This paper argues that reading science fiction can help us understand contemporary debates in feminist psychology and envisage its future. It examines how science fiction, by extrapolating from accepted scientific realities, generates conceptual uncertainties which resemble those existing in feminist psychology around objectivity. The paper then explores how science fiction's stylistic uncertainties are paralleled in feminist psychology. Science fiction's suspensions between science and non-science, literature and non-literature, suggest that interdisciplinarity may be less about dissolving or negotiating disciplinary boundaries, as feminist psychology assumes, and more about contesting or transgressing them. Science fiction also offers feminist psychology valuable models for stylistic rule-breaking, for writing more speculatively and pleasurably, and for operating with two `ends' simultaneously-one extending dominant concepts of gendered subjectivities, the other breaking with them.