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Lerner and Laurence Steinberg state that researchers also "rarely disclose" how they conceptualize sex "or even whether they resolved potential discrepancies" in conceptualizations of sex.

Studies regarding the meaning of sexual intercourse sometimes conflict. While most consider penile—vaginal intercourse to be sex, whether anal or oral intercourse are considered sex is more debatable, with oral sex ranking lowest.

Sexual intercourse or other sexual activity can encompass various sexually stimulating factors physiological stimulation or psychological stimulation , including different sex positions such as the missionary position , the most common human sex position or the use of sex toys.

Non- primate females copulate only when in estrus , [53] but sexual intercourse is possible at any time of the menstrual cycle for women.

During coitus, the partners orient their hips to allow the penis to move back and forth in the vagina to cause friction, typically without fully removing the penis.

In this way, they stimulate themselves and each other, often continuing until orgasm in either or both partners is achieved. Anal sex involves stimulation of the anus , anal cavity, sphincter valve or rectum ; it most commonly means the insertion of a man's penis into another person's rectum, but may also mean the use of sex toys or fingers to penetrate the anus, or oral sex on the anus anilingus , or pegging.

Oral sex consists of all the sexual activities that involve the use of the mouth and throat to stimulate genitalia or anus.

It is sometimes performed to the exclusion of all other forms of sexual activity, and may include the ingestion or absorption of semen during fellatio or vaginal fluids during cunnilingus.

Fingering or digital penetration or digital intercourse involves the manual manipulation of the clitoris, rest of the vulva , vagina or anus for the purpose of sexual arousal and sexual stimulation; it may constitute the entire sexual encounter or it may be part of mutual masturbation, foreplay or other sexual activities.

Natural human reproduction involves penile—vaginal penetration, [70] during which semen , containing male gametes known as sperm cells or spermatozoa, is expelled via ejaculation through the penis into the vagina.

The sperm passes through the vaginal vault , cervix and into the uterus , and then into the fallopian tubes. Millions of sperm are present in each ejaculation to increase the chances of fertilization see sperm competition , but only one reaching an egg or ovum is sufficient to achieve fertilization.

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 the endometrium and a pregnancy begins.

Pregnancy rates for sexual intercourse are highest during the menstrual cycle time from some 5 days before until 1 to 2 days after ovulation.

When a sperm donor has sexual intercourse with a woman who is not his partner and for the sole purpose of impregnating the woman, this may be known as natural insemination , as opposed to artificial insemination.

Artificial insemination is a form of assisted reproductive technology , which are methods used to achieve pregnancy by artificial or partially artificial means.

For gay male pairings, there is the option of surrogate pregnancy; for lesbian couples, there is donor insemination in addition to choosing surrogate pregnancy.

There are a variety of safe sex methods that are practiced by heterosexual and same-sex couples, including non-penetrative sex acts, [12] [81] and heterosexual couples may use oral or anal sex or both as a means of birth control.

Safe sex is a relevant harm reduction philosophy [86] and condoms are used as a form of safe sex and contraception. Condoms are widely recommended for the prevention of sexually transmitted infections STIs.

Decisions and options concerning birth control can be affected by cultural reasons, such as religion, gender roles or folklore.

Penile—vaginal penetration is the most common form of sexual intercourse. Bruess et al. Regarding oral or anal intercourse, the CDC stated in , "Studies indicate that oral sex is commonly practiced by sexually active male-female and same-gender couples of various ages, including adolescents.

The study said that fewer women reported engaging in anal sex than other partnered sexual behaviors. The prevalence of sexual intercourse has been compared cross-culturally.

In the second group, the data indicated families encouraged daughters to delay marriage, and to abstain from sexual activity before that time.

However, sons are encouraged to gain experience with older women or prostitutes before marriage. Age of men at sexual initiation in these societies is at lower ages than that of women; this group includes south European and Latin cultures Portugal, Greece and Romania are noted and such from Latin America Brazil, Chile , and the Dominican Republic.

The study considered many Asian societies to also fall into this group, although matching data was only available from Thailand.

In the third group, age of men and women at sexual initiation was more closely matched; there were two sub-groups, however. In non-Latin, Catholic countries Poland and Lithuania are mentioned , age at sexual initiation was higher, suggesting later marriage and reciprocal valuing of male and female virginity.

The same pattern of late marriage and reciprocal valuing of virginity was reflected in Singapore and Sri Lanka. The study considered China and Vietnam to also fall into this group, though data were not available.

Concerning United States data, tabulations by the National Center for Health Statistics report that the age of first sexual intercourse was In humans, sexual intercourse and sexual activity in general have been reported as having health benefits as varied as increased immunity by increasing the body's production of antibodies and subsequent lower blood pressure , [99] [] and decreased risk of prostate cancer.

Sexually transmitted infections STIs are bacteria , viruses or parasites that are spread by sexual contact, especially vaginal, anal, or oral intercourse, or unprotected sex.

