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Promiscuity is the practice of engaging in sexual activity frequently with different partners or being indiscriminate in the choice of sexual partners. The term can carry a moral judgment. A common example of behavior viewed as promiscuous by many cultures is the
one-night stand A one-night stand is a single sexual encounter in which there is no expectation that there shall be any further relations between the sexual participants. It draws its name from the common practice of a one-night stand, a single night performanc ...
, and its frequency is used by researchers as a marker for promiscuity. What sexual behavior is considered promiscuous varies between cultures, as does the prevalence of promiscuity. Different standards are often applied to different genders and civil statutes.
Feminists Feminism is a range of socio-political movements and ideology, ideologies that aim to define and establish the political, economic, personal, and social gender equality, equality of the sexes. Feminism holds the position that modern soci ...
have traditionally argued a significant
double standard A double standard is the application of different sets of principles for situations that are, in principle, the same. It is often used to describe treatment whereby one group is given more latitude than another. A double standard arises when two ...
exists between how men and women are judged for promiscuity. Historically, stereotypes of the promiscuous woman have tended to be pejorative, such as "the slut" or "the harlot", while male stereotypes have been more varied, some expressing approval, such as "the stud" or "the player", while others imply societal deviance, such as "the womanizer" or "the philanderer". A scientific study published in 2005 found that promiscuous men and women are both prone to derogatory judgment. Promiscuity is common in many animal species. Some species have promiscuous
mating system A mating system is a way in which a group is structured in relation to sexual behaviour. The precise meaning depends upon the context. With respect to animals, the term describes which males and females mating, mate under which circumstances. Reco ...
s, ranging from
polyandry Polyandry (; ) is a form of polygamy in which a woman takes two or more husbands at the same time. Polyandry is contrasted with polygyny, involving one male and two or more females. If a marriage involves a plural number of "husbands and wives ...
and
polygyny Polygyny () is a form of polygamy entailing the marriage of a man to several women. The term polygyny is from Neoclassical Greek πολυγυνία (); . Incidence Polygyny is more widespread in Africa than in any other continent. Some scholar ...
to mating systems with no stable relationships where mating between two individuals is a one-time event. Many species form stable
pair bond In biology, a pair bond is the strong affinity that develops in some species between a mating pair, often leading to the production and rearing of young and potentially a lifelong bond. Pair-bonding is a term coined in the 1940s that is frequently ...
s, but still mate with other individuals outside the pair. In
biology Biology is the scientific study of life and living organisms. It is a broad natural science that encompasses a wide range of fields and unifying principles that explain the structure, function, growth, History of life, origin, evolution, and ...
, incidents of promiscuity in species that form pair bonds are usually called extra-pair copulations.


