Pavol Prokop, Ike E. Onyishi, Chiedozie O. Okafor & Michael N. Pham
Human Ethology Bulletin, Volume 32, No 3, 129-140, published September 30, 2017
There is debate regarding whether oral sex recurred over human evolution. We investigated the occurrence of oral sex (cunnilingus and fellatio) and other sexual activities among a rural Igbo community in south-east Nigeria. We found that giving and receiving oral sex was less common relative to other sexual activities in both men and women. Both sexes reported more frequent vaginal sexual intercourse (particularly ventro-ventral posture compared with dorso-ventral posture) in the past 10 days compared to oral sex. Taken together, our data suggests that vaginal sexual activities follow similar patterns that are documented in other parts of world and that oral sex occurred less frequently in this traditional society.
Keywords: Evolution, human, Igbo people, oral sex.