There are 19 million new cases of sexually transmitted infections every year in the U. Of the 2. The World Health Organization also stated that the "estimated 1.

In cases where infection is suspected, early medical intervention is highly beneficial in all cases. They added that "several co-factors may increase the risk of HIV transmission through oral sex"; this includes ulcers, bleeding gums , genital sores, and the presence of other STIs.

In , the World Health Organization estimated that million women become pregnant worldwide each year, and around 87 million of those pregnancies or Approximately 46 million pregnancies per year reportedly end in induced abortion.

However, many more women become pregnant and miscarry without even realizing it, instead mistaking the miscarriage for an unusually heavy menstruation.

This data includes live births, abortions, and fetal losses. It has been linked to atypical levels of dopamine, a neurotransmitter.

This behavior is characterized by a fixation on sexual intercourse and disinhibition. It was proposed that this 'addictive behavior' be classified in DSM-5 as an impulsive—compulsive behavioral disorder.

Addiction to sexual intercourse is thought to be genetically linked. Those having an addiction to sexual intercourse have a higher response to visual sexual cues in the brain.

Those seeking treatment will typically see a physician for pharmacological management and therapy. It is manifested by hypersomnia and hypersexuality and remains relatively rare.

Sexual activity can directly cause death , particularly due to coronary circulation complications, which is sometimes called coital death, coital sudden death or coital coronary.

Sexual intercourse, when involving a male participant, often ends when the male has ejaculated, and thus the partner might not have time to reach orgasm.

In , scholars from the Kinsey Institute stated, "The truth is that the time between penetration and ejaculation varies not only from man to man, but from one time to the next for the same man.

But he didn't ask if the men or their partners considered two minutes mutually satisfying" and "more recent research reports slightly longer times for intercourse".

Anorgasmia is regular difficulty reaching orgasm after ample sexual stimulation, causing personal distress. Vaginismus is involuntary tensing of the pelvic floor musculature, making coitus, or any form of penetration of the vagina, distressing, painful and sometimes impossible for women.

It is a conditioned reflex of the pubococcygeus muscle, and is sometimes referred to as the PC muscle. Vaginismus can be hard to overcome because if a woman expects to experience pain during sexual intercourse, this can cause a muscle spasm, which results in painful sexual intercourse.

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.

Sexual intercourse remains possible after major medical treatment of the reproductive organs and structures. This is especially true for women.

Even after extensive gynecological surgical procedures such as hysterectomy , oophorectomy , salpingectomy , dilation and curettage , hymenotomy , Bartholin gland surgery, abscess removal, vestibulectomy , labia minora reduction, cervical conization , surgical and radiological cancer treatments and chemotherapy , coitus can continue.

Reconstructive surgery remains an option for women who have experienced benign and malignant conditions. Obstacles that those with disabilities face with regard to engaging in sexual intercourse include pain, depression , fatigue, negative body image , stiffness, functional impairment, anxiety, reduced libido , hormonal imbalance, and drug treatment or side effects.

Sexual functioning has been regularly identified as a neglected area of the quality of life in patients with rheumatoid arthritis.

The mentally disabled also are subject to challenges in participating in sexual intercourse. Women with Intellectual disabilities ID are often presented with situations that prevent sexual intercourse.

This can include the lack of a knowledgeable healthcare provider trained and experienced in counseling those with ID on sexual intercourse.

Those with ID may have hesitations regarding the discussion of the topic of sex, a lack of sexual knowledge and limited opportunities for sex education.

In addition there are other barriers such as a higher prevalence of sexual abuse and assault. These crimes often remain underreported.

There remains a lack of "dialogue around this population's human right to consensual sexual expression, undertreatment of menstrual disorders, and legal and systemic barriers".

Women with ID may lack sexual health care and sex education. They may not recognize sexual abuse. Consensual sexual intercourse is not always an option for some.

Those with ID may have limited knowledge and access to contraception, screening for sexually transmitted infections and cervical cancer.

Sexual intercourse may be for reproductive, relational, or recreational purposes. In humans and bonobos , the female undergoes relatively concealed ovulation so that 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.

Sexual dissatisfaction due to the lack of sexual intercourse is associated with increased risk of divorce and relationship dissolution, especially for men.

For women, there is often a complaint about the lack of their spouses' sexual spontaneity. Decreased sexual activity among these women may be the result of their perceived failure to maintain ideal physical attractiveness or because their sexual partners' health issues have hindered sexual intercourse.

Research additionally indicates that non-married couples who are cohabiting engage in sexual intercourse more often than married couples, and are more likely to participate in sexual activity outside of their sexual relationships; this may be due to the " honeymoon " effect the newness or novelty of sexual intercourse with the partner , since sexual intercourse is usually practiced less the longer a couple is married, with couples engaging in sexual intercourse or other sexual activity once or twice a week, or approximately six to seven times a month.

