behavior paraphilic behavior incestuous behavior 306.877 http://id.loc.gov/authorities/subjects/sh85064740 http://purl.bioontology.org/ontology/MESH/D007179 https://en.wikipedia.org/wiki/Category:Incest https://en.wikipedia.org/wiki/Incest https://homosaurus.org/terms/incest https://www.wikidata.org/wiki/Q127683 RC560.I53 HV6570.6-HV6570.9 GN480.25 Human sexual behavior between family members or close relatives. This typically includes sexual activity between people in consanguinity (blood relations), and sometimes those related by affinity (marriage or stepfamily), adoption, clan, or lineage. incest incestuous behaviors Encyclopedia of Homosexuality