Motivations

Accurately assessing people's
sexual behavior Human sexual activity, human sexual practice or human sexual behaviour is the manner in which humans experience and express their sexuality. People engage in a variety of sexual acts, ranging from activities done alone (e.g., masturbation) t ...
is difficult, since strong social and personal motivations occur, depending on social sanctions and
taboo A taboo is a social group's ban, prohibition or avoidance of something (usually an utterance or behavior) based on the group's sense that it is excessively repulsive, offensive, sacred or allowed only for certain people.''Encyclopædia Britannica ...
s, for either minimizing or exaggerating reported sexual activity. American experiments in 1978 and 1982 found the great majority of men were willing to have sex with women they did not know, of average attractiveness, who propositioned them. No woman, by contrast, agreed to such propositions from men of average attractiveness. While men were in general comfortable with the requests, regardless of their willingness, women responded with shock and disgust. The number of sexual partners people have had in their lifetimes varies widely within a population. We see a higher number of people who are more comfortable with their sexuality in the modern world. A 2007 nationwide survey in the United States found the median number of female sexual partners reported by men was seven and the median number of male partners reported by women was four. The men possibly exaggerated their reported number of partners, women reported a number lower than the actual number, or a minority of women had a sufficiently larger number than most other women to create a mean significantly higher than the median, or all of the above. About 29% of men and 9% of women reported to have had more than 15 sexual partners in their lifetimes. Studies of the spread of
sexually transmitted infection A sexually transmitted infection (STI), also referred to as a sexually transmitted disease (STD) and the older term venereal disease (VD), is an infection that is Transmission (medicine), spread by Human sexual activity, sexual activity, e ...
s consistently demonstrate a small percentage of the studied population has more partners than the average man or woman, and a smaller number of people have fewer than the statistical average. An important question in the
epidemiology Epidemiology is the study and analysis of the distribution (who, when, and where), patterns and Risk factor (epidemiology), determinants of health and disease conditions in a defined population, and application of this knowledge to prevent dise ...
of sexually transmitted infections is whether or not these groups copulate mostly at random with sexual partners from throughout a population or within their social groups. A 2006
systematic review A systematic review is a scholarly synthesis of the evidence on a clearly presented topic using critical methods to identify, define and assess research on the topic. A systematic review extracts and interprets data from published studies on ...
analyzing data from 59 countries worldwide found no association between regional sexual behavior tendencies, such as number of sexual partners, and sexual-health status. Much more predictive of sexual-health status are socioeconomic factors like poverty and mobility. Other studies have suggested that people with multiple casual sex partners are more likely to be diagnosed with sexually transmitted infections. Severe and impulsive promiscuity, along with a compulsive urge to engage in illicit sex with attached individuals is a common symptom of
borderline personality disorder Borderline personality disorder (BPD) is a personality disorder characterized by a pervasive, long-term pattern of significant interpersonal relationship instability, an acute fear of Abandonment (emotional), abandonment, and intense emotiona ...
,
histrionic personality disorder Histrionic personality disorder (HPD) is a personality disorder characterized by a pattern of excessive attention-seeking behaviors, usually beginning in adolescence or early adulthood, including inappropriate seduction and an excessive desire ...
,
narcissistic personality disorder Narcissistic personality disorder (NPD) is a personality disorder characterized by a life-long pattern of grandiosity, exaggerated feelings of self-importance, an excessive need for admiration, and a diminished ability to empathy, empathize w ...
, and
antisocial personality disorder Antisocial personality disorder (ASPD) is a personality disorder defined by a chronic pattern of behavior that disregards the rights and well-being of others. People with ASPD often exhibit behavior that conflicts with social norms, leading to ...
but most promiscuous individuals do not have these disorders.


Cross-cultural studies

In 2008, a U.S. university study of international promiscuity found that
Finns Finns or Finnish people (, ) are a Baltic Finns, Baltic Finnic ethnic group native to Finland. Finns are traditionally divided into smaller regional groups that span several countries adjacent to Finland, both those who are native to these cou ...
have had the largest number of sex partners in the industrialized world, and
British people British people or Britons, also known colloquially as Brits, are the citizens of the United Kingdom, the British Overseas Territories, and the Crown dependencies.: British nationality law governs modern British citizenship and nationality, w ...
have the largest number among big western industrial nations. The study measured one-night stands, attitudes to
casual sex Casual sex is sexual activity that takes place outside a romantic relationship and implies an absence of commitment, emotional attachment, or familiarity between sexual partners. Examples are sexual activity while casually dating, one-nig ...
, and number of
sexual partner Sexual partners are people who engage in sexual activity together. The sexual partners may be in a committed relationship, either on an exclusive basis or not, or engage in the sexual activity on a casual basis. They may be on intimate terms ( ...
s. A 2014 nationwide survey in the United Kingdom named Liverpool the country's most promiscuous city. Britain's position on the international index "may be linked to increasing social acceptance of promiscuity among women as well as men". Britain's ranking was "ascribed to factors such as the decline of religious scruples about extramarital sex, the growth of equal pay and equal rights for women, and a highly sexualized popular culture". The top-10-ranking
OECD The Organisation for Economic Co-operation and Development (OECD; , OCDE) is an international organization, intergovernmental organization with 38 member countries, founded in 1961 to stimulate economic progress and international trade, wor ...
nations with a population over 10 million on the study's promiscuity index, in descending order, were the United Kingdom, Germany, the Netherlands, Czechia, Australia, the United States, France, Turkey, Mexico, and Canada. A 2017 survey by Superdrug found that the United Kingdom was the country with the most sex partners with an average of 7, while Austria had around 6.5. The 2012 Trojan Sex Life Survey found that African American men reported an average of 38 sex partners in their lifetime. A study funded by
condom A condom is a sheath-shaped Barrier contraception, barrier device used during sexual intercourse to reduce the probability of pregnancy or a Sexually transmitted disease, sexually transmitted infection (STI). There are both external condo ...
-maker
Durex Durex is a British brand of condoms and personal lubricants owned by Reckitt, Reckitt Benckiser. It was initially developed in London under the purview of the London Rubber Company and British Latex Products Ltd, where it was manufactured betwee ...
, conducted in 2006 and published in 2009, measured promiscuity by a total number of sexual partners. The survey found Austrian men had the highest number of sex partners globally, with 29.3 sexual partners on average. New Zealand women had the highest number of sex partners for females in the world with an average of 20.4 sexual partners. In all of the countries surveyed, except New Zealand, men reported more sexual partners than women. One review found the people from developed Western countries had more sex partners than people from developing countries in general, while the rate of STIs was higher in developing countries. According to the 2005 Global Sex Survey by Durex, people have had on average nine sexual partners, the most in Turkey (14.5) and Australia (13.3), and the fewest in India (3) and China (3.1). In many cases, the population of each country that participates is approximately 1000 people and can equate to less than 0.0003% of the population, e.g. the 2017 survey of 42 nations surveyed only 33,000 people. In India, data was collected from less than 0.000001% of the total population at that time. According to the 2012 General Social Survey in the United States by the National Opinion Research Center at the University of Chicago, Protestants on average had more sex partners than Catholics. Similarly, a 2019 study by the Institute for Family Studies in the US found that of never married young people, Protestants have more sexual partners than Catholics.