Adolescents commonly use sexual intercourse for relational and recreational purposes, which may negatively or positively impact their lives. For example, while teenage pregnancy may be welcomed in some cultures, it is also commonly disparaged, and research suggests that the earlier onset of puberty for children puts pressure on children and teenagers to act like adults before they are emotionally or cognitively ready.

Some studies from the s through s suggested an association between self-esteem and sexual intercourse among adolescents, [] while other studies, from the s and s, reported that the research generally indicates little or no relationship between self-esteem and sexual activity among adolescents.

Psychiatrist Lynn Ponton wrote, "All adolescents have sex lives, whether they are sexually active with others, with themselves, or seemingly not at all", and that viewing adolescent sexuality as a potentially positive experience, rather than as something inherently dangerous, may help young people develop healthier patterns and make more positive choices regarding sexual activity.

High-quality romantic relationships are associated with higher commitment in early adulthood, [] and are positively associated with social competence.

While sexual intercourse, as coitus, is the natural mode of reproduction for the human species, humans have intricate moral and ethical guidelines which regulate the practice of sexual intercourse and vary according to religious and governmental laws.

Some governments and religions also have strict designations of "appropriate" and "inappropriate" sexual behavior, which include restrictions on the types of sex acts which are permissible.

A historically prohibited or regulated sex act is anal sex. Sexual intercourse with a person against their will, or without their consent , is rape , but may also be called sexual assault ; it is considered a serious crime in most countries.

Most countries have age of consent laws which set the minimum legal age with whom an older person may engage in sexual intercourse, usually set at 16 to 18, but ranges from 12 to 20, years of age.

In some societies, an age of consent is set by non-statutory custom or tradition. Some countries treat any sex with a person of diminished or insufficient mental capacity to give consent, regardless of age, as rape.

Robert Francoeur et al. Kalbfleisch and Michael J. Over time, the meaning of rape broadened in some parts of the world to include many types of sexual penetration, including anal intercourse, fellatio, cunnilingus, and penetration of the genitals or rectum by an inanimate object.

In , they changed the meaning from "The carnal knowledge of a female forcibly and against her will" to "The penetration, no matter how slight, of the vagina or anus with any body part or object, or oral penetration by a sex organ of another person, without the consent of the victim.

In most societies around the world, the concept of incest exists and is criminalized. James Roffee, a senior lecturer in criminology at Monash University , [] addressed potential harm associated with familial sexual activity, such as resulting children born with deficiencies.

However, the law is more concerned with protecting the rights of people who are potentially subjected to such abuse.

This is why familial sexual relationships are criminalized, even if all parties are consensual. There are laws prohibiting all kinds of sexual activity between relatives, not necessarily penetrative sex.

These laws refer to grandparents, parents, children, siblings, aunts and uncles. There are differences between states in terms of the severity of punishments and what they consider to be a relative, including biological parents, step-parents, adoptive parents and half-siblings.

Another sexual matter concerning consent is zoophilia , which is a paraphilia involving sexual activity between human and non-human animals, or a fixation on such practice.

Sexual intercourse has traditionally been considered an essential part of a marriage, with many religious customs requiring consummation of the marriage and citing marriage as the most appropriate union for sexual reproduction procreation.

Sexual relations between marriage partners have been a "marital right" in various societies and religions, both historically and in modern times, especially with regard to a husband's rights to his wife.

Adultery engaging in sexual intercourse with someone other than one's spouse has been, and remains, a criminal offense in some jurisdictions.

With regard to divorce laws , the refusal to engage in sexual intercourse with one's spouse may give rise to a grounds for divorce , which may be listed under "grounds of abandonment".

Dwyer stated that no-fault divorce laws "have made it much easier for a woman to exit a marital relationship, and wives have obtained greater control over their bodies while in a marriage" because of legislative and judicial changes regarding the concept of a marital exemption when a man rapes his wife.

There are various legal positions regarding the meaning and legality of sexual intercourse between persons of the same sex or gender. Blanchflower , it was held that female same-sex sexual relations, and same-sex sexual practices in general, did not constitute sexual intercourse, based on a entry in Webster's Third New International Dictionary that categorizes sexual intercourse as coitus; and thereby an accused wife in a divorce case was found not guilty of adultery.

Opposition to same-sex marriage is largely based on the belief that sexual intercourse and sexual orientation should be of a heterosexual nature.

A related issue is whether the word marriage should be applied. There are wide differences in religious views with regard to sexual intercourse in or outside of marriage:.

In some cases, the sexual intercourse between two people is seen as counter to religious law or doctrine. In many religious communities, including the Catholic Church and Mahayana Buddhists , religious leaders are expected to refrain from sexual intercourse in order to devote their full attention, energy, and loyalty to their religious duties.

In zoology , copulation often means the process in which a male introduces sperm into the female's body, especially directly into her reproductive tract.

