Sex is our oldest obsession. For as long as we've been doing it, it has been used as a mark of decline and a measure of progress. It has been at the centre of rituals and responsible for revolutions. We make money from it, hide behind it, prohibit and promote it. It relaxes us, revolts us, hurts us and helps us. But whatever we think about it, however we do it, it defines us. -- publisher's website (last viewed 24/01/2024).