranger to come home with them.

A third said they were unhappy about they how they lost their virginity.

The top three reasons for regretting having sex were choosing the wrong person, being too young and being in the wrong place.

Matt Whyman, relationship expert on the charity's website, said that young people should learn about sex when they are sober.

He said: "Alcohol lowers inhibitions whatever your age, but drink combined with little or no sexual experience can mean dramatic disappointment and regret for young people, or more serious consequences like unplanned pregnancy, sexually transmitted infections or even sexual abuse."