Before mating and copulation, the male spider spins a small web and ejaculates on to it. He then stores the sperm in reservoirs on his large pedipalps , from which he transfers sperm to the female's genitals.

The females can store sperm indefinitely. Many animals that live in water use external fertilization , whereas internal fertilization may have developed from a need to maintain gametes in a liquid medium in the Late Ordovician epoch.

Internal fertilization with many vertebrates such as reptiles , some fish , and most birds occur via cloacal copulation see also hemipenis , while mammals copulate vaginally, and many basal vertebrates reproduce sexually with external fertilization.

For primitive insects , the male deposits spermatozoa on the substrate, sometimes stored within a special structure; courtship involves inducing the female to take up the sperm package into her genital opening, but there is no actual copulation.

In dragonflies, it is a set of modified sternites on the second abdominal segment. Bonobos, chimpanzees and dolphins are species known to engage in heterosexual behaviors even when the female is not in estrus, which is a point in her reproductive cycle suitable for successful impregnation.

These species are also known to engage in same-sex sexual behaviors. From Wikipedia, the free encyclopedia.

Redirected from Penis in vagina. This article is primarily about humans. For other animals, see Animal sexual behaviour.

For other uses, see Sex disambiguation. For copulation among other animals, see Copulation zoology. Copulation for reproduction or sexual pleasure, or other penetrative sex acts for sexual pleasure.

See also: Human sexual activity and Human sexuality. Main articles: Sexual reproduction and Human reproduction. See also: Coitus interruptus.

See also: Intravaginal ejaculation latency time and Coitus reservatus. Main article: Sexuality and disability. See also: Human mating strategies and Pair bond.

Main article: Adolescent sexuality. See also: Sexual ethics , Religion and sexuality , and Sex and the law. See also: Religion and sexuality.

Main articles: Copulation zoology and Animal sexual behaviour. See also: Sexual coercion. Human sexuality portal.

See, for example; "Sexual intercourse". Retrieved November 22, Retrieved December 5, Retrieved May 9, Richard M. Lerner ; Laurence Steinberg Handbook of Adolescent Psychology.

Retrieved April 29, Encyclopedia of Sex and Gender: A-C. Macmillan Reference. Sexual intercourse. This 'coming together' is generally understood in heteronormative terms as the penetration of a woman's vagina by a man's penis.

Irving B. Weiner; W. Edward Craighead The Corsini Encyclopedia of Psychology. Retrieved August 21, Human sexual intercourse, or coitus, is one of the most common sexual outlets among adults.

Sexual intercourse generally refers to penile penetration of the vagina. Clint E. Bruess; Elizabeth Schroeder Sexuality Education Theory and Practice.

In many cultures around the world, vaginal sex is what is usually implied when people refer to 'having sex' or 'sexual intercourse.

Cecie Starr; Beverly McMillan Human Biology. Cengage Learning. Retrieved December 27, Coitus and copulation are both technical terms for sexual intercourse.

The male sex act involves an erection, in which the limp penis stiffens and lengthens. It also involves ejaculation, the forceful expulsion of semen into the urethra and out from the penis.

The stimulation triggers rhythmic, involuntary contractions in smooth muscle in the male reproductive tract, especially the vas deferens and the prostate.

The contractions rapidly force sperm out of each epididymis. They also force the contents of seminal vesicles and the prostate gland into the urethra.

The resulting mixture, semen, is ejaculated into the vagina. Janell L. Carroll Sexuality Now: Embracing Diversity. Vaginal intercourse also referred to as sexual intercourse involves inserting the penis into the vagina.

Essential Concepts for Healthy Living. Most heterosexuals are familiar with the notion of 'having sex' or sexual intercourse as vaginal sex, the insertion of a penis into a vagina.

Vaginal sex, or coitus, is the most common and popular form of intimate sexual activity between partners.

Archived from the original on August 22, Retrieved January 12, Human Sexuality in a World of Diversity. Discovering Biological Psychology.

World Health Organization. January Retrieved September 5, In English, the term 'sex' is often used to mean 'sexual activity' and can cover a range of behaviours.

Other languages and cultures use different terms, with slightly different meanings. Nancy W. Denney; David Quadagno Human Sexuality. Mosby-Year Book.

Although the term intercourse is usually used to refer to the insertion of the penis into the vagina, it is also used to refer to oral intercourse or anal intercourse in which the penis is inserted into the mouth or the anus, respectively.

Dianne Hales Brief Edition 3rd ed. The Encyclopedia of Mental Health. Infobase Publishing. An Invitation to Health Brief — Sexually Transmitted Infections.

Elsevier Health Sciences. Carpenter LM NYU Press. Retrieved October 8, Most people agree that we maintain virginity as long as we refrain from sexual vaginal intercourse.