Male promiscuity


Straight men (heterosexuals)

A 1994 study in the United States, which looked at the number of sexual partners in a lifetime, found 20% of heterosexual men had one partner, 55% had two to 20 partners, and 25% had more than 20 sexual partners. More recent studies have reported similar numbers. In the United Kingdom, a nationally representative study in 2013 found that 33.9% of heterosexual men had 10 or more lifetime sexual partners. Among men between 45 and 54 years old, 43.1% reported 10 or more sexual partners. A 2003 representative study in Australia found that heterosexual men had a median of 8 female sexual partners in their lifetime. For lifetime sexual partners: 5.8% had 0 partners, 10.3% had 1 partner, 6.1% had 2 partners, 33% had between 3 and 9 partners, 38.3% had between 10 and 49 partners and 6.6% had more than 50 female sexual partners. A 2014 representative study in Australia found that heterosexual men had a median of 7.8 female sexual partners in their lifetime. For lifetime sexual partners: 3.7% had 0 partners, 12.6% had 1 partner, 6.8% had 2 partners, 32.3% had between 3 and 9 partners, 36.9% had between 10 and 49 partners and 7.8% had more than 50 female sexual partners. Research by J. Michael Bailey found that heterosexual men had the same level of interest in casual sex as gay men. However he found straight men were limited in their ability to acquire high numbers of female partners. According to Bailey, "These facts suggest that women are responsible for the pace of sex. Gay and straight men both want casual sex, but only straight men have the brake of women’s sexually cautious nature to slow them."


Gay men (homosexuals)

A 1989 study found having over 100 partners to be present though rare among homosexual males. An extensive 1994 study found that difference in the mean number of sexual partners between gay and straight men "did not appear very large". A 2007 study reported that two large population surveys found "the majority of
gay men Gay men are male homosexuals. Some bisexual men, bisexual and homoromantic men may dually identify as ''gay'' and a number of gay men also identify as ''queer''. Historic terminology for gay men has included ''Sexual inversion (sexology), in ...
had similar numbers of unprotected sexual partners annually as straight men and women." The 2013 British NATSAL study found that gay men typically had 19 sexual partners in a lifetime (median). In the previous year, 51.8% reported having either 0 or 1 sexual partner. A further 21.3% reported having between 2 and 4 sexual partners, 7.3% reported having between 5 and 9, and 19.6% reported having 10 or more sexual partners. A 2014 study in Australia found gay men had a median of 22 sexual partners in a lifetime (''sexual partner'' was defined as kissing, touching or intercourse). 50.1% of gay men reported having either 0 or 1 partner in the previous year, while 25.6% reported 10 or more partners in the previous year. Research on gay sexual behavior may overrepresent promiscuous respondents. This is because gay men are a small portion of the male population, and thus many researchers have relied on convenience surveys to research behavior of gay men. Examples of this type of sampling includes surveying men on dating apps such as
Grindr Grindr () is a location-based social networking and online dating application for gay, bisexual, queer, and transgender people. It was one of the first geosocial apps for gay men when it launched in March 2009, and has since become the large ...
, or finding volunteers at gay bars, clubs and saunas. Convenience surveys often exclude gay men who are in a relationship, and gay men who do not use dating apps or attend gay venues. For example, the British and European convenience surveys included approximately five times as many gay men who reported "5 or more sexual partners" than the nationally representative NATSAL study did. Probability sample surveys are more useful in this regard, because they seek to accurately reflect the characteristics of the gay male population. Examples include the NATSAL in the United Kingdom and the
General Social Survey The General Social Survey (GSS) is a sociological survey created in 1972 by James A. Davis of the National Opinion Research Center (NORC) at the University of Chicago and funded by the National Science Foundation. The GSS collects information ...
in the United States. According to John Corvino, opponents of gay rights often use convenience sample statistics to support their belief that gay men are promiscuous, but that larger representative samples show that the difference is not so large, and that extreme promiscuity occurs in a minority of gay men. Psychologist J. Michael Bailey has stated that social conservatives use promiscuity among gay men as evidence of a "decadent" nature of gay men, but says "I think they're wrong. Promiscuous gay men are expressing an essentially masculine trait. They are doing what most heterosexual men would do if they could. They are in this way just like heterosexual men, except that they don't have women to constrain them." Regarding
sexually transmitted infection A sexually transmitted infection (STI), also referred to as a sexually transmitted disease (STD) and the older term venereal disease (VD), is an infection that is Transmission (medicine), spread by Human sexual activity, sexual activity, e ...
s (STIs), some researchers have said that the number of sexual partners had by gay men cannot fully explain rates of HIV infection in this population. Most gay men report having similar numbers of unprotected sexual partners as straight men on an annual basis. Unprotected receptive anal sex, which holds a much higher risk of HIV transmission, appears to be the major factor.


