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Penile–vaginal intercourse
Penile–vaginal intercourse, or vaginal intercourse, is the primary form of penetrative sexual intercourse in human sexuality, in which an erect penis is inserted into a vagina. It corresponds to mating or copulation in non-human animals. Synonyms are: vaginal sex, coitus (Latin: coitus per vaginam), (in elegant colloquial language) intimacy, or (poetic) lovemaking; some of which are used for other forms of intercourse as well. Cohabitation is a related term describing a living arrangement.
Various sex positions can be used. Following insertion, additional stimulation is often achieved through rhythmic pelvic thrusting or a gyration of the hips, among other techniques. The biological imperative is to achieve male ejaculation so that sperm can enter the female reproductive tract and fertilize the egg, thus beginning the next stage in human reproduction, pregnancy.
The desire for sensual pleasure is usually the main motivation for humans, and sometimes the wish to have a baby or more children. The biological function of vaginal intercourse is human reproduction. During coitus without a condom, sperm enter the vagina, first with the pre-ejaculate and then a larger amount through male ejaculation.
Sperm swim through the cervix and the uterus into the fallopian tubes of the woman. 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 resulting zygote develops into the early embryonic stages and, in the meantime, migrates from the fallopian tube into the uterus. The nidation of the embryo called blastocyst at this stage of development, with the beginning of the production of hCG marks the beginning of a pregnancy. Without contraceptives, during a woman's fertile days, there is a relatively high probability that conception will follow.
For people who do not want (another) child, contraception has made it possible to separate vaginal intercourse from its biological function of procreation.[page needed] Worldwide, about 57 per cent of couples with women of reproductive age use modern methods of contraception.
Since there is no mating season (estrus) in humans, the partners can have penile–vaginal intercourse distributed over the menstrual cycle regardless of the time of ovulation, even when the woman is already pregnant and after the menopause. The principles of safer sex eliminate the reproductive function. Couples who wish to have offspring can avail themselves of the tests for sexually transmitted infections recommended by the WHO, so that after ruling out or treating any detected infection, they can have penile–vaginal intercourse without using a condom.[excessive citations]
Vaginal intercourse between private individuals is part of their private sphere. Sexual intercourse between an adult and a young person is generally only permitted after the age of consent in the respective country has been reached, though some countries/jurisdictions have special exceptions to this rule. These exceptions may include when the minor is legally married to the adult or within no more than a specified age gap with the adult. Nowadays, intimate intercourse between unmarried teenagers is permitted and common in many countries, but not in Muslim culture. Lack of sexual education about contraception often leads to teenage pregnancy. In many countries, after marriage, the first cohabitation is considered a (sexual) "consummation of marriage". In countries with Sharia, the religious regulations from the Quran, which prohibit any sexual activity with a person to whom one is not married, are a part of the legislation. In every country of the world, vaginal intercourse performed without the consent of the other person constitutes rape.[citation needed]
A desire for pleasure is a natural motivation for sex in general. Human intimacy favours a pleasurable experience. For people who prefer non-committal sex, emotional closeness plays a lesser role. In studies consensual vaginal intercourse has been associated with signs of better physiological and psychological functions. In women, regular orgasms during vaginal sex correlate positively with passion, love and relationship quality.
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Penile–vaginal intercourse
Penile–vaginal intercourse, or vaginal intercourse, is the primary form of penetrative sexual intercourse in human sexuality, in which an erect penis is inserted into a vagina. It corresponds to mating or copulation in non-human animals. Synonyms are: vaginal sex, coitus (Latin: coitus per vaginam), (in elegant colloquial language) intimacy, or (poetic) lovemaking; some of which are used for other forms of intercourse as well. Cohabitation is a related term describing a living arrangement.
Various sex positions can be used. Following insertion, additional stimulation is often achieved through rhythmic pelvic thrusting or a gyration of the hips, among other techniques. The biological imperative is to achieve male ejaculation so that sperm can enter the female reproductive tract and fertilize the egg, thus beginning the next stage in human reproduction, pregnancy.
The desire for sensual pleasure is usually the main motivation for humans, and sometimes the wish to have a baby or more children. The biological function of vaginal intercourse is human reproduction. During coitus without a condom, sperm enter the vagina, first with the pre-ejaculate and then a larger amount through male ejaculation.
Sperm swim through the cervix and the uterus into the fallopian tubes of the woman. 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 resulting zygote develops into the early embryonic stages and, in the meantime, migrates from the fallopian tube into the uterus. The nidation of the embryo called blastocyst at this stage of development, with the beginning of the production of hCG marks the beginning of a pregnancy. Without contraceptives, during a woman's fertile days, there is a relatively high probability that conception will follow.
For people who do not want (another) child, contraception has made it possible to separate vaginal intercourse from its biological function of procreation.[page needed] Worldwide, about 57 per cent of couples with women of reproductive age use modern methods of contraception.
Since there is no mating season (estrus) in humans, the partners can have penile–vaginal intercourse distributed over the menstrual cycle regardless of the time of ovulation, even when the woman is already pregnant and after the menopause. The principles of safer sex eliminate the reproductive function. Couples who wish to have offspring can avail themselves of the tests for sexually transmitted infections recommended by the WHO, so that after ruling out or treating any detected infection, they can have penile–vaginal intercourse without using a condom.[excessive citations]
Vaginal intercourse between private individuals is part of their private sphere. Sexual intercourse between an adult and a young person is generally only permitted after the age of consent in the respective country has been reached, though some countries/jurisdictions have special exceptions to this rule. These exceptions may include when the minor is legally married to the adult or within no more than a specified age gap with the adult. Nowadays, intimate intercourse between unmarried teenagers is permitted and common in many countries, but not in Muslim culture. Lack of sexual education about contraception often leads to teenage pregnancy. In many countries, after marriage, the first cohabitation is considered a (sexual) "consummation of marriage". In countries with Sharia, the religious regulations from the Quran, which prohibit any sexual activity with a person to whom one is not married, are a part of the legislation. In every country of the world, vaginal intercourse performed without the consent of the other person constitutes rape.[citation needed]
A desire for pleasure is a natural motivation for sex in general. Human intimacy favours a pleasurable experience. For people who prefer non-committal sex, emotional closeness plays a lesser role. In studies consensual vaginal intercourse has been associated with signs of better physiological and psychological functions. In women, regular orgasms during vaginal sex correlate positively with passion, love and relationship quality.