Even though oral sex plays no role in reproduction, a new study suggests that men often perform the act on their female partners in order to minimize the risk of infidelity.
The study was conducted to find out why men performed oral sex on females, as the act did not lead to reproduction.
243 adult men in heterosexual relationships were surveyed and the researchers found that cunnilingus is used by men to discourage their female partners from cheating by increasing her relationship satisfaction, a theory which the authors referred to as a mate-retention strategy, the Huffington Post reported.
The study has been published in the Journal of Evolutionary Psychology.
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