Le Rut ou la pudeur éteinte  

"Only twenty years later did there finally appear , in Holland in 1676 , the first erotic work in French actually in the novel form: Blessebois' Le Rut ou la pudeur éteinte, a work of revenge, and the form was immediately take over for the use of equally violent religious satire, in Chavigny's Venus in the Cloister."--The Horn Book (1964) by Gershon Legman

"This same Pierre de Blessebois was also the author of another work: Le Rut, which contains an indiscreet and candid account of his relations with a Mile. Scay. In addition, there are extant a number of scandalous stories about Alençon which the author terms a modern Sodom." --The Erotic History of France (1933) by Henry L. Marchand