But occasionally we hear people speak of 'technical virginity' [ Advanced biology. Oxford University Press. Retrieved October 21, Pearson Education India.

Petri, John M. Govern Motivation: Theory, Research, and Application. Trends Ecol. Palgrave Macmillan. Fedwa Malti-Douglas Ada P.

Kahn; Jan Fawcett Carroll JL Discovery Series: Human Sexuality 1st ed. Health and Wellness for Life. Human Kinetics. Retrieved September 6, Retrieved August 23, Retrieved August 24, The widespread, unquestioned equation of penile—vaginal intercourse with sex reflects a failure to examine systematically 'whether the respondent's understanding of the question matches what the researcher had in mind.

Laura M. Carpenter In many cultures around the world, vaginal sex is what is usually implied when people refer to 'having sex' or 'sexual intercourse'.

It is the most frequently studied behavior and is often the focus of sexuality education programming for youth.

Retrieved March 30, Retrieved December 26, Concise Medical Dictionary. Retrieved July 4, Journal of Pediatric and Adolescent Gynecology.

Harvey B. Milkman; Kenneth W. Wanberg Retrieved October 9, Cohen But occasionally we hear people speak of 'technical virginity' Data indicate that 'a very significant proportion of teens ha[ve] had experience with oral sex, even if they haven't had sexual intercourse, and may think of themselves as virgins'.

Robert Crooks; Karla Baur Our Sexuality. Noncoital forms of sexual intimacy, which have been called outercourse, can be a viable form of birth control.

Outercourse includes all avenues of sexual intimacy other than penile—vaginal intercourse, including kissing, touching, mutual masturbation, and oral and anal sex.

UD, TK Like a Virgin. The Advocate. Here Publishing. Retrieved March 13, Retrieved February 12, Exploring the Dimensions of Human Sexuality.

McAnulty; M. Michele Burnette Andrew Baum; Tracey A. Revenson; Jerome Singer Handbook of Health Psychology 2nd ed. Psychology Press.

Having started with a discussion of penile-vaginal intercourse as the act that designates sexual initiation, as defined in most studies, we would like to undercut that position by stressing the need to define sex more broadly.

Retrieved April 30, Gender Power and Communication in Human Relationships. June Archived from the original PDF on May 10, Retrieved August 30, The Epidemic: A History of Aids.

Many men simply did not like the feel of condoms, or associated them with emasculation. They say, 'Unless it's flesh on flesh, it's not real sex Wekwete African Books Collective.

Lloyd; Dana S. Dunn; Elizabeth Yost Hammer Retrieved January 5, The man-above, or "missionary," position is the most common [sex position].

The Big Book of Sex Toys. In the female reproductive system, an external opening leads to the vagina , which in turn communicates with the uterus or womb , a thick-walled pear-shaped organ where the sperm fertilizes the egg and where the fetus develops.

In human beings, a pattern of physiological events occurs during sexual arousal and intercourse. These events may be identified as occurring in a sequence of four stages: excitement, plateau, orgasm, and resolution.

The basic pattern is similar in both sexes, regardless of the specific sexual stimulus. In the excitement stage , the body prepares for sexual activity by tensing muscles and increasing heart rate.

In the male, blood flows into the penis, causing it to become erect; in the female, the vaginal walls become moist, the inner part of the vagina becomes wider, and the clitoris enlarges.

In the plateau stage , breathing becomes more rapid and the muscles continue to tense. The glans at the head of the penis swells and the testes enlarge in the male.

In the female, the outer vagina contracts and the clitoris retracts. At orgasm the neuromuscular tension built up in the preceding stages is released in a few seconds.

In the woman, the vagina begins a series of regular contractions. In the man, the penis also contracts rhythmically, to expel the sperm and semen ejaculation.

The succeeding resolution stage brings a gradual return to the resting state that may take several hours.

In the male, the penis shrinks back to its normal size; in the female, the vagina and other genital structures also return to their pre-excitement condition.

The resolution stage in men contains a refractory period of several minutes to a few hours, during which the man is incapable of further sexual arousal.

Women have no such refractory period and can quickly become aroused again from any point in the resolution stage. In some animals, such as sheep and migratory birds, copulation occurs only seasonally.

During the breeding season, hormones are produced in both the male and female species that prepare their reproductive systems for copulation.

In the nonbreeding seasons, the hormone levels drop so that the animals are not capable of fertilized breeding and do not have the desire to engage in copulation.

Sexual intercourse. Article Media. Info Print Cite. Submit Feedback. Thank you for your feedback. The Editors of Encyclopaedia Britannica Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree

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There are differences between states in terms of the severity of punishments and what they consider to be a relative, including biological parents, step-parents, adoptive parents and half-siblings.

Another sexual matter concerning consent is zoophilia , which is a paraphilia involving sexual activity between human and non-human animals, or a fixation on such practice.

