Lably
Skip to content

Extramarital sex

Sexual activity by a married person with someone other than their spouse

  • 7 min read
  • 4 chapters

Related on Lably

Through Marriage and Christianity

Where extramarital sex does not breach a sexual norm, it may be referred to as consensual non-monogamy (see also polyamory). Where extramarital sex does breach a sexual norm, it may be referred to as adultery or non-monogamy (sexual acts between a married person and a person other than the legal spouse), fornication, bigamy, philandering, or infidelity. These varying terms imply both immoral or religious consequences, charged whether via civil law or religious law.

Prevalence

American researcher Alfred Kinsey found in his 1950-era studies that 50% of American males and 26% of females had extramarital sex, representing an estimated hundred million Americans. Depending on studies, it was estimated that 26–50% of men and 21–38% of women, or 22.7% of men and 11.6% of women had extramarital sex. Other authors say that between 20% and 25% of Americans had sex with someone other than their spouse. Durex's Global Sex Survey (2005) found that 44% of adults worldwide reported having had one-night extramarital sex and 22% had an affair. A 1994 study found that only 2.5% of married Americans in urban areas with large Hispanic or African-American populations had sexual partners outside of marriage. According to a 2004 United States survey, 16% of married partners have had extramarital sex, nearly twice as many men as women, while an additional 30% have fantasized about extramarital sex. A 2016 study by the Institute for Family Studies in the US found that black Protestants had a higher rate of extramarital sex than Catholics. The 2022 General Social Survey found that of Americans engaging in extramarital sex, 50% identified as Protestant and 16% as Catholic.

In India, 0.2% females and 0.98% males did extramarital sex in a year as per the National Family Health Survey - 5, 2019-21.

A 2010 study of eight rural Sub-Saharan African populations reported that rates of risky extramarital sex varied from country to country, from 7% of men in Malawi to 33% of men in Chad.

According to a 2015 study by Durex and Match.com, Thailand and Denmark were the most adulterous countries based on the percentage of adults who admitted having an affair.

A 2018 US study found that 53.5% of Americans who admitted having extramarital sex did so with someone they knew well, such as a close friend. About 29.4% were with someone who was somewhat well-known, such as a neighbor, co-worker or long-term acquaintance, and the rest were with casual acquaintances. The study also found some gender differences, such as that men are more likely than women to hold more favorable attitudes about extramarital sex, and that among those who reported having extramarital sex in the past year, about 12% of men had paid for sex (or to have received payment for sex) compared to 1% for women.

Engagement in extramarital sex has been associated with individuals who have a higher libido (sex drive) than their partner.

Sign in to keep reading

3 more chapters are free with a Lably account.

More in <span id="Sexuality"></span>Sexuality and gender