Female promiscuity

In 1994, a study in the United States found almost all married heterosexual women reported having sexual contact only with their husbands, and unmarried women almost always reported having no more than one sexual partner in the past three months. Lesbians who had long-term partners reported having fewer outside partners than heterosexual women. More recent research, however, contradicts the assertion that heterosexual women are largely monogamous. A 2002 study estimated that 45% to 55% of married heterosexual women engage in sexual relationships outside of their marriage, while the estimate for heterosexual men engaging in the same conduct was 50–60% in the same study. One possible explanation for hypersexuality is child sexual abuse (CSA) trauma. Many studies have examined the correlation between CSA and
risky sexual behavior Risky sexual behavior is the description of the activity that will increase the probability that a person engaging in sexual activity with another person infected with a sexually transmitted infection will be Pathogen transmission, infected, beco ...
. Rodriguez-Srednicki and Ofelia examined the correlation of CSA experienced by women and their self-destructive behavior as adults using a questionnaire. The diversity and ages of the women varied. Slightly fewer than half the women reported CSA while the remainder reported no childhood trauma. The results of the study determined that self-destructive behaviors, including hypersexuality, correlates with CSA in women. CSA can create sexual schemas that result in risky sexual behavior. This can play out in their sexual interactions as girls get older. The sexual behaviors of women that experienced CSA differed from those of women without exposure to CSA. Studies show CSA survivors tend to have more sexual partners and engage in higher risk sexual behaviors. Since at least 1450, the word ' slut' has been used, often pejoratively, to describe a sexually promiscuous woman. In and before the
Elizabethan The Elizabethan era is the epoch in the Tudor period of the history of England during the reign of Queen Elizabeth I (1558–1603). Historians often depict it as the golden age in English history. The Roman symbol of Britannia (a female per ...
and
Jacobean era The Jacobean era was the period in English and Scotland, Scottish history that coincides with the reign of James VI and I, James VI of Scotland who also inherited the crown of England in 1603 as James I. The Jacobean era succeeds the Elizabeth ...
s, terms like "strumpet" and "whore" were used to describe women deemed promiscuous, as seen, for example, in John Webster's 1612 play '' The White Devil''. Thornhill and Gangestad found that women are much more likely to sexually fantasize about and be attracted to extra-pair men during the fertile phase of the
menstrual cycle The menstrual cycle is a series of natural changes in hormone production and the structures of the uterus and ovaries of the female reproductive system that makes pregnancy possible. The ovarian cycle controls the production and release of eg ...
than the
luteal phase The menstrual cycle is on average 28 days in length. It begins with Menstruation, menses (day 1–7) during the follicular phase (day 1–14), followed by ovulation (day 14) and ending with the luteal phase (day 14–28). While historically, medi ...
, whereas attraction to the primary partner does not change depending on the
menstrual cycle The menstrual cycle is a series of natural changes in hormone production and the structures of the uterus and ovaries of the female reproductive system that makes pregnancy possible. The ovarian cycle controls the production and release of eg ...
. A 2004 study by Pillsworth, Hasselton and Buss contradicted this, finding greater in-pair sexual attraction during this phase and no increase in attraction to extra-pair men. In Norwegian students, Kennair et al. (2023) found no signs of a sexual double standard in short-term or long-term mating contexts, nor in choosing a friend, except that women's self-stimulation was more acceptable than men's.


