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Encyclopedia > Sexual intercourse
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Vaginal sexual intercourse, also called coitus, is the human form of copulation. While its primary purpose is the reproduction and continued survival of the human species, it is often performed exclusively for pleasure and/or as an expression of love and emotional intimacy. Sexual intercourse typically plays a powerful bonding role. Image File history File links Please see the file description page for further information. ... This article is in need of attention from an expert on the subject. ... Sevenspotted Lady Beetles mating In biology, mating is the pairing of opposite-sex or hermaphroditic internal fertilization animals for copulation and, in social animals, also to raise their offspring. ... Look up sex in Wiktionary, the free dictionary. ... Making Love is a 1982 film about a married man coming to terms with his homosexuality and the love triangle that develops around him, his wife and another man. ... Image File history File links Portal. ... A pair of lions copulating in the Maasai Mara, Kenya. ... The term human bond, or more generally human bonding, refers to the process or formation of a close personal relationship, as between a parent and child, especially through frequent or constant association. ...


Sexual intercourse is also defined as referring to any form of insertive sexual behavior, including oral sex, as well as anal intercourse. The phrase to have sex can mean any or all of these behaviors. Oral sex consists of all sexual activities that involve the use of the mouth, tongue, teeth, and possibly the throat, to stimulate genitalia. ... Anal sex or anal intercourse is human sexual behavior involving the anus and rectum, especially, but not limited to, the insertion of the erect penis into the anus. ...


Coitus may be preceded by foreplay, which leads to sexual arousal of the partners, resulting in the erection of the penis and natural lubrication of the vagina. This article or section does not cite its references or sources. ... This article or section does not cite its references or sources. ... The erection of the penis, clitoris or a nipple is its enlarged and firm state. ... The penis (plural penises, penes) is an external male sexual organ. ... Lubrication occurs when opposing surfaces are completely separated by a lubricant film. ... The vagina, (from Latin, literally sheath or scabbard ) is the tubular tract leading from the uterus to the exterior of the body in female placental mammals and marsupials, or to the cloaca in female birds, monotremes, and some reptiles. ...

Coition of a Hemisected Man and Woman (c. 1492, by Leonardo da Vinci) is an artist's interpretation of what happens inside the body during coitus.
Coition of a Hemisected Man and Woman (c. 1492, by Leonardo da Vinci) is an artist's interpretation of what happens inside the body during coitus.

To engage in coitus, the erect penis is inserted into the vagina and one or both of the partners move their hips to move the penis backward and forward inside the vagina to cause friction, typically without fully removing the penis. In this way, they stimulate themselves and each other, often continuing until highly pleasurable orgasm and ejaculation are achieved. Penetration by the hardened erect penis is also known as intromission, or by the Latin name immissio penis. Image File history File links Download high resolution version (535x882, 185 KB) Coition of a Hemisected Man and Woman (c. ... Image File history File links Download high resolution version (535x882, 185 KB) Coition of a Hemisected Man and Woman (c. ... Not to be confused with 1492: Conquest of Paradise. ... The Mona Lisa Leonardo di ser Piero da Vinci (April 15, 1452 – May 2, 1519) was an Italian polymath: scientist, mathematician, engineer, inventor, anatomist, painter, sculptor, architect, musician, and writer. ... Friction is the force that opposes the relative motion or tendency toward such motion of two surfaces in contact. ... Orgasm is the conclusion of the plateau phase of the sexual response cycle, and is experienced by both males and females. ... Ejaculation is the ejecting of semen from the penis, and is usually accompanied by orgasm. ...

