This article looks at the sexual transactions of young people from the point of view of professionals from different fields of social work who are responsible for their socio-educational follow-up. Through the analysis of five focus groups and one individual interview, involving a total of 34 people, the article examines the prevalence of gender norms in their discourse. It highlights how these discourses perpetuate the representation according to which the security and respectability of sexuality rests mainly on the responsibility of girls, thus reproducing a representation of gender relations based on the heterosexual norm and the gender order.