This article analyzes the communicative and educational practices performed by female Colombian scientists self-recognized as lesbians. The objective of this study was twofold. Firstly, it seeks to understand the ways in which non-heteronormative sexualities have the potential to re-shape the production/circulation of expert knowledge; especially that which favors androcentric values. Secondly, it seeks to problematize and re-dimension the marginal place of these communicative and educational practices in relation to the production of expert knowledge. Methodologically, the study is based on an ethnographic approach to the edu-communicative practices of eight lesbian scientists in Colombia. Theoretically, it takes the feminist discussions that have studied matters of care in techno-science as a reference point for the analysis.