In the first programme of this four-part cross-platform series, straight-talking (and swiftly disappearing before our very eyes) Anna Richardson, along with a team of sexual health experts, travel to schools across the country to give students ground-breaking lessons in sex education. Tonight, students from a secondary school in Norfolk get live interactive lessons in anatomy. Using live models, they find out everything they need to know about the female body. Anna investigates how easy access to pornography via the internet is affecting young people - in particular their body image, self-esteem and attitudes to sex - and campaigns for better legislation to protect children from porn. Plus, Anna meets 21-year-old porn actor Damian Duke, who exposes the reality behind the fantasy world of porn. Continues tomorrow.