Sex and sexuality are two obsessions of the 19th century. As the literature of this time, influenced by the Victorian hypocritical morality, rejects these subjects, considered as “immoral”, the relation of any form of sexual act is consequently absent in the works of 19th century writers, even of those who consider themselves as realists. However, the work of a writer like Emile Zola cannot overlook this problem, so important for naturalism. For Zola, sex is a vital activity and should be shown in works of art. Therefore, to give his writings the appearance of decency, Zola uses metaphors that “sexualise” some elements of the world of his novels, like plants, animals, things, places and everyday occupations. This allows him to show, in an i...