Sexual intercourse has traditionally been considered an essential part of a marriage, with many religious customs requiring consummation of the marriage and citing marriage as the most appropriate union for sexual reproduction procreation.

Sexual relations between marriage partners have been a "marital right" in various societies and religions, both historically and in modern times, especially with regard to a husband's rights to his wife.

Adultery engaging in sexual intercourse with someone other than one's spouse has been, and remains, a criminal offense in some jurisdictions.

With regard to divorce laws , the refusal to engage in sexual intercourse with one's spouse may give rise to a grounds for divorce , which may be listed under "grounds of abandonment".

Dwyer stated that no-fault divorce laws "have made it much easier for a woman to exit a marital relationship, and wives have obtained greater control over their bodies while in a marriage" because of legislative and judicial changes regarding the concept of a marital exemption when a man rapes his wife.

There are various legal positions regarding the meaning and legality of sexual intercourse between persons of the same sex or gender.

Blanchflower , it was held that female same-sex sexual relations, and same-sex sexual practices in general, did not constitute sexual intercourse, based on a entry in Webster's Third New International Dictionary that categorizes sexual intercourse as coitus; and thereby an accused wife in a divorce case was found not guilty of adultery.

Opposition to same-sex marriage is largely based on the belief that sexual intercourse and sexual orientation should be of a heterosexual nature.

A related issue is whether the word marriage should be applied. There are wide differences in religious views with regard to sexual intercourse in or outside of marriage:.

In some cases, the sexual intercourse between two people is seen as counter to religious law or doctrine. In many religious communities, including the Catholic Church and Mahayana Buddhists , religious leaders are expected to refrain from sexual intercourse in order to devote their full attention, energy, and loyalty to their religious duties.

In zoology , copulation often means the process in which a male introduces sperm into the female's body, especially directly into her reproductive tract.

Before mating and copulation, the male spider spins a small web and ejaculates on to it. He then stores the sperm in reservoirs on his large pedipalps , from which he transfers sperm to the female's genitals.

The females can store sperm indefinitely. Many animals that live in water use external fertilization , whereas internal fertilization may have developed from a need to maintain gametes in a liquid medium in the Late Ordovician epoch.

Internal fertilization with many vertebrates such as reptiles , some fish , and most birds occur via cloacal copulation see also hemipenis , while mammals copulate vaginally, and many basal vertebrates reproduce sexually with external fertilization.

For primitive insects , the male deposits spermatozoa on the substrate, sometimes stored within a special structure; courtship involves inducing the female to take up the sperm package into her genital opening, but there is no actual copulation.

In dragonflies, it is a set of modified sternites on the second abdominal segment. Bonobos, chimpanzees and dolphins are species known to engage in heterosexual behaviors even when the female is not in estrus, which is a point in her reproductive cycle suitable for successful impregnation.

These species are also known to engage in same-sex sexual behaviors. From Wikipedia, the free encyclopedia. Redirected from Penis in vagina. This article is primarily about humans.

For other animals, see Animal sexual behaviour. For other uses, see Sex disambiguation. For copulation among other animals, see Copulation zoology.

Copulation for reproduction or sexual pleasure, or other penetrative sex acts for sexual pleasure. See also: Human sexual activity and Human sexuality.

Main articles: Sexual reproduction and Human reproduction. See also: Coitus interruptus. See also: Intravaginal ejaculation latency time and Coitus reservatus.

Main article: Sexuality and disability. See also: Human mating strategies and Pair bond. Main article: Adolescent sexuality.

See also: Sexual ethics , Religion and sexuality , and Sex and the law. See also: Religion and sexuality.

Main articles: Copulation zoology and Animal sexual behaviour. See also: Sexual coercion. Human sexuality portal.

See, for example; "Sexual intercourse". Retrieved November 22, Retrieved December 5, Retrieved May 9, Richard M. Lerner ; Laurence Steinberg Handbook of Adolescent Psychology.

Retrieved April 29, Encyclopedia of Sex and Gender: A-C. Macmillan Reference. Sexual intercourse. This 'coming together' is generally understood in heteronormative terms as the penetration of a woman's vagina by a man's penis.

Irving B. Weiner; W. Edward Craighead The Corsini Encyclopedia of Psychology. Retrieved August 21, Human sexual intercourse, or coitus, is one of the most common sexual outlets among adults.

Sexual intercourse generally refers to penile penetration of the vagina. Clint E. Bruess; Elizabeth Schroeder Sexuality Education Theory and Practice.

In many cultures around the world, vaginal sex is what is usually implied when people refer to 'having sex' or 'sexual intercourse.

Cecie Starr; Beverly McMillan Human Biology. Cengage Learning. Retrieved December 27, Coitus and copulation are both technical terms for sexual intercourse.

The male sex act involves an erection, in which the limp penis stiffens and lengthens. It also involves ejaculation, the forceful expulsion of semen into the urethra and out from the penis.

