The pre-exposure prophylaxis (PrEP) drug Truvada is a new HIV, prevention technology that is predominantly promoted as relevant, to HIV-negative gay men. This paper explores what PrEP represents, for HIV-positive gay men living in Paris, based upon data collected, through interviews and ethnographic research. While HIV-positive gay, men do not directly consume Truvada through PrEP, they nonetheless, hold opinions and understandings of this drug, specifically as it relates, to their own sexuality. This paper expands the representations and, meanings of this new technology in a different light through the, voices of gay men living with HIV in Paris. The main argument of this, article is that PrEP as an additional HIV prevention tool blurs the lines, between science, technologies and human sexuality.