Les quatre premiers dialogues La Philosophie dans le boudoir.

She rose and greeted them, embracing both most affectionately, and squeezed Frank so ardently against her that his prick stood immediately. Finding this to be the case she took his hand and placed it beneath her dressing gown; he shuddered on discovering that it was the only article that concealed her nakedness. He pressed her belly amorously, and placing his hand at the junction of her thighs, discovered a most exquisite cunt and a clitoris erect and hard. She would not allow him to proceed further, as she only wished to see if he was sufficiently excited for the work he was intended to perform. All sitting down, they partook of some Burgundy and literally devoured a collection of books, photographs, and pictures she placed before them. They were of the most fearfully exciting character, representing lust and cruelty in every phase; the principal works being the Marquis de Sade's Justine and Juliette, in ten volumes, with their one hundred steel plates, also his Philosophie dans le Boudoir and other French works, besides English erotic books, such as Fanny Hill, The Romance of Lust, Letters from Paris, Curiosities of Flagellation, Phoebe Kissagen, The New Epicurean, and others too numerous to be mentioned ...»