Does the commodification of sperm reinforce the weight of biological narratives for kinship? On the one hand, sperm banks promote values of control based on the primacy of biological filiation. On the other, French lesbian families using clinical donor insemination in foreign countries pursue an objective of standardization: they wish to be seen as “true” families. Feeling that bilateral filiation is conditioned by alliance, they are not interested in the biogenetic design services offered by the human reproduction market.