“Acquired female-body syndrome,” the strange illness that turns men's bodies into women's. To get to the bottom of it, we made contact with people said to have developed it. They look female by any measure but insist they're men inside — so to check, we ran physical examinations, then sensitivity tests, and eventually went as far as sex. First time wearing makeup, first time in women's clothes, and then boldly on to blowjobs and threesomes. Having discovered what pleasure feels like as a woman, they stop fighting it and give themselves over completely. A five-hour compilation of university students, office workers and a gambler, all turned female.