Contents

Sexual reproduction

Coitus is the basic reproductive method of humans. During ejaculation, which usually accompanies male orgasm, a series of muscular contractions delivers semen containing male gametes known as sperm cells or spermatozoa from the penis into the vagina. (While this is the norm, if one is wearing a condom, the sperm will almost never reach the egg.) The subsequent route of the sperm from the vault of the vagina is through the cervix and into the uterus, and then into the fallopian tubes. Millions of sperm are present in each ejaculation, to increase the chances of one fertilizing an egg or ovum. If female orgasm occurs during or after male ejaculation, the corresponding temporary reduction in the size of the vagina and the contractions of the uterus that occur can help the sperm to reach the fallopian tubes, though female orgasm is not necessary to achieve pregnancy. When a fertile ovum from the female is present in the fallopian tubes, the male gamete joins with the ovum resulting in fertilization and the formation of a new embryo. When a fertilized ovum reaches the uterus, it becomes implanted in the lining of the uterus, known as endometrium and a pregnancy begins. A top-down view of skeletal muscle A muscle contraction (also known as a muscle twitch or simply twitch) occurs when a muscle cell (called a muscle fiber) lengthens or shortens. ... Horse semen being collected for breeding purposes. ... A gamete is a specialized germ cell that fuses with another gamete during fertilization (conception) in organisms that reproduce sexually. ... A spermatozoon or spermatozoan ( spermatozoa), from the ancient Greek σπέρμα (seed) and (living being) and more commonly known as a sperm cell, is the haploid cell that is the male gamete. ... The vagina, (from Latin, literally sheath or scabbard ) is the tubular tract leading from the uterus to the exterior of the body in female placental mammals and marsupials, or to the cloaca in female birds, monotremes, and some reptiles. ... Schematic frontal view of female anatomy The cervix (from Latin neck) is the lower, narrow portion of the uterus where it joins with the top end of the vagina. ... The uterus or womb is the major female reproductive organ of most mammals, including humans. ... The Fallopian tubes, also known as oviducts, uterine tubes, and salpinges (singular salpinx), are two very fine tubes leading from the ovaries of female mammals into the uterus. ... A human ovum Sperm cells attempting to fertilize an ovum An ovum (plural ova) is a haploid female reproductive cell or gamete. ... An orgasm, also known as a sexual climax, is a pleasurable psychological or emotional response to prolonged sexual stimulation. ... Fertilisation or fertilization (also known as conception, fecundation and syngamy), is fusion of gametes to form a new organism of the same species. ... It has been suggested that embryology be merged into this article or section. ... The endometrium is the inner membrane of the mammalian uterus. ... A pregnant woman near the end of her term Pregnancy is the carrying of one or more embryos or fetuses by female mammals, including humans, inside their bodies. ...


Act in which the male reproductive organ enters the female reproductive tract (see reproductive system). Various sexual activities (foreplay) lead to physiological changes that progress to orgasm (climax) and resolution (see sexual response). If it is completed, semen passes from the male into the female's body. If conditions favour fertilization, a sperm joins with an egg, and pregnancy begins (see fertility; reproduction); contraception can prevent this. Intercourse with an unwilling partner is rape. See also reproductive behaviour; sexuality, human; sexually transmitted disease.


Other forms of sexual intercourse

Oral sex

Main article: Oral sex

Oral sex consists of all the sexual activities that involve the use of the mouth, tongue, and possibly throat to stimulate genitalia. It is sometimes performed to the exclusion of all other forms of sexual activity. Oral sex may include the ingestion or absorption of semen or vaginal fluids. Oral sex consists of all sexual activities that involve the use of the mouth, tongue, teeth, and possibly the throat, to stimulate genitalia. ... This article is about sex acts and practices (i. ... It has been suggested that this article or section be merged with mouth (human). ... For other uses, see Tongue (disambiguation). ... Look up Throat in Wiktionary, the free dictionary. ... A sex organ, or primary sexual characteristic, narrowly defined, is any of those anatomical parts of the body (which are not always bodily organs according to the strict definition) which are involved in sexual reproduction and constitute the reproductive system in a complex organism; namely: Male: penis (notably the glans... Horse semen being collected for breeding purposes. ... Vaginal lubrication is the naturally produced lubricating fluid that reduces friction during sexual intercourse. ...


Anal sex

Main article: Anal sex

While there are many sexual acts involving the anus, anal cavity, sphincter valve and/or rectum, the specific meaning describes the insertion of a man's penis into another person's rectum. Roman men having anal sex. ... Female Human Anatomy Male Human Anatomy This article is about the bodily orifice. ... The rectum (from the Latin rectum intestinum, meaning straight intestine) is the final straight portion of the large intestine in some mammals, and the gut in others, terminating in the anus. ... The penis (plural penises, penes) is an external male sexual organ. ...


