To say Erika Lust’s Barcelona Sex Project is masturbatory isn’t to imply that it’s self-indulgent. It simply follows the onanistic habits of six young Spaniards (three men, three women). After talking about their favourite books, music, hobbies, and sexual fantasies, they then enjoy a wank. In a market saturated with films that cram an ever-increasing body count into the action, it’s nice to watch a film where ‘one’ equals ‘fun’.