Encyclopedia of Evolutionary Psychological Science

Living Edition
| Editors: Todd K. Shackelford, Viviana A. Weekes-Shackelford

Same-Sex Sexual Behavior

  • Brian FeinsteinEmail author
  • Trey Dellucci
Living reference work entry
DOI: https://doi.org/10.1007/978-3-319-16999-6_3367-1



Sexual behavior between individuals of the same sex.


An estimated 3.5 % of adults in the United States (US) identify as lesbian, gay, or bisexual (LGB), which amounts to more than 8 million people (Gates 2011). An even larger percentage reports that they have engaged in same-sex sexual behavior (8.2 %) or acknowledges at least some same-sex attraction (11 %) (Gates 2011). Further, studies have demonstrated that sexual attractions, behaviors, and identities can change over time and across situations, especially for women (e.g., Diamond 2008). This indicates that same-sex sexual behavior transcends self-identification as LGB, and it underscores the widespread relevance of same-sex sexual behavior. This entry describes sexual behavior between individuals of the same sex, including the specific sexual behaviors that they engage in, the prevalence rates of these behaviors, and their relative risks for HIV. Given the...


Anal Intercourse Heterosexual Woman Bisexual Woman Manual Stimulation Genital Contact 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer International Publishing AG 2016

Authors and Affiliations

  1. 1.Northwestern UniversityChicagoUSA