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Various jurisdictions place restrictions on certain sexual acts, such as incest , sexual activity with minors , prostitution , rape , zoophilia , sodomy , premarital and extramarital sex.

Religious beliefs also play a role in personal decisions about sexual intercourse or other sexual activity, such as decisions about virginity , [13] [14] or legal and public policy matters.

Religious views on sexuality vary significantly between different religions and sects of the same religion, though there are common themes, such as prohibition of adultery.

Reproductive sexual intercourse between non-human animals is more often called copulation , and sperm may be introduced into the female's reproductive tract in non-vaginal ways among the animals, such as by cloacal copulation.

For most non-human mammals , mating and copulation occur at the point of estrus the most fertile period of time in the female's reproductive cycle , which increases the chances of successful impregnation.

Sexual intercourse may be called coitus , copulation , coition , or intercourse. Coitus is derived from the Latin word coitio or coire , meaning "a coming together or joining together" or "to go together", and is known under different ancient Latin names for a variety of sexual activities, but usually denotes penile—vaginal penetration.

Although sex and "having sex" also most commonly denote penile—vaginal intercourse, [26] sex can be significantly broad in its meaning and may cover any penetrative or non-penetrative sexual activity between two or more people.

Vaginal, anal and oral sex are recognized as sexual intercourse more often than other sexual behaviors. Researchers commonly use sexual intercourse to denote penile—vaginal intercourse while using specific words, such as anal sex or oral sex , for other sexual behaviors.

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 Human sexual intercourse.

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. The woman can also lie on her back with her partner standing and lifting her pelvis for penetration.

The woman can also rest her legs on her partner's shoulders during the act. Also called the doggy style, it involves penetrating the woman from behind while she is on her all fours.

There are many variations of this style like the man can raise his hips to penetrate the angled torso of his partner. This allows for maximum penetration.

The male partner can place his feet on each side of his woman partner while keeping the knees bent and rising up while penetrating.

Both partners may also consider lying on their side with their faces in the same direction — this is also called the spoons position and involves entering a woman's vagina from behind.

Also called a riding or cowgirl position, it refers to a group of different sex positions in which the woman is on top of his male partner.

The man is on his back and the woman sits on top of him facing back or forward. The man can insert his penis in woman's anus or vagina in this position.

It refers to a group of positions that allow for both vaginal and anal penetration. Both partners stand with their faces towards each other, but there are several variations, including a position in which the man stands and the woman wraps her legs around his partner's waist — the woman can also sit on a tall table or something while the man penetrates in a standing position.

The man sits with his legs outstretched and the woman on top with her legs wrapped around her partner. The male partner can also sit with his legs crossed and the woman sits in his lap with penis inside her vagina.

A simple variation involves the penetrating partner sitting in a chair and the receiving partner sitting in his lap with her legs hanging on both sides.

Many different positions are available for anal penetration during sexual intercourse between male and female humans.

Hedonism is a school of thought which argues that pleasure is the only intrinsic good. Human sexual activity, like many other kinds of activity engaged in by humans, is generally influenced by social rules that are culturally specific and vary widely.

These social rules are referred to as sexual morality what can and can not be done by society's rules and sexual norms what is and is not expected.

Some activities, known as sex crimes in some locations, are illegal in some jurisdictions, including those conducted between or among consenting and competent adults examples include sodomy law and adult-adult incest.

Some people who are in a relationship but want to hide polygamous activity possibly of opposite sexual orientation from their partner, may solicit consensual sexual activity with others through personal contacts, online chat rooms , or, advertising in select media.

Swinging , on the other hand, involves singles or partners in a committed relationship engaging in sexual activities with others as a recreational or social activity.

Some people engage in various sexual activities as a business transaction. When this involves having sex with, or performing certain actual sexual acts for another person in exchange for money or something of value, it is called prostitution.

Other aspects of the adult industry include phone sex operators, strip clubs , and pornography. Social gender roles can influence sexual behavior as well as the reaction of individuals and communities to certain incidents; the World Health Organization states that, "Sexual violence is also more likely to occur where beliefs in male sexual entitlement are strong, where gender roles are more rigid, and in countries experiencing high rates of other types of violence.

The relation between gender equality and sexual expression is recognized, and promotion of equity between men and women is crucial for attaining sexual and reproductive health , as stated by the UN International Conference on Population and Development Program of Action: [53].

BDSM is a variety of erotic practices or roleplaying involving bondage , dominance and submission , sadomasochism , and other interpersonal dynamics.

