Twin 70-year-old sisters in Amsterdam have retired after nearly 50 years of being prostitutes. Louise and Martine Fokkens claim they slept with 355,000 men total, between the two of them, during their careers. Louise said that in her old age some of the positions are too painful while Martine said it's tough to attract new partners. The two originally began their careers as prostitutes to survive financially. Louise said they started back before the sex trade was invaded by "eastern European mafia," adding, "It is very different now. We used to sit in the windows with clothes on. Today they are totally naked. There are few Dutch women and no sense of community these days." The sisters were the subject of a documentary film last year called Meet the Fokkens and have a book about their careers as prostitutes called "The Ladies of Amsterdam." (Daily Mail)