Functions of sex beyond reproduction

The woman on top sex position is frequently combined with kissing, caressing and embracing.
The woman on top sex position is frequently combined with kissing, caressing and embracing.

Humans, bonobos[1] and dolphins[2] are all species known to have non-reproductive sex, apparently for the sake of pleasure. All three engage in heterosexual behaviors even when the female is not in estrus, that is, at a point in her reproductive cycle suitable for successful impregnation. (These three species, and others besides, are also known to engage in homosexual behaviors.[3]) Artwork by Rama. ... Artwork by Rama. ... The reverse missionary position, jackhammer, or cowgirl, is a type of sex position. ... Human beings are defined variously in biological, spiritual, and cultural terms, or in combinations thereof. ... Binomial name Pan paniscus Schwarz, 1929 Bonobo distribution The Bonobo (Pan paniscus), until recently usually called the Pygmy Chimpanzee and less often the Dwarf or Gracile Chimpanzee, is one of the two species comprising the chimpanzee genus, Pan. ... Genera See article below. ... Estrus (also spelled œstrus) or heat in female mammals is the period of greatest female sexual responsiveness usually coinciding with ovulation. ...


In both humans and bonobos the female undergoes relatively concealed ovulation, so that both male and female partners commonly do not know whether she is fertile at any given moment. One possible reason for this distinct biological feature may be formation of strong emotional bonds between sexual partners important for social interactions and, in the case of humans, long-term partnership rather than immediate sexual reproduction.[4] Human and bonobo females have concealed ovulation or hidden estrus. ...


Humans, bonobos and dolphins are all intelligent social animals, whose cooperative behavior proves far more successful than that of any individual alone. In these animals, the use of sex has evolved beyond reproduction apparently to serve additional social functions. Sex reinforces intimate social bonds between individuals to form larger social structures. The resulting cooperation encourages collective tasks that promote the survival of each member of the group.


Alex Comfort[citation needed] and others [4] posit three potential advantages of intercourse in humans, which are not mutually exclusive: reproductive, relational, and recreational. While the development of the Pill and other highly-effective forms of contraception in the mid- and late 20th century increased peoples' ability to segregate these three functions, they still overlap a great deal and in complex patterns. For example: A fertile couple may have intercourse while contracepting not only to experience sexual pleasure (recreational), but also as a means of emotional intimacy (relational), thus making their relationship more stable and more capable of sustaining children in the future (deferred reproductive). This same couple may emphasize different aspects of intercourse on different occasions, being playful during one episode of intercourse (recreational), experiencing deep emotional connection on another occasion (relational), and later, after discontinuing contraception, seeking to achieve pregnancy (reproductive, or more likely reproductive and relational). Alexander Comfort (February 10, 1920 - March 26, 2000) was a medical professional, anarchist, pacifist and writer, best known for The Joy of Sex, which played a part in what is often called the sexual revolution. ... Oral contraceptives are contraceptives which are taken orally and inhibit the bodys fertility by chemical means. ...


Coitus difficulties

While well-suited for effective stimulation of the penis, coitus is much less effective at stimulating the clitoris, the seat of the female orgasm, because it is small and outside the vagina. Up to 70 percent of women[5] rarely or never achieve orgasm during coitus without simultaneous direct stimulation of the clitoris with the fingers or other implement. Most women do require such direct stimulation, and ignorance or disregard of this fact is seen as a common cause of female anorgasmia. The clitoris (Greek ) is a female sexual organ. ... Anorgasmia (also known as Retarded Ejaculation in males) is a form of sexual dysfunction, sometimes classified as a psychiatric disorder, where the patient cannot achieve orgasm, even with adequate stimulation. ...


