In a time and age in which the use of reproductive technologies has become ordinary, masculinity and sexuality are reformulated by the logics and politics of reproductive biomedicine. While sperm donors are certainly a group of a few selected men even on a global scale, their experience of living with the effects of reproductive biomedicine’s ordinariness is epistemologically speaking important. Their lives provide insights into how reproductive biomedicine becomes an ordinary and unquestioned part of men’s daily lives. They capture how biosociality remakes masculinity and sexuality in both a moral and an embodied sense, and they show how what some would deem immoral and/or unnatural – sperm donation and donor insemination – becomes a mundane part of men’s gendered and sexualed selves. Based on an ethnography of what it means to be a sperm donor in Denmark, in this talk I will consider how sperm donors’ bodies and identities become intertwined with the socio-cultural and political dimensions of reproductive biomedicine. Asking how the making of biosocial subjects happens through an incitement to gender in terms of biomedical registers and biopolitical valuations, I will theoretically and empirically reflect on the biosociality of gender and its repercussions for contemporary scholarship.