The historical evolution and contemporary manifestation of sexual theology within the Roman Catholic tradition is deficient of explicit consideration of the developmental aspects of human sexuality. In this thesis I address that deficiency by exploring contemporary sexual theology from within a feminist natural law perspective and constructing a sexual theology accounting for adolescent females. In so doing, I also conduct a meta-analysis of relevant existing empirical data pertaining to adolescent female sexuality (primarily psychological in nature) as a means of better understanding their sexual development, experiences, and interpretations. Finally, I undertake a synthesis of the discrete discourses of theology and developmental psychology in the construction of an adequate theological sexual ethic. The locus of this synthesis is the concept of human flourishing, sexual flourishing in particular, of persons in relationship with others and with the Divine. In the light of the above work, I conclude with a discussion of implications for Catholic sexuality education and curricula and some questions for further study.