Apparent alliances between moral campaigners and certain feminists in opposition to pornography have been the subject of discussion both in the United States and in Britain. Drawing on a wider study of the views of women in British moral and pro-family organisations, this article examines the attitudes of such women to pornography. It then compares these views with those of anti-pornography feminists, commenting in particular on the moral reasoning underlining different perspectives. Attention to moral reasoning, it is argued, helps to further explicate the charges of ‘alliance’ between the moral lobby and anti-pornography feminists, even where such alliance is neither sought or desired. The potential difficulties and uses of an assessment of pornography as ‘moral’ concern for the development of feminist ethics are then considered. Finally, the apparent willingness of moral lobby women to express support for anti-pornography feminists is examined. The article concludes by suggesting that this support reflects both complexities of gender identification amongst moral lobby women, and, crucially, power imbalances between anti-pornography feminists and the moral lobby rooted in the institutionalisation of heterosexuality. The implications of these findings for sociologists and for feminist theory and activism are outlined.