Anorgasmia is the lack of orgasm during otherwise pleasurable stimulation. It is much more common in women than men. The condition may be related to a psychological discomfort with or aversion to sexual pleasure, or to a basic lack of knowledge of what the woman finds physically pleasing and is likely to result in orgasm.[citation needed] A sense of shame, or the feeling that she "should" be able to climax can compound the problem, along with feelings of shame on the part of her partner, who may believe that he does not excite her sufficiently.[citation needed] Masturbation is a well supported method for a woman to explore her body and discover what feels good for her. The absence of a partner can remove the sense of performance anxiety and allow the woman to relax and enjoy. Good communication and patience are essential in helping an anorgasmic woman achieve orgasm. Whether a woman considers anorgasmia a problem or not is highly individual, though many women find it very frustrating. Look up Climax in Wiktionary, the free dictionary. ... Mulher sentada de coxas abertas, 1916 drawing by Gustav Klimt Masturbation refers to sexual stimulation, particularly of ones own genitals and often to the point of orgasm, which is performed manually, by other types of bodily contact (except for sexual intercourse), by use of objects or tools, or by...


Some males suffer from erectile dysfunction (ED), or impotence, at least occasionally. For those whose impotence is caused by medical conditions, prescription drugs such as Viagra, Cialis, and Levitra are available. However, doctors caution against the unnecessary use of these drugs because they are accompanied by serious risks such as increased chance of heart attack. Moreover, using a drug to counteract the symptom — impotence — can mask the underlying problem causing the impotence and does not resolve it. A serious medical condition might be aggravated if left untreated. Erectile dysfunction (ED) or impotence is a sexual dysfunction characterized by the inability to develop or maintain an erection of the penis. ... Impotence or, more clinically, erectile dysfunction is the inability to develop or maintain an erection of the penis for satisfactory sexual intercourse regardless of the capability of ejaculation. ... // ... Categories: PDE5 inhibitors | Stub | Sexology ... Categories: Pages needing attention | Medicine stubs | Sexology | PDE5 inhibitors ...


A more common sexual disorder in males is premature ejaculation (PE). The U.S. Food and Drug Administration is examining the drug dapoxetine to treat premature ejaculation. In clinical trials, those with PE who took dapoxetine experienced intercourse three to four times longer before orgasm than without the drug. Premature ejaculation (PE), also known as rapid ejaculation, premature climax, early ejaculation, or by the Latin term ejaculatio praecox, is the most common sexual problem in men, affecting 25%-40% of men. ... The Food and Drug Administration (FDA) is an agency of the United States Department of Health and Human Services and is responsible for regulating food (humans and animal), dietary supplements, drugs (human and animal), cosmetics, medical devices (human and animal) and radiation emitting devices (including non-medical devices), biologics, and... Dapoxetine is the International Nonproprietary Name of a drug currently being considered for approval by the FDA for the treatment of premature ejaculation in men, which would make it the first drug approved for such treatment. ...


The American Urological Association (AUA) estimates that premature ejaculation could affect 27 to 34 percent of men in the United States. The AUA also estimates that 10 to 12 percent of men in the United States are affected by erectile dysfunction.


Vaginismus is involuntary tensing of the pelvic floor musculature, making coitus distressing, painful, and sometimes impossible. Vaginismus is a condition which affects a womans ability to engage in any form of vaginal penetration, including sexual penetration, insertion of tampons, and the penetration involved in gynecological examinations. ...


Dyspareunia is a medical term signifying painful or uncomfortable intercourse, but does not specify the cause. Dyspareunia is painful sexual intercourse, due to medical or psychological causes. ...


