"Intensive parenting" ideologies have been increasingly disseminated in popular culture, expert discourses, and social policy. These have impacted particularly mothers owing to their actual or presumed central role in child rearing. One of the main features of these ideologies is an increasing apportioning of rights and responsibilities to families without taking into account the resources needed to sustain the work of caring according to dominant social expectations. Drawing on 20 interviews in a Portuguese female prison, this article explores how mothering is enacted by underprivileged and criminalized women. Data show a complex web of tensions between the norms implicit in "intensive parenting" ideologies and the actual practices, which imprisoned mothers can accomplish. In their mothering from prison, women enact vulnerable resistance to the penal policies that undermine their primary role in child rearing. That is, prisoners creatively negotiate a space within which they can define themselves as "good mothers."