This book provides an original insight into how families of origin of Gay, Lesbian, Bisexual and Transgender (GLBT) people are involved in negotiating meanings and experiences of sexuality and intimacy, an underexplored dimension of queer family life. Delving into the perspectives of families of origin and showing the complexity and heterogeneity of the ways people with their different gender and sexual identities "do" families across generations, it contributes to querying the very distinction between families of origin and families of choice, and questions the (hetero)normative assumptions about forms and boundaries of family this distinction rests upon. A focus on marginal contexts, such as Southern Europe, and on marginal subjects, like bisexuals or black lesbians, is proposed as a way to challenge the universality of privileged narratives within heteronormativity, homonormativity and anglocentrism, and to reveal unexpected resources families of origin mobilise to make sense of GLBT identities and lived experiences. The book poses a crucial question: how can alliances along family ties develop on the basis of shared stories of family diversity and marginalised identities, rather than of loving (and normative) support to GLBT people in need and an advocacy in their name from a position of heterosexual privilege? This book was originally published in Journal of GLBT Family Studies.