The Sins of the Cities of the Plain
The Sins of the Cities of the Plain; or, The Recollections of a Mary-Ann, with Short Essays on Sodomy and Tribadism, by the pseudonymous "Jack Saul", is one of the first exclusively homosexual works of pornographic literature published in English. The book was first published in 1881 by William Lazenby, who printed 250 copies.
Source: Wikipedia — The Sins of the Cities of the Plain (CC BY-SA 4.0)