The stimulation triggers rhythmic, involuntary contractions in smooth muscle in the male reproductive tract, especially the vas deferens and the prostate.

The contractions rapidly force sperm out of each epididymis. They also force the contents of seminal vesicles and the prostate gland into the urethra.

The resulting mixture, semen, is ejaculated into the vagina. Janell L. Carroll Sexuality Now: Embracing Diversity.

Vaginal intercourse also referred to as sexual intercourse involves inserting the penis into the vagina. Essential Concepts for Healthy Living.

Most heterosexuals are familiar with the notion of 'having sex' or sexual intercourse as vaginal sex, the insertion of a penis into a vagina.

Vaginal sex, or coitus, is the most common and popular form of intimate sexual activity between partners. Archived from the original on August 22, Retrieved January 12, Human Sexuality in a World of Diversity.

Discovering Biological Psychology. World Health Organization. January Retrieved September 5, In English, the term 'sex' is often used to mean 'sexual activity' and can cover a range of behaviours.

Other languages and cultures use different terms, with slightly different meanings. Nancy W. Denney; David Quadagno Human Sexuality.

Mosby-Year Book. Although the term intercourse is usually used to refer to the insertion of the penis into the vagina, it is also used to refer to oral intercourse or anal intercourse in which the penis is inserted into the mouth or the anus, respectively.

Dianne Hales Brief Edition 3rd ed. The Encyclopedia of Mental Health. Infobase Publishing. An Invitation to Health Brief — Sexually Transmitted Infections.

Elsevier Health Sciences. Carpenter LM NYU Press. Retrieved October 8, Most people agree that we maintain virginity as long as we refrain from sexual vaginal intercourse.

But occasionally we hear people speak of 'technical virginity' [ Advanced biology. Oxford University Press. Retrieved October 21, Pearson Education India.

Petri, John M. Govern Motivation: Theory, Research, and Application. Trends Ecol. Palgrave Macmillan. Fedwa Malti-Douglas Ada P. Kahn; Jan Fawcett Carroll JL Discovery Series: Human Sexuality 1st ed.

Health and Wellness for Life. Human Kinetics. Retrieved September 6, Retrieved August 23, Retrieved August 24, The widespread, unquestioned equation of penile—vaginal intercourse with sex reflects a failure to examine systematically 'whether the respondent's understanding of the question matches what the researcher had in mind.

Laura M. Carpenter In many cultures around the world, vaginal sex is what is usually implied when people refer to 'having sex' or 'sexual intercourse'.

It is the most frequently studied behavior and is often the focus of sexuality education programming for youth. Retrieved March 30, Retrieved December 26, Concise Medical Dictionary.

Retrieved July 4, Journal of Pediatric and Adolescent Gynecology. Harvey B. Milkman; Kenneth W. Wanberg Retrieved October 9, Cohen But occasionally we hear people speak of 'technical virginity' Data indicate that 'a very significant proportion of teens ha[ve] had experience with oral sex, even if they haven't had sexual intercourse, and may think of themselves as virgins'.

Robert Crooks; Karla Baur Our Sexuality. Noncoital forms of sexual intimacy, which have been called outercourse, can be a viable form of birth control.

Outercourse includes all avenues of sexual intimacy other than penile—vaginal intercourse, including kissing, touching, mutual masturbation, and oral and anal sex.

UD, TK Like a Virgin. The Advocate. Here Publishing. Retrieved March 13, Retrieved February 12, Exploring the Dimensions of Human Sexuality.

McAnulty; M. Michele Burnette Andrew Baum; Tracey A. Revenson; Jerome Singer Handbook of Health Psychology 2nd ed.

Psychology Press. Having started with a discussion of penile-vaginal intercourse as the act that designates sexual initiation, as defined in most studies, we would like to undercut that position by stressing the need to define sex more broadly.

Retrieved April 30, Gender Power and Communication in Human Relationships. June Archived from the original PDF on May 10, Retrieved August 30, The Epidemic: A History of Aids.

Many men simply did not like the feel of condoms, or associated them with emasculation. They say, 'Unless it's flesh on flesh, it's not real sex Wekwete African Books Collective.

Lloyd; Dana S. Dunn; Elizabeth Yost Hammer Retrieved January 5, The man-above, or "missionary," position is the most common [sex position].

The Big Book of Sex Toys. Retrieved June 9, Essential Concepts for Healthy Living Update. Retrieved December 9, Knobil and Neill's Physiology of Reproduction.

Reis; Susan Sprecher; Susan K. Sprecher Encyclopedia of Human Relationships. Oxford University Press, 2nd edition. Neurobiology of Chemical Communication.

Lotus Press. Retrieved August 17, Janicak A Lange clinical manual. Clinical Psychology Review. Obstetrics and Gynecology Clinics of North America. Most women report the inability to achieve orgasm with vaginal intercourse and require direct clitoral stimulation The case of the female orgasm: bias in the science of evolution.