Sexual ethics and legality

Unlike some other sexual activities, vaginal intercourse has rarely been made taboo on religious grounds or by government authorities, as procreation is inherently essential to the continuation to the species or of any particular genetic line, which is considered to be a positive factor, and indeed, enables most societies to continue in the first place. Many of the cultures that had prohibited sexual intercourse entirely no longer exist; an exception is the Shakers, a sect of Christianity that has four adherents at current. There are, however, many communities within cultures that prohibit their members to engage in any form of sex, especially members of religious orders and the priesthood in the Roman Catholic Church and priests in Buddhist monasteries. Within some ideologies, coitus has been considered the only "acceptable" sexual activity. Relatively strict designations of "appropriate" and "inappropriate" sexual intercourse have been in human culture for hundreds of years. These have included prohibitions against specific positions, but even more often against: Taboo, or people that are considered undesirable by a group, culture, or society. ... Various Religious symbols, including (first row) Christian, Jewish, Hindu, Bahai, (second row) Islamic, tribal, Taoist, Shinto (third row) Buddhist, Sikh, Hindu, Jain, (fourth row) Ayyavazhi, Triple Goddess, Maltese cross, pre-Christian Slavonic Religion is the adherence to codified beliefs and rituals that generally involve a faith in a spiritual... The Shakers, a Protestant religious denomination, originated in Manchester, England in 1772 under the leadership of Mother Ann Lee, who moved the 9-person group to New York in 1774. ... A sect is generally a small religious or political group that has branched off from a larger established group. ... Christianity is a monotheistic[1] religion centered on the life and teachings of Jesus of Nazareth as presented in the New Testament. ... The Roman Catholic Church or Catholic Church (see terminology below) is the Christian Church in full communion with the Bishop of Rome, currently Pope Benedict XVI. It traces its origins to the original Christian community founded by Jesus Christ and led by the Twelve Apostles, in particular Saint Peter. ... A replica of an ancient statue found among the ruins of a temple at Sarnath Buddhism is a philosophy based on the teachings of the Buddha, Siddhārtha Gautama, a prince of the Shakyas, whose lifetime is traditionally given as 566 to 486 BCE. It had subsequently been accepted by... This list of sex positions includes descriptions of various forms of sexual intercourse and other sexual acts between people. ...

  • Coitus among partners who are not married (this is sometimes referred to as fornication)
  • Coitus with a close relative (called incest). This may also be called inbreeding in slang terms.
  • Coitus among partners of different species (called bestiality).

More controversially in some societies there are (or have been in the past) taboos (social, religious and sometimes legal) against sexual relations with persons of differing ethnic, tribal or social (e.g caste) backgrounds. “Matrimony” redirects here. ... Fornication is a term which refers to sexual intercourse between consenting unmarried partners. ... Adultery is voluntary sexual intercourse between a married person and a partner other than the lawful spouse. ... It has been suggested that premarital sex be merged into this article or section. ... This article or section does not adequately cite its references or sources. ... Pedophilia, paedophilia or pædophilia (see spelling differences) is the paraphilia of being sexually attracted primarily or exclusively to prepubescent or peripubescent children. ... Look up Bestiality in Wiktionary, the free dictionary. ... Caste systems are traditional, hereditary systems of social stratification, enforced by law or common practice, based on classifications such as occupation, race, ethnicity, etc. ...


Some cultures and religions, such as Islam and Judaism, prohibit coitus during a woman's menstrual period. This may be because a sacred text specifically forbids it. There is no medical reason for abstaining at this time. Islam (Arabic:  ) is a monotheistic religion based upon the teachings of Muhammad, a 7th century Arab religious and political figure. ... Judaism is the religion of the Jewish people. ... Menstrual cycle The menstrual cycle is a recurring cycle of physiological changes in the females of some animal species that is associated with reproductive fertility. ...


Often a community adapts its legal definitions during case laws for settling disputes. For example, in 2003 the New Hampshire Supreme Court ruled that same-sex relations do not constitute sexual intercourse, based on a 1961 definition from Webster's Third New International Dictionary, in Blanchflower v. Blanchflower, and thereby an accused spouse in a divorce case was found not guilty of adultery based on this technicality. Case law (precedential law) is the body of judge-made law and legal decisions that interprets prior case law, statutes and other legal authority -- including doctrinal writings by legal scholars such as the Corpus Juris Secundum, Halsburys Laws of England or the doctinal writings found in the Recueil Dalloz... 2003 (MMIII) was a common year starting on Wednesday of the Gregorian calendar. ... The New Hampshire Supreme Court is the supreme court of the U. S. state of New Hampshire, and its sole appellate court seated in Concord. ... 1961 (MCMLXI) was a common year starting on Sunday (the link is to a full 1961 calendar). ... 1888 advertisement for Websters Dictionary Websters Dictionary is a common title given to English language dictionaries in the United States, deriving its name from American lexicographer Noah Webster. ... In its landmark decision in ‘’’Blanchflower v. ...


