The Roman de la Rose was a major bestseller - largely due to its robust treatment of 'natural' sexuality. This study concentrates on the ways in which Jean de Meun, in imitation of Ovid, assumed the mock-magisterium (or mastership) of love. From Latin texts and literary theory Jean derived many hermeneutic rationales and generic categorizations, without allowing any one to dominate. Alastair J. Minnis considers allegorical versus literalistic expression in the poem, its competing discourses of allegorical covering and satiric stripping, Jean's provocative use of plain and sometimes obscene language in a widely accessible French work, the challenge of its homosocial and perhaps even homoerotic constructions, the subversive effects of coital comedy within a text characterized by intermittent aspirations to moral and scientific truth, and - placing the Rose's reception within the European history of vernacular hermeneutics - the problematic translation of literary authority from Latin into the vulgar tongue.