This article considers Beauvoir’s gesture towards fraternité at the end of The Second Sex (1949) by focusing on her fleeting characterisation of this future as ‘an androgynous world’. Generally, either Beauvoir’s call for fraternité is dismissed as an erasure of sexual difference and is thus seen to be politically bankrupt, or fraternité is understood to realise sexual difference. This latter reading suggests that androgyny plays no role in Beauvoir’s solution to women’s oppression, while the other view often sees it as (...) one effect of fraternité. This article takes a different position by arguing that Beauvoir affirms sexual difference and commits to an androgynous future. The article argues that androgyny is an affective mood that is constitutive of an openness in the field of possibility for living sexual difference. Consequently, androgyny plays not only a central role in fraternité, but also gestures to a future beyond dimorphic sexual difference. (shrink)