»Adolescence is a privileged time for the revelation of perverse organisation. We propose to illustrate it using the Memoirs of the Abbot de Choisy dressed as a woman « (1687-1695), that J. Lacan invited us to read. Articulated with the maternal imaginary, the transvestite practice of Choisy attests to a denial of castration and to the identification of the subject to the phallus. Through the maintenance of a phallicisation of the penis, where the fetish dominates, the puberty innovation is disavowed and the Female is not illustrated. For him, a fetishistic strategy was the only answer to the his mother’s death.»