Gamiani, ou une nuit d’excès (Gamiani, or A Night of Excess), widely assumed to have been written by Alfred de Musset, is one of the best-known and most-illustrated of French erotic novels. Based on de Musset’s experiences with George Sand and her lesbian lover, Gamiani opens with Alcide watching Countess Gamiani and her young lover Fanny enjoying one another’s bodies. Very much aroused, Alcide reveals himself and joins them, and they spend the rest of their time together sharing their intimate stories and re-enacting scenes from them.
Devéria’s explicit coloured plates for the first edition of Gamiani were no doubt one reason for its initial and lasting success.
Gamiani has been constantly in print in French; if you would like to read it in English then either the edition published in 2003 by the Erotic Print Society (with illustrations by Vania Zouravliov) or the one published by Harper Perennial in 2007 are both reasonable translations.