METHODS: The research "Whom have you had an affective and/or sexual relationship with in the last 12 months?" was answered spontaneously through the website www.terapiadosexo.med.br.

RESULTS:

The average age was 27 years and 3 months, and the average age for perceived attraction for the same sex was 16 years and 2 months.

For 57.27% of women, sexual initiation with the same sex happened, on average, at 18 years and 8 months of age.

33.63% had sexual behavior exclusively with the same sex, the most frequent being: 11.81%, recurrent sexual fantasies; 9.09%, only affective involvement; 7.27%, only sexual involvement, and 3.63% reported affective and sexual involvement, and recurrent sexual fantasies.

32.72% became involved with both sexes, the most frequent being: 5.45%, affective and sexual involvement with the opposite sex and recurrent sexual fantasies with the same sex; 5.45%, affective and sexual involvement with the opposite sex and recurrent sexual fantasies with both sexes; 4.54% affective involvement with the opposite sex and recurrent sexual fantasies with both sexes.

32.72% had involvement only with the opposite sex, the most frequent being: 11.81%, only affective involvement; 7.27%, only sexual involvement; 4.54%, sexual involvement and recurrent sexual fantasies; 3.63%, affective and sexual involvement with the opposite sex.

CONCLUSIONS: In the last 12 months, 57. 27% having already had sexual initiation with the same sex, only 33.63% kept an exclusive same-sex behavior, since 32.72% had relationships with both sexes and 32.72%, only with the opposite sex.