Given the wide range of practices, some of which may be engaged in by people who do not consider themselves as practicing BDSM, inclusion in the BDSM community or subculture is usually dependent on self-identification and shared experience.

BDSM communities generally welcome anyone with a non-normative streak who identifies with the community; this may include cross-dressers , extreme body modification enthusiasts, animal players , latex or rubber aficionados , and others.

Bondage includes the restraint of the body or mind. A submissive is someone who gives up the control to a person who wishes to take control.

Masochism means an individual who takes pleasure from their own pain or humiliation. Unlike the usual "power neutral" relationships and play styles commonly followed by couples, activities and relationships within a BDSM context are often characterized by the participants' taking on complementary, but unequal roles; thus, the idea of informed consent of both the partners becomes essential.

Participants who exert sexual dominance over their partners are known as dominants or tops , while participants who take the passive, receiving, or obedient role are known as submissives or bottoms.

Individuals are also sometimes abbreviated when referred to in writing, so a dominant person may be referred to as a "dom" for a man or a woman.

Sometimes a woman may choose to use the female specific term "Domme". Both terms are pronounced the same when spoken. The precise definition of roles and self-identification is a common subject of debate within the community.

In a study, the researchers state that BDSM is a sexual act where they play role games, use restraint, use power exchange, use suppression and pain is sometimes involved depending on individual s.

According to the findings, one who participates in BDSM may have greater strength socially and mentally as well as greater independence than those who do not practice BDSM.

Before any sexual act occurs, the partners must discuss their agreement of their relationship. They discuss how long the play will last, the intensity, their actions, what each participant needs or desires.

The sexual acts are all recorded as consensual and pleasurable to both parties. In a study, interviewed BDSM participants have mentioned that the activities have helped to create higher levels of connection, intimacy, trust and communication between partners.

The participants have remarked that they enjoy pleasing their partner in any way they can and many surveyed have felt that this is one of the best things about BDSM.

It gives a submissive pleasure to do things in general for their dominant. Where a Dominant enjoys making their encounters all about the submissive.

They enjoy doing things that makes their submissive happy. The findings indicate that the surveyed submissives and dominants found BDSM play more pleasurable and fun.

The participants have also mentioned improvements in their personal growth, romantic relationships, sense of community and self, the dominant's confidence, and their coping with everyday things by giving them a psychological release.

There are many laws and social customs which prohibit, or in some way affect sexual activities. These laws and customs vary from country to country, and have varied over time.

They cover, for example, a prohibition to non-consensual sex, to sex outside marriage, to sexual activity in public, besides many others.

Many of these restrictions are non-controversial, but some have been the subject of public debate. Most societies consider it a serious crime to force someone to engage in sexual acts or to engage in sexual activity with someone who does not consent.

This is called sexual assault , and if sexual penetration occurs it is called rape, the most serious kind of sexual assault.

The details of this distinction may vary among different legal jurisdictions. Also, what constitutes effective consent in sexual matters varies from culture to culture and is frequently debated.

Laws regulating the minimum age at which a person can consent to have sex age of consent are frequently the subject of debate, as is adolescent sexual behavior in general.

Some societies have forced marriage, where consent may not be required. Many locales have laws that limit or prohibit same-sex sexual activity.

In the West, sex before marriage is not illegal. Those found guilty, especially women, may be forced to wed the sexual partner, publicly beaten, or stoned to death.

Other studies have analyzed the changing attitudes about sex that American adolescents have outside marriage. Adolescents were asked how they felt about oral and vaginal sex in relation to their health, social, and emotional well-being.

Overall, teenagers felt that oral sex was viewed as more socially positive amongst their demographic. The laws of each jurisdiction set the minimum age at which a young person is allowed to engage in sexual activity.

In many jurisdictions, age of consent is a person's mental or functional age. Age of consent may vary by the type of sexual act, the sex of the actors, or other restrictions such as abuse of a position of trust.

Some jurisdictions also make allowances for young people engaged in sexual acts with each other. Most jurisdictions prohibit sexual activity between certain close relatives.

These laws vary to some extent; such acts are called incestuous. Non-consensual sexual activity or subjecting an unwilling person to witnessing a sexual activity are forms of sexual abuse , as well as in many countries certain non-consensual paraphilias such as frotteurism , telephone scatophilia indecent phonecalls , and non-consensual exhibitionism and voyeurism known as " indecent exposure " and " peeping tom " respectively.

People sometimes exchange sex for money or access to other resources. Work takes place under many varied circumstances. The person who receives payment for sexual services is known as a prostitute and the person who receives such services is referred to by a multitude of terms, such as being a client.

