BBC Three meets David, who has been practising chastity for over 100 days. Today he is being unlocked. He explains why he has chosen chastity, and our experts give their view.

BBC Three meets Sabrina who's looking for an extreme sexual experience where she has no safe word. She explains why she is taking the risk, and our experts give their view.

BBC Three meets the people who use racial abuse for sexual pleasure, and explores how this kind of behaviour can lead to cultural contradictions and moral dilemmas. Our experts give their view.