The dissertation Queer Theory and Stigma in the Construction of Homoaffection Performances in Life Stories Narratives investigates the construction of homoaffection performances through life stories narrated by four subjects, 20-30 years old and 40-50 years old, with university degree, belonging to middle and high middle class, living in the south zone of Rio de Janeiro. The narratives are analysed through the articulation of Queer Theory and Feminist Studies, Narrative Analysis, positioning and alignment concepts, and stigma. The perspective of this work is interdisciplinary, including concepts given by Social Psychology, Sociology, Anthropology, and History. The research aims at demonstrate that the subjects construe gay performances by displacing, and preserving the cultural matrix of inteligibility, which establishes a mimetic relation among sex-gender-sexual practice. Such displacements and preservations are revealed through positionings and alignments assumed in the act of telling life stories. I also tried to show how stigma affects the interviewer´s daily routine, particularly in terms of emotions, mainly those related to affection in the family. The study brings relevant contributions to gender studies, above all the ones which purpose is the investigation of subjects whose sexual practices are socially stigmatized.