A couple of years back, my co-author Eunice and I started work on a new erotic novel, told in two parallel narrative streams: odd-numbered chapters taking place in Buffalo, New York in the present day, and even-numbered chapters taking place in London in 1871. The even-numbered chapters follow a Victorian doctor struggling to find a cure for furor uterinus, the formal name for “nymphomania;” the even-numbered chapters, a group of college friends who find his diaries and decide to replicat...