Most countries have age of consent laws specifying the minimum legal age for engaging in sexual intercourse. Sexual intercourse with a person against their will, or without their informed legal consent, is referred to as rape, and is considered a serious crime in many cultures around the world, including those found in Europe, northern and eastern Asia, and the Americas. Sex, regardless of consent, with a person under the age of consent is often considered to be sexual assault or statutory rape. The age of consent varies from country to country and often by state or region; commonly, the age of consent is set anywhere between thirteen and eighteen years of age, with sixteen years being the most common age the law sets. Sometimes, the age of consent is lowered for people near the same age wishing to participate in intercourse. For example, in Canada, the minimum age of consent for all couples is 14. However, the age of consent can go below 14 on the condition that the couple still aren't 2 years of age apart. There are exceptions in the case of anal sex or people in a position of trust/authority. Worldwide age of consent laws. ... Informed consent is a legal condition whereby a person can be said to have given consent based upon an appreciation and understanding of the facts and implications of an action. ... This article is 150 kilobytes or more in size. ... World map showing the location of Asia. ... World map showing the Americas CIA political map of the Americas The Americas are the lands of the Western hemisphere or New World consisting of the continents of North America[1] and South America with their associated islands and regions. ... Sexual assault is any undesired physical contact of a sexual nature perpetrated against another person. ... The examples and perspective in this article or section may not represent a worldwide view. ...


Religious views

Main article: Religious views on Sexual Intercourse
For a broad overview, see Religion and sexuality.

Religious views on sexual intercourse vary widely between religions, between different sects of the same religion, and even between different members of the same sect. Religious views on sexual intercourse vary widely by religion. ... Sexual morality varies greatly over time and between cultures. ...


See also

Look up sexual intercourse in
Wiktionary, the free dictionary.