Evolution

Evolutionary psychologists Evolution is the change in the heritable Phenotypic trait, characteristics of biological populations over successive generations. It occurs when evolutionary processes such as natural selection and genetic drift act on genetic variation, re ...
propose that a conditional
human Humans (''Homo sapiens'') or modern humans are the most common and widespread species of primate, and the last surviving species of the genus ''Homo''. They are Hominidae, great apes characterized by their Prehistory of nakedness and clothing ...
tendency for promiscuity is inherited from
hunter-gatherer A hunter-gatherer or forager is a human living in a community, or according to an ancestrally derived Lifestyle, lifestyle, in which most or all food is obtained by foraging, that is, by gathering food from local naturally occurring sources, esp ...
ancestors. Promiscuity increases the likelihood of having children, thus "evolutionary" fitness. According to them, female promiscuity is advantageous in that it allows females to choose fathers for their children who have better genes than their mates, to ensure better care for their offspring, have more children, and as a form of fertility insurance. Male promiscuity was likely advantageous because it allowed males to father more children.


Primitive promiscuity

Primitive promiscuity or original promiscuity was the 19th-century hypothesis that humans originally lived in a state of promiscuity or " hetaerism" before the advent of society as we understand it. Hetaerism is a theoretical early state of human society, as postulated by 19th-century anthropologists, which was characterized by the absence of the institution of marriage in any form and in which women were the common property of their tribe and in which children never knew who their fathers were. The reconstruction of the original state of primitive society or humanity was based on the idea of progress, according to which all cultures have degrees of improvement and becoming more complicated. It seemed logical to assume that never before the types of families developed did they simply exist, and in primitive society, sexual relations were without any boundaries and taboos. This view is represented, inter alia, by anthropologist Lewis H. Morgan in ''
Ancient Society ''Ancient Society'' is an 1877 book by the American anthropologist Lewis H. Morgan. Building on the data about kinship and social organization presented in his 1871 '' Systems of Consanguinity and Affinity of the Human Family'', Morgan develops ...
'' and
Friedrich Engels Friedrich Engels ( ;"Engels"
''Random House Webster's Unabridged Dictionary''.
The Origin of the Family, Private Property and the State ''The Origin of the Family, Private Property and the State: in the Light of the Researches of Lewis H. Morgan'' () is an 1884 anthropological treatise by Friedrich Engels. It is partially based on notes by Karl Marx to Lewis H. Morgan's book ''Anc ...
''. In the first half of the 20th century, this notion was rejected by a number of authors, e.g.
Edvard Westermarck Edvard Alexander Westermarck (20 November 1862 in Helsinki – 3 September 1939 in Tenala) was a Finnish philosopher and sociologist. Among other subjects, he studied exogamy and the incest taboo. Biography Westermarck was born in 1862 in a w ...
, a Finnish philosopher, social anthropologist and sociologist with in-depth knowledge of the history of marriage, who provided strong evidence that, at least in the first stages of cultural development, monogamy has been a perfectly normal and natural form of man-woman coexistence. Modern cultural anthropology has not confirmed the existence of a complete promiscuity in any known society or culture. The evidence of history is reduced to some texts of
Herodotus Herodotus (; BC) was a Greek historian and geographer from the Greek city of Halicarnassus (now Bodrum, Turkey), under Persian control in the 5th century BC, and a later citizen of Thurii in modern Calabria, Italy. He wrote the '' Histori ...
,
Strabo Strabo''Strabo'' (meaning "squinty", as in strabismus) was a term employed by the Romans for anyone whose eyes were distorted or deformed. The father of Pompey was called "Gnaeus Pompeius Strabo, Pompeius Strabo". A native of Sicily so clear-si ...
, and
Solinus __NOTOC__ Gaius Julius Solinus, better known simply as Solinus, was a Latin grammarian, geographer, and compiler who probably flourished in the early 3rd century AD. Historical scholar Theodor Mommsen dates him to the middle of the 3rd century. ...
, which have been hard to interpret.