Harvard University Press. The Journal of Urology. The Orgasm Answer Guide. JHU Press. Retrieved November 6, New York University Press.

Retrieved March 2, Retrieved June 23, Human Reproduction. Human Reproductive Biology. Academic Press. Retrieved November 8, Taking Charge of Your Fertility Revised ed.

New York: HarperCollins. Mayo Clinic. November 2, Retrieved February 16, National Institute for Health and Care Excellence. Published date: February Philip B.

American Pregnancy Association. The Handy Anatomy Answer Book. Visible Ink Press. Sharma Elsevier India.

Retrieved October 13, O'Toole Mosby's Medical Dictionary. Journal of Marriage and Family. Burda Gay, lesbian, and transgender clients: a lawyer's guide.

American Bar Association. Retrieved July 28, Durham; Felissa R. Lashley Springer Publishing Company. Retrieved January 29, Current Opinion in Obstetrics and Gynecology.

Murray Sex and the American teenager seeing through the myths and confronting the issues. Lanham, Md. American Journal of Preventive Medicine.

Hyatt Dulles Airport, Herndon, Virginia. Archived from the original PDF on March 7, Retrieved March 20, Archived from the original on May 9, Retrieved July 23, Sexually Transmitted Infections E book.

An Invitation to Health: Choosing to Change. The Journal of Sexual Medicine. Retrieved March 4, World comparisons and recent trends" PDF.

Population and Societies. Archived from the original PDF on March 4, Retrieved February 9, Richard Jennings; Maria M.

Susman Handbook of Behavioral Medicine: Methods and Applications. Retrieved December 7, Biology of Women. Life-Span Human Development.

Principles and Labs for Fitness and Wellness. February 22, Retrieved December 8, This article incorporates text from this source, which is in the public domain.

Medical microbiology 7th ed. Louis, MO: Mosby. Archived from the original on December 1, Mims' medical microbiology 5th ed. Edinburgh: Saunders.

Centers for Disease Control and Prevention. Retrieved September 15, Retrieved June 20, July 18, July Retrieved September 8, Retrieved December 6, Guttmacher Institute.

Archived from the original on December 23, November 16, Journal of Psychoactive Drugs. Current Neurology and Neuroscience Reports.

Nature and Science of Sleep. Serruys; Jeff Moses Textbook of Interventional Cardiovascular Pharmacology. CRC Press.

March 23, Systematic Review and Meta-analysis". Acute cardiac events were significantly associated with episodic physical and sexual activity; this association was attenuated among persons with high levels of habitual physical activity.

Standard Practice in Sexual Medicine. Retrieved October 22, Jannini; Chris G. McMahon; Marcel D. Waldinger Reinisch; Ruth Beasley In the human male, the penis serves both excretory and reproductive functions.

During intercourse, the blood flow is temporarily increased and trapped in the penis so that it becomes enlarged and elevated, a condition known as erection.

Erection changes the normally soft and flaccid organ to one of greater size and rigidity to permit easier penetration into the reproductive tract of the female.

In the female reproductive system, an external opening leads to the vagina , which in turn communicates with the uterus or womb , a thick-walled pear-shaped organ where the sperm fertilizes the egg and where the fetus develops.

In human beings, a pattern of physiological events occurs during sexual arousal and intercourse. These events may be identified as occurring in a sequence of four stages: excitement, plateau, orgasm, and resolution.

The basic pattern is similar in both sexes, regardless of the specific sexual stimulus. In the excitement stage , the body prepares for sexual activity by tensing muscles and increasing heart rate.

In the male, blood flows into the penis, causing it to become erect; in the female, the vaginal walls become moist, the inner part of the vagina becomes wider, and the clitoris enlarges.

In the plateau stage , breathing becomes more rapid and the muscles continue to tense. The glans at the head of the penis swells and the testes enlarge in the male.

In the female, the outer vagina contracts and the clitoris retracts. At orgasm the neuromuscular tension built up in the preceding stages is released in a few seconds.

In the woman, the vagina begins a series of regular contractions. In the man, the penis also contracts rhythmically, to expel the sperm and semen ejaculation.

The succeeding resolution stage brings a gradual return to the resting state that may take several hours. In the male, the penis shrinks back to its normal size; in the female, the vagina and other genital structures also return to their pre-excitement condition.

The resolution stage in men contains a refractory period of several minutes to a few hours, during which the man is incapable of further sexual arousal.

Women have no such refractory period and can quickly become aroused again from any point in the resolution stage. In some animals, such as sheep and migratory birds, copulation occurs only seasonally.

During the breeding season, hormones are produced in both the male and female species that prepare their reproductive systems for copulation.

In the nonbreeding seasons, the hormone levels drop so that the animals are not capable of fertilized breeding and do not have the desire to engage in copulation.

Sexual intercourse. Article Media. Info Print Cite.

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