Wikipedia does not have an article with this exact name. ... It has been suggested that French Wiktionary be merged into this article or section. ... It has been suggested that French Wiktionary be merged into this article or section. ... Safe sex (also called safer sex or protected sex) is a set of practices that are designed to reduce the risk of infection during sexual intercourse to avoid developing sexually transmitted diseases (STDs). ... Sex in space is distinguished mainly by the absence of gravity (unless the artificial gravity is created in the space ship) which leads to some difficulties surrounding the performing of most sexual activities. ... Sex magic is the use of sex activity—or the energies, passions or arousal states it evokes—as a point upon which to focus the will or magical desire in order to achieve spiritual advancement or effects in the real world. ... Sexual slang is any slang term which makes reference to sex, the sexual organs, or matters closely related to them. ... This article or section does not cite its references or sources. ... Orgasm is the conclusion of the plateau phase of the sexual response cycle, and is experienced by both males and females. ... A pair of lions copulating in the Maasai Mara, Kenya. ... This article is about sex acts and practices (i. ... Sexual orientation describes the direction of an individuals sexuality, often in relation to their own sex or gender. ... This article or section is in need of attention from an expert on the subject. ... This article or section does not adequately cite its references or sources. ... Homosexuality refers to sexual interaction and / or romantic attraction between individuals of the same sex. ... This article or section does not cite its references or sources. ... Transgender (IPA: , from trans (Latin) and gender (English) ) is an overarching term applied to a variety of individuals, behaviors, and groups involving tendencies that diverge from the normative gender role (woman or man) commonly, but not always, assigned at birth, as well as the role traditionally held by society. ... This list of sex positions includes descriptions of various forms of sexual intercourse and other sexual acts between people. ... This article is about penis-penis sex. ... Tribadism Tribadism or tribbing is female-to-female genital sex, sometimes called frottage. ... Oral sex consists of all sexual activities that involve the use of the mouth, tongue, teeth, and possibly the throat, to stimulate genitalia. ... Roman men having anal sex. ... Mulher sentada de coxas abertas, 1916 drawing by Gustav Klimt Masturbation refers to sexual stimulation, particularly of ones own genitals and often to the point of orgasm, which is performed manually, by other types of bodily contact (except for sexual intercourse), by use of objects or tools, or by... Listen to this article · (info) This audio file was created from an article revision dated 2006-12-04, and may not reflect subsequent edits to the article. ... Intercrural sex (from inter- and Latin crura, legs), also known as femoral/interfemoral sex/intercourse, is a type of intercourse variously regarded as penetrative [1] and non-penetrative sex , in which one partner places his penis between the other partners thighs (often with lubrication [1]), and thrusts to create... The basic idea of sexual fetishism is sexual arousal and satisfaction through an inanimate object, the fetish. ... A collar is a common symbol in BDSM. Female bottom in bondage with leather monoglove BDSM is any of a number of related patterns of human sexual behavior. ... Paraphilic infantilism is the desire to wear diapers and be treated as a helpless infant. ... A sex toy is a term for any object or device that is primarily used in facilitating human sexual pleasure. ... A woman pegging a man doggy-style with a 4-strap harness and dildo, using the corner of the bed to adjust to the height most comfortable for penetration Pegging describes a sexual practice by which a man is anally penetrated by a woman wearing a strap-on dildo or... It has been suggested that womanizer be merged into this article or section. ... This article or section does not cite its references or sources. ... This article or section does not cite its references or sources. ... Biological reproduction is the biological process by which new individual organisms are produced. ... Sexual dysfunction or sexual malfunction (see also sexual function) is difficulty during any stage of the sexual act (which includes desire, arousal, orgasm, and resolution) that prevents the individual or couple from enjoying sexual activity. ... Anorgasmia (also known as Retarded Ejaculation in males) is a form of sexual dysfunction, sometimes classified as a psychiatric disorder, where the patient cannot achieve orgasm, even with adequate stimulation. ... Erectile dysfunction (ED) or impotence is a sexual dysfunction characterized by the inability to develop or maintain an erection of the penis. ... Post Ejaculatory Guilt Syndrome, or PEGS, is a little known but widely experienced sexual dysfunction which lasts for approximately 5 minutes after the male orgasm. ... This article or section does not cite its references or sources. ... Dildonics are electronic sex toys that can be controlled by a computer. ...

References

  1. ^ Frans de Waal, "Bonobo Sex and Society", Scientific American (March 1995): 82-86.
  2. ^ Dinitia Smith, "Central Park Zoo's gay penguins ignite debate", San Francisco Chronicle (February 7, 2004). Available online at http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2004/02/07/MNG3N4RAV41.DTL.
  3. ^ Bruce Bagemihl, Biological Exuberance: Animal Homosexuality and Natural Diversity (St. Martin's Press, 1999). ISBN 0-312-19239-8
  4. ^ a b Jared Diamond (1992). The rise and fall of the third chimpanzee. Vintage. ISBN 978-0099913801. 
  5. ^ Sexual Honesty, by Women, For Women, by Shere Hite (1974)

Frans B.M. de Waal, PhD (b. ... Shere Hite Shere Hite (born November 2, 1942 in Saint Joseph, Missouri) is a sex educator and feminist. ...

External links


  Results from FactBites:
 
Discovery Health :: Sexual Intercourse (514 words)
Sexual intercourse, or coitus, refers in a strict biological sense to the insertion of the male's penis into the female's vagina for the purpose of reproduction.
These three types of intercourse are: vaginal intercourse, involving vaginal penetration by the penis, possibly to the point of male ejaculation and female orgasm; oral intercourse, involving oral caress of the sex organs (male or female), possibly to the point of orgasm; and anal intercourse, involving insertion of the male's penis into his partner's anus.
Sexual intercourse is among the most intimate behaviors possible between two people, and, for many people, it is also one of the most pleasurable and emotionally satisfying.
:: Intercourse Position - Best Sites :: And More Intercourse Position- Sexual Intercourse picture position Sexual ... (388 words)
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  More results at FactBites »

 
 

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