Religious, social, and cultural views

Christianity Christianity is an Abrahamic monotheistic religion, which states that Jesus in Christianity, Jesus is the Son of God (Christianity), Son of God and Resurrection of Jesus, rose from the dead after his Crucifixion of Jesus, crucifixion, whose ...
,
Judaism Judaism () is an Abrahamic religions, Abrahamic, Monotheism, monotheistic, ethnic religion that comprises the collective spiritual, cultural, and legal traditions of the Jews, Jewish people. Religious Jews regard Judaism as their means of o ...
, and
Islam Islam is an Abrahamic religions, Abrahamic monotheistic religion based on the Quran, and the teachings of Muhammad. Adherents of Islam are called Muslims, who are estimated to number Islam by country, 2 billion worldwide and are the world ...
condemn promiscuity and instead advocate lifelong monogamous marriage (although Islam allows polygamy for men). The perspectives on promiscuity vary significantly depending on the region. Every country has different values and morals pertaining to sexual life. Promiscuity has been practiced in
hippie A hippie, also spelled hippy, especially in British English, is someone associated with the counterculture of the 1960s, counterculture of the mid-1960s to early 1970s, originally a youth movement that began in the United States and spread to dif ...
communities and other alternative subcultures since the 1960s cultural revolution. Sex and Culture is a book by J. D. Unwin concerning the correlation between a society's level of 'cultural achievement' and its level of sexual restraint. Published in 1934, the book concluded with the theory that as societies develop, they become more sexually liberal, accelerating the social entropy of the society, and thereby diminishing its "creative" and "expansive" energy.


Other animals

Some researchers have suggested that the practice of referring to animals as promiscuous in reference to their mating system is often inaccurate and potentially biased. More precise terms such as
polyandry Polyandry (; ) is a form of polygamy in which a woman takes two or more husbands at the same time. Polyandry is contrasted with polygyny, involving one male and two or more females. If a marriage involves a plural number of "husbands and wives ...
,
polygyny Polygyny () is a form of polygamy entailing the marriage of a man to several women. The term polygyny is from Neoclassical Greek πολυγυνία (); . Incidence Polygyny is more widespread in Africa than in any other continent. Some scholar ...
, and
polygynandry Polygynandry is a mating system in which both males and females have multiple mating partners during a breeding season. In sexually reproducing diploid animals, different mating strategies are employed by males and females, because the cost of gam ...
are increasingly preferred. Many animal species, such as
spotted hyena The spotted hyena (''Crocuta crocuta''), also known as the laughing hyena, is a hyena species, currently classed as the sole extant member of the genus ''Crocuta'', native to sub-Saharan Africa. It is listed as being of least concern by the IUC ...
s,
pigs The pig (''Sus domesticus''), also called swine (: swine) or hog, is an omnivorous, domesticated, even-toed, hoofed mammal. It is named the domestic pig when distinguishing it from other members of the genus '' Sus''. Some authorities cons ...
,
bonobo The bonobo (; ''Pan paniscus''), also historically called the pygmy chimpanzee (less often the dwarf chimpanzee or gracile chimpanzee), is an endangered great ape and one of the two species making up the genus ''Pan (genus), Pan'' (the other bei ...
s and
chimpanzee The chimpanzee (; ''Pan troglodytes''), also simply known as the chimp, is a species of Hominidae, great ape native to the forests and savannahs of tropical Africa. It has four confirmed subspecies and a fifth proposed one. When its close rel ...
s, are promiscuous as a rule, and do not form
pair bond In biology, a pair bond is the strong affinity that develops in some species between a mating pair, often leading to the production and rearing of young and potentially a lifelong bond. Pair-bonding is a term coined in the 1940s that is frequently ...
s. Although social monogamy occurs in about 90% of avian species and about 3% of
mammal A mammal () is a vertebrate animal of the Class (biology), class Mammalia (). Mammals are characterised by the presence of milk-producing mammary glands for feeding their young, a broad neocortex region of the brain, fur or hair, and three ...
ian species, an estimated 90% of socially monogamous species exhibit individual promiscuity in the form of copulation outside the pair bond.Research conducted by Patricia Adair Gowaty. Reported by In the animal world, some species, including birds such as
swan Swans are birds of the genus ''Cygnus'' within the family Anatidae. The swans' closest relatives include the goose, geese and ducks. Swans are grouped with the closely related geese in the subfamily Anserinae where they form the tribe (biology) ...
s and fish such as ''
Neolamprologus pulcher ''Neolamprologus pulcher'' is a species of cichlid endemic to Lake Tanganyika where it prefers locations with plenty of sedimentation. The common names for ''N. pulcher'' include daffodil cichlid, fairy cichlid, princess of Zambia and lyretail c ...
'', once believed
monogamous Monogamy ( ) is a relationship of two individuals in which they form a mutual and exclusive intimate partnership. Having only one partner at any one time, whether for life or serial monogamy, contrasts with various forms of non-monogamy (e.g. ...
, are now known to engage in
extra-pair copulation Extra-pair copulation (EPC) is a mating behaviour in monogamous species. Monogamy is the practice of having only one sexual partner at any one time, forming a long-term bond and combining efforts to raise offspring together; mating outside this p ...
s. One example of extra-pair fertilization (EPF) in birds is the black-throated blue warblers. Though it is a socially monogamous species, both males and females engage in EPF. The Darwin-Bateman paradigm, which states that males are typically eager to copulate while females are more choosy about whom to mate with, has been confirmed by a
meta-analysis Meta-analysis is a method of synthesis of quantitative data from multiple independent studies addressing a common research question. An important part of this method involves computing a combined effect size across all of the studies. As such, th ...
. There is, however, continued debate about the utility and pitfalls of the Bateman perspective.


