TEEN TABOOS

In Programme 4, a group of teenagers tells Britain's fastest growing condom producer what they think of his wares.

What are teenagers' biggest sexual taboos? In this groundbreaking five-part series, we uncover the forbidden territories of sex and give the lowdown on facts usually shrouded beneath layers of bravado, misinformation and myth.

Young people aged 16-18 talk frankly and openly about their experiences of masturbation, sexually transmitted infections, using condoms, choosing abstinence and wondering how they 'measure up' to their friends. All the teenagers are sexually active. Whether they are in long-term relationships, happily single or into one-night stands, or are straight, gay or bisexual, they bring a wide and sometimes surprising range of experiences to the show. Experts are on hand to provide commentary and factual information.

• Programme 1: The big 'O'
• Programme 2: Sex, teens and infections
• Programme 3: Am I normal?
• Programme 4: The condom question