Prostitution is one of the branches of the sex industry. The legal status of prostitution varies from country to country , from being a punishable crime to a regulated profession.

Survival sex is a form of prostitution engaged in by people in need, usually when homeless or otherwise disadvantaged people trade sex for food, a place to sleep, or other basic needs , or for drugs.

From Wikipedia, the free encyclopedia. This article is about sexual practices and related social aspects.

For broader aspects of sexual behaviour, see Human sexuality. For sexual behaviour of other animals, see Animal sexual behaviour.

Human behaviour that is sexually motivated. Sexual touching depicted in an erotic sketch by Thomas Rowlandson.

Polygamy Polyandry Polygyny. Cicisbeo Concubinage Courtesan Mistress. Breakup Separation Annulment Divorce Widowhood.

Emotions and feelings. Main article: Human mating strategies. For the American rock band, see Pity Sex. The examples and perspective in this section may not represent a worldwide view of the subject.

You may improve this section , discuss the issue on the talk page , or create a new section, as appropriate. June Learn how and when to remove this template message.

See also: Sexually active life expectancy. Further information: Adolescent sexuality. Main article: Unintended pregnancy.

Main article: Sexually transmitted infection. See also: Sexuality in older age. Main article: Sexual orientation. Main article: Heterosexuality.

Main article: Homosexuality. See also: Gay sexual practices and Lesbian sexual practices. Main articles: Bisexuality and Pansexuality.

Main articles: Sexual morality , Religion and sexuality , and Norm sociology. Khajuraho Hindu and Jain temple complex is famous for erotic arts.

Main article: BDSM. Main article: Sex and the law. Main article: LGBT rights by country or territory.

Main article: Age of consent. This section does not cite any sources. Please help improve this section by adding citations to reliable sources.

Unsourced material may be challenged and removed. July Learn how and when to remove this template message. Main article: Legality of incest.

Main articles: Sexual abuse , Rape , and Sexual assault. Main article: Prostitution. Human sexuality portal. Child sexuality Erotic plasticity History of human sexuality Human female sexuality Human male sexuality Lesbian sexual practices Mechanics of human sexuality Orgasm control Orgastic potency Sexual activity during pregnancy Sociosexual orientation Transgender sexuality.

Channel 4. Archived from the original on 4 May Retrieved 30 June Think again — Sexual Fitness — physiology Men's Fitness". Archived from the original on 26 May Ecological and socio-cultural impacts on mating and marriage.

Oxford Handbook of Evolutionary Psychology, Schacter; Daniel T. Gilbert; Daniel M. Wegner

Penetratie van de vagina Een man die opgewonden is, kan een erectie krijgen. Man en vrouw hebben geslachtsgemeenschap.

De focus ligt op de penis die de vagina penetreert. Detail van de penis in de vagina inwendig gezien. Sperma verlaat de penis en gaat binnen in de baarmoeder.

Penetratie van de aars Een man en een vrouw of 2 mannen kunnen seks hebben met penetratie van de aars.

Geslachtsgemeenschap voorbeeld: 2 mannen liggen op hun zij. De ene ligt achter de andere. Geslachtsgemeenschap tijdens de menstruatie Sommige vrouwen willen geslachtsgemeenschap hebben tijdens de menstruatie , andere niet.

Variatie U hoeft niet altijd een orgasme te krijgen wanneer u seks heeft. Geslachtsgemeenschap voorbeeld 1: De man ligt op de vrouw. De vrouw spreidt haar benen.

Geslachtsgemeenschap voorbeeld 3: De man staat recht. De vrouw staat tegen hem. De man heft een van haar benen op. Geslachtsgemeenschap voorbeeld 4: De man ligt op zijn zij achter de vrouw.

Geslachtsgemeenschap voorbeeld 5: De vrouw zit op de man. Een condoom. More information or help needed?

Family doctor. You can talk to a family doctor about almost every intimate issue. If necessary the family doctor can refer you to a specialised health professional.

Find a family doctor in your neighbourhood:. Community health centre wijkgezondheidscentrum. You can visit a family doctor in a community health centre.

Other care professionals such as nurses and social workers also work at community health centres. Care is provided free of charge.

Find a community health centre in your neighbourhood:. Centre for general well-being - Help with all kinds of issues: a difficult relationship, medical, financial, administrative, legal or material problems, family problems, CAWs also provide assistance to victims of violence and abuse.