Risks

Promiscuity may increase the risk of acquiring
sexually transmitted infections A sexually transmitted infection (STI), also referred to as a sexually transmitted disease (STD) and the older term venereal disease (VD), is an infection that is spread by sexual activity, especially vaginal intercourse, anal sex, or ...
.


See also

*
Cottaging Cottaging is a LGBT slang, gay slang term, originating from the United Kingdom, referring to anonymous sex between men in a public lavatory (a "cottage" or "tea-room"Andre "tearoom; t-room ''noun'' a Washroom, public toilet. From an era when a grea ...
* Emotional promiscuity * Effects of human sexual promiscuity * Female promiscuity *
Monogamy Monogamy ( ) is a social relation, relationship of Dyad (sociology), two individuals in which they form a mutual and exclusive intimate Significant other, partnership. Having only one partner at any one time, whether for life or #Serial monogamy ...
*
Polyamory Polyamory () is the practice of, or the desire for, romantic relationships with more than one partner at the same time, with the informed consent of all partners involved. Some people who identify as polyamorous believe in consensual non-mon ...
*
Polyandry Polyandry (; ) is a form of polygamy in which a woman takes two or more husbands at the same time. Polyandry is contrasted with polygyny, involving one male and two or more females. If a marriage involves a plural number of "husbands and wives ...
*
Polygamy Polygamy (from Late Greek , "state of marriage to many spouses") is the practice of marriage, marrying multiple spouses. When a man is married to more than one wife at the same time, it is called polygyny. When a woman is married to more tha ...
*
Polygynandry Polygynandry is a mating system in which both males and females have multiple mating partners during a breeding season. In sexually reproducing diploid animals, different mating strategies are employed by males and females, because the cost of gam ...
*
Prostitution Prostitution is a type of sex work that involves engaging in sexual activity in exchange for payment. The definition of "sexual activity" varies, and is often defined as an activity requiring physical contact (e.g., sexual intercourse, no ...
*
Sexual addiction Sexual addiction is a state characterized by compulsive participation or engagement in sexual activity, particularly sexual intercourse, despite negative consequences. The concept is contentious; sexual addiction is not a clinical diagnosis in ...
*
Sexual revolution The sexual revolution, also known as the sexual liberation, was a social movement that challenged traditional codes of behavior related to sexuality and interpersonal relationships throughout the Western world from the late 1950s to the early 1 ...
* Sociosexual orientation *
Sperm competition Sperm competition is the competitive process between Spermatozoon, spermatozoa of two or more different males to fertility, fertilize the same Egg cell, egg during sexual reproduction. Competition can occur when females have multiple potential m ...
* Swinging


References


Bibliography

*Chakov, Kell
''Nineteen Century Social Evolutionism''
* Fortes, Meyer (2005)
Kinship and the Social Order: The Legacy of Lewis Henry Morgan
' pp. 7–8 *Lehrman, Sally
The Virtues of Promiscuity
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