This article presents episodes of gay sex in the daily lives of people from a Brazilian shantytown (favela). It does so through a writing genre I call ‘ethnographic striptease’, which offers a picture of sexuality that is less ‘clinical’ and more similar to the form of an ‘erotic art’. This is based on the Foucauldian proposed distinction between two forms of knowledge discussed in History of Sexuality, Volume I: ‘scientia sexualis’ and ‘ars erotica’. I ask what an understanding of sexuality based more on the latter would look like. The result is presented in six concrete examples of this ethnographic form, which are provided in the article. These are followed by some personal commentaries, rather than by a ‘scientific analysis’ of them. By disrupting the boundaries of established narrative genres, the article offers a contribution towards the expansion of the ways in which human sexuality can be addressed and communicated. In a game of hiding and revealing, an ethnographic striptease offers a different look at queer sex life emerging from a large favela in Rio de Janeiro.