Find a CAW in your neighbourhood:. Sign Up. Languages English. All Images. Vector Illustration. Search by image.

Search RF with an image instead of text. Try dragging an image to the search box. Upload an Image.

Drag image here. Intercourse Stock Photos and Images 6 matches. Sort by : Relevance. Selective Focus. Number of people.

All Without People 1 person 2 people 3 people 4 people or more. Other Options. Cut Out. Do not include these words. Safe Search. Human behaviour that is sexually motivated.

Sexual touching depicted in an erotic sketch by Thomas Rowlandson. Polygamy Polyandry Polygyny. Cicisbeo Concubinage Courtesan Mistress. Breakup Separation Annulment Divorce Widowhood.

Emotions and feelings. Main article: Human mating strategies. For the American rock band, see Pity Sex. The examples and perspective in this section may not represent a worldwide view of the subject.

You may improve this section , discuss the issue on the talk page , or create a new section, as appropriate. June Learn how and when to remove this template message.

See also: Sexually active life expectancy. Further information: Adolescent sexuality. Main article: Unintended pregnancy. Main article: Sexually transmitted infection.

See also: Sexuality in older age. Main article: Sexual orientation. Main article: Heterosexuality. Main article: Homosexuality. See also: Gay sexual practices and Lesbian sexual practices.

Main articles: Bisexuality and Pansexuality. Main articles: Sexual morality , Religion and sexuality , and Norm sociology. Khajuraho Hindu and Jain temple complex is famous for erotic arts.

Main article: BDSM. Main article: Sex and the law. Main article: LGBT rights by country or territory. Main article: Age of consent. This section does not cite any sources.

Please help improve this section by adding citations to reliable sources. Unsourced material may be challenged and removed.

July Learn how and when to remove this template message. Main article: Legality of incest. Main articles: Sexual abuse , Rape , and Sexual assault.

Main article: Prostitution. Human sexuality portal. Child sexuality Erotic plasticity History of human sexuality Human female sexuality Human male sexuality Lesbian sexual practices Mechanics of human sexuality Orgasm control Orgastic potency Sexual activity during pregnancy Sociosexual orientation Transgender sexuality.

Channel 4. Archived from the original on 4 May Retrieved 30 June Think again — Sexual Fitness — physiology Men's Fitness".

Archived from the original on 26 May Ecological and socio-cultural impacts on mating and marriage. Oxford Handbook of Evolutionary Psychology, Schacter; Daniel T.

Gilbert; Daniel M. Wegner Retrieved 10 November Human Sexuality: From Cells to Society. Cengage Learning. Retrieved 17 September University of California, Santa Barbara.

Archived from the original on 25 July Retrieved 6 August Weiner; W. Edward Craighead The Corsini Encyclopedia of Psychology, Volume 2.

Sexual Activity and Sexual Desire. Routledge, 46 1. Archived from the original on 6 December Retrieved 24 December Men's Fitness. Retrieved 25 December The masks of hate: the problem of false solutions in the culture of an acquisitive society.

Pergamon Press. Diversity, Gender, and Sexuality in Nature and People. University of California Press. J Pers Soc Psychol.

Personality and Social Psychology Bulletin. Foundations of Psychiatric Mental Health Nursing. New York: W. Saunders Company.

Retrieved 6 January Child and Adolescent Development for Educators. New York: McGraw Hill, Health Psychology Submitted manuscript.

Journal of Youth and Adolescence. National Health Service. Retrieved 11 March Retrieved 11 October World Health Organization.

Retrieved 7 April Human Sexuality Today Sixth ed. Journal of Pathogens. Retrieved 1 October Hoffman, Barbara L. Whitridge John Whitridge , Retrieved 4 December This article incorporates text from this source, which is in the public domain.

From FindLaw. Retrieved 13 October Archived from the original on 28 September Retrieved 18 September Archived from the original on 1 January Journal of Sex Research.

Retrieved 9 February , from Dictionary. The Bisexual Index. Retrieved 14 March Sex from Plato to Paglia: a philosophical encyclopedia.

Greenwood Publishing Group. Retrieved 28 February Archived from the original on 21 July Questioning gender and sexual identity: Dynamic links over time.

Sex Roles. Published online 29 March Oxford Dictionaries. Archived from the original on 10 May Retrieved 15 August Electronic Journal of Human Sexuality.

Retrieved 24 January Sexuality and Gender Relations. Archived from the original on 17 August The Canadian Journal of Human Sexuality.

Leather Roses. Archived from the original on 11 January

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Intercourse Picture Of Human Being Video

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