This article aims at discussing the origin of female sexual desire, its relationship to bisexuality, the interplay between identifications and the choice of love objects, according to the ideas of Irigaray [1], Kristeva and Butler [2]. We tried to rethink the centrality of melancholy in the constitution of gender, attributed by the authors to the patriarchal and heteronormative gender frame and to resume the ambiguities of the Freudian theory and clinic on feminine sexuality [3], so as to (re)weave the threads of a family plot, which ended up short-circuiting a patient's motherhood and her feminine sexuality experience. The "masquerade" hypothesis, as the effect of a feminine melancholy, associated with the ontology of the phallus as Lacan [4] supposes - a debate that, regarding gender, is retaken by Butler [2] and discussed by Schaffa [5] - is re-evaluated as freedom of gender constitution and a place of passage of libido and mutual enrichment between sexes, as stated by Schneider [6]