This article complicates the idea that lesbian and gay kinship is based primarily on friendship, voluntarism and being free from duty and obligation. It also offers a more nuanced understanding of wills as a rich source of evidence for making claims about kinship, family and relationships. It analyses conversations about will-writing with fifteen older lesbians and gay men, taken from interviews which formed part of a wider socio-legal study on the intersection of ageing, gender and sexuality. The analysis identifies a (...) wide range of kinship formations and composition going beyond “family of choice” narratives, and also both connections and disconnections between ties of love and affection and disposal of assets in wills. Participants’ will-writing reflected four types of prioritisation: prioritising children; prioritising friends; prioritising siblings; mixed priorities. In contrast with accounts of “families of choice” as being duty-free, a sense of duty, especially towards biological family members, was evident in a number of interviews. I suggest that wills can sometimes be a rich source of evidence about kinship, but only when analysis takes into account the complexities and contingencies which can be involved. (shrink)