This paper re-examines qualitative data from a study of marginalization processes operating on the basis of sexual orientation in the workplace. The analysis of stereotypes against gays and lesbians revealed the porosity of the line between statements that can be considered either as homophobia and heterosexism, or as sexism. While noting the impossibility to analytically separate the social representations of sexuality from those of gender, the article adopts an intersectional approach to highlight the interconnected mechanisms that construct sexual and gender normativity in the workplace.