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. 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. However, bonobos, dolphins and chimpanzees are known to engage in sexual intercourse regardless of whether the female is in estrus, and to engage in sex acts with same-sex partners.

HIV is one of the world’s leading infectious killers; in 2010, approximately 30 million people were estimated to have died because of it since the beginning of the epidemic. Many times, STIs initially do not cause symptoms, increasing the risk of unknowingly passing the infection on to a sex partner or others. The same pattern of late marriage and reciprocal valuing of virginity was reflected in Singapore and Sri Lanka. Conception and contraception are additionally a life-and-death situation in developing countries, where one in three women give birth before age 20; however, 90% of unsafe abortions in these countries could be prevented by effective contraception use. Safe sex is a relevant harm reduction philosophy and condoms are used as a form of safe sex and contraception. For gay male pairings, there is the option of surrogate pregnancy; for lesbian couples, there is donor insemination in addition to choosing surrogate pregnancy.

Articles relating to sexual intercourse (coitus, copulation), the insertion and thrusting of the male penis inside the female vagina for sexual pleasure, reproduction, or both. Ken Plumber argued that the legal meaning “of rape in most countries is unlawful sexual intercourse which means the penis must penetrate the vagina” and that “other forms of sexual violence towards women such as forced oral sex or anal intercourse, or the insertion of other objects into the vagina, constitute the ‘less serious’ crime of sexual assault”. 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. Sexual intercourse (also coitus or copulation) is a sexual activity typically involving the insertion of the erect male penis inside the female vagina and followed by thrusting motions for sexual pleasure, reproduction, or both. The most effective way to avoid sexually transmitted infections is to abstain from sexual intercourse, especially vaginal, anal, and oral sexual 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. Religious beliefs also play a role in personal decisions about sexual intercourse or other sexual activity, such as decisions about coitus virginity, or legal and public policy matters. It usually encompasses sexual penetration, while non-penetrative sex has been labeled outercourse, but non-penetrative sex may also be considered sexual intercourse. There are different views on what constitutes sexual intercourse or other sexual activity, which can impact views of sexual health.

Synonyms of coitus

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. Sexual addiction or hypersexuality is often considered an impulse control disorder or a behavioral addiction. Sexual activity can increase the expression of a gene transcription factor called ΔFosB (delta FosB) in the brain’s reward center; consequently excessively frequent engagement in sexual activity on a regular (daily) basis can lead to the overexpression of ΔFosB, inducing an addiction to sexual activity. 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.

• Before mating and copulation, the male spider spins a small web and ejaculates on it.
• Most men can learn to intentionally delay their own arousal and orgasm by practicing this doing masturbation.
• Vaginal sex, and less often vaginal intercourse, may also denote any vaginal sexual activity, particularly if penetrative, including sexual activity between lesbian couples.
• Vaginal, anal and oral sex are recognized as sexual intercourse more often than other sexual behaviors.

Stimulation

Vaginal intercourse between private individuals is part of their private sphere. If they meet a fertilisable egg cell after or during an ovulation, or if an ovulation occurs hours or days later, one sperm can fertilize it. The desire for sensual pleasure is usually the main motivation for humans, and sometimes the wish to have a baby or more children. Following insertion, additional stimulation is often achieved through rhythmic pelvic thrusting or a gyration of the hips, among other techniques. Before mating and copulation, the male spider spins a small web and ejaculates on it. Concerning no-fault divorce jurisdictions, author James G. 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.

Vaginal, anal and oral sex are recognized as sexual intercourse more often than other sexual behaviors. Copulation, by contrast, more often denotes the mating process, especially for non-human animals; it can mean a variety of sexual activities between opposite-sex or same-sex pairings, but generally means the sexually reproductive act of transferring sperm from a male to a female or sexual procreation between a man and a woman. Vaginal sex, and less often vaginal intercourse, may also denote any vaginal sexual activity, particularly if penetrative, including sexual activity between lesbian couples. The other techniques were also part of her coaching for women who wished to experience orgasm during vaginal intercourse as much as their partner. The hypothesis of two modes of female orgasm – vaginal or clitoral – is not tenable. For women, pelvic floor training and active movements of their pelvis during vaginal intercourse increase the chance of orgasm.

• Articles relating to sexual intercourse (coitus, copulation), the insertion and thrusting of the male penis inside the female vagina for sexual pleasure, reproduction, or both.
• Other studies report that the lack of sexual intercourse does not significantly result in divorce, though it is commonly one of the various contributors to it.
• Reconstructive surgery remains an option for women who have experienced benign and malignant conditions.
• These activities involve physical intimacy between two or more people and are usually used among humans solely for physical or emotional pleasure.

