This study has two phases. It will be conducted in one site in CT only. Phase I is to enumerate interest in PrEP uptake among young South African women exposed to a culturally-appropriate social marketing campaign. This enumeration will also serve as a recruitment strategy for a cohort with open-label PrEP access in Phase II. The cohort will assess PrEP acceptability and adherence among 200 HIV-uninfected young women who are offered open-label daily oral PrEP and randomized to receive or not receive a short term cash incentive conditional on study drug adherence.