Translations of coitus

Artificial insemination is a form of assisted reproductive technology, which are methods used to achieve pregnancy by artificial or partially artificial means. Millions of sperm are ejaculated to increase the chances of fertilization (see sperm competition), but only one is sufficient to fertilize an egg or ovum. In this way, they stimulate themselves and each other, often continuing until orgasm in either or both partners is achieved. Sex pheromones facilitate copulatory reflexes in various organisms, but, in humans, the detection of pheromones is impaired and they have only residual effects. Scholars Richard M. 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.

Safe sex and birth control

In women, the glans clitoridis lies at a distance to the vaginal entrance, often without physical contact. The reason why men are faster in achieving orgasm is that the glans penis is constantly enveloped by the vagina; it is continuously stimulated, making it likely that moving it in and out repeatedly will cause him to have an orgasm relatively soon. In humans, learned behaviour also plays an important role (sexual scripts). In all mammals including humans, penile penetration of the vagina is an instinctual behaviour serving the continuation of the species.

Category:Sexual intercourse

Most men can learn to intentionally delay their own arousal and orgasm by practicing this doing masturbation. A man’s arousal curve usually rises faster, while women need plenty of time. The needs for movements are individually different for both women and men. The sex positions, the pelvic movements of the woman and the man, how slowly or quickly they are performed, and the lesser or greater depth have an influence on the two arousal curves. The most common reason was that they put the man’s pleasure above their own and tended toward submissiveness during sex.

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 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. Sexual intercourse, reproductive act in which the male reproductive organ (in humans and other higher animals) enters the female reproductive tract. In 2021, a study of 3017 American women identified the ways women have discovered to make vaginal sex with a male partner more pleasurable and arousing for themselves. In case of insufficient vaginal lubrication or excessive temporal extension of the coitus, the mucous membranes may become sore due to mechanical irritation. For the woman, physical sexual arousal and clitoral erection resulting from the foreplay are the prerequisites for the reaction of the intravaginal G-spot.

It may also be that conceptually conflating sexual activity with vaginal intercourse and sexual function hinders and limits information about sexual behavior that non-heterosexual people may be engaging in, or information about heterosexuals who may be engaging in non–vaginal sexual activity. Although sex and having sex also most commonly denote penile–vaginal intercourse, sex can be significantly broad in its meaning and may cover any penetrative or non-penetrative sexual activity between two or more people. The clitoral glans has an essential function in triggering sexual arousal and then orgasm, For many women, the movement of the penis in the vagina causes only a limited increase in their arousal. Preparation for vaginal coitus usually involves foreplay in the form of various combinations of caresses, petting, manual sex, oral sex.

Like humans engaging in sexual activity primarily for pleasure, this behavior in these animals is also presumed to be for pleasure, and a contributing factor to strengthening their social bonds. 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 penetration is an instinctive form of sexual behaviour and psychology among humans. During the breeding season, hormones are produced in both the male and female species that prepare their reproductive systems for copulation. In the excitement stage, the body prepares for sexual activity by tensing muscles and increasing heart rate. The male’s ability to produce and secrete semen, as well as to function sexually, is dependent on the androgen hormones, which circulate in the male’s body.

Phrases Containing coitus

Lack of sexual education about contraception often leads to teenage pregnancy. Some countries consider same-sex sexual behavior an offense punishable by imprisonment or execution; this is the case, for example, in Islamic countries, including LGBT issues in Iran. This is why familial sexual relationships are criminalized, even if all parties are consensual.

For women, there is often a complaint about the lack of their spouses’ sexual spontaneity. According to the 2010 National Survey of Sexual Health and Behavior (NSSHB), men whose most recent sexual encounter was with a relationship partner reported greater arousal, greater pleasure, fewer problems with erectile function, orgasm, and less pain during the event than men whose last sexual encounter was with a non-relationship partner. Some research, however, indicates that general dissatisfaction with marriage for men results if their wives flirted with, erotically kissed or became romantically or sexually involved with another man (infidelity), and that this is especially the case for men with a lower emotional and composite marital satisfaction. 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.

Almost 1 million American teenage women, 10% of all women aged 15–19 and 19% of those who report having had intercourse, become pregnant each year. Sexual intimacy and orgasms increase levels of the hormone oxytocin (also known as “the love hormone”), which can help people bond and build trust. However, sons are encouraged to gain experience with older women or prostitutes before marriage. Receptive anal intercourse was infrequent among men, with approximately 7% of men aged 14 to 94 years old having said that they were a receptive partner during anal intercourse. Clint E. Bruess et al. stated that it “is the most frequently studied behavior” and is “often the focus of sexuality education programming for youth.” Weiten et al. said that it “is the most widely endorsed and practiced sexual act in our society.” Condoms are widely recommended for the prevention of sexually transmitted infections (STIs).