Penile–vaginal intercourse

Following insertion, additional stimulation is often achieved through rhythmic pelvic thrusting or a gyration of the hips, among other techniques.

The resulting zygote develops into the early embryonic stages and, in the meantime, migrates from the fallopian tube into the uterus.

For people who do not want (another) child, contraception has made it possible to separate vaginal intercourse from its biological function of procreation.

[6][7][page needed][8] Worldwide, about 57 per cent of couples with women of reproductive age use modern methods of contraception.

[9] 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.

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.

Nowadays intimate intercourse between unmarried teenagers is permitted and common in many countries, but not in Muslim culture.

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.

[33] In women, regular orgasms during vaginal sex correlate positively with passion, love and relationship quality.

[37][38] As preliminary for the natural procreation of a new human being, for females penile–vaginal intercourse is connected with various attributes like psychological onto sacramental aspects beyond the reproductive function.

[43] Data from an online survey in the United States suggest that a proportion of men engage in sexual behaviours described as dominant and purposeful, in which they mimic behaviors seen in porn.

[44] Unless a woman's pain has a physical cause, it is often related to impatient partner action or lack of open communication.

The prevention of sexual disappointment and dyspareunia caused by the behaviour of the male partner is summarized by Betty Dodson in the following words: It’s a pleasure to be with a man who is self-assured, confident in his ability to get erect and maintain his erection long enough to enjoy the dance of erotic love.

[45]In all mammals including humans, penile penetration of the vagina is an instinctual behaviour serving the continuation of the species.

For the woman, physical sexual arousal and clitoral erection resulting from the foreplay are the prerequisites for the reaction of the intravaginal G-spot.

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.

[51][52] For women, pelvic floor training and active movements of their pelvis during vaginal intercourse increase the chance of orgasm.

[56] Sexually experienced men use delaying techniques to give their female partner the time she needs.

[57][58][59][60] The reason why men are faster by nature: In a man, his glans penis is constantly enveloped by the vagina, it is continuously stimulated, making it likely that moving in and out will cause him to have an orgasm relatively soon.

Many women reach orgasm when both the extravaginally located parts of the clitoris and the erogenous zones inside the vagina are continuously stimulated simultaneously for long enough.

In case of insufficient vaginal lubrication or excessive temporal extension of the coitus, the mucous membranes may become sore due to mechanical irritation.

[84] Pairing has been tested successfully since the 1970s by Betty Dodson in her coachings for women suffering from anorgasmia by using a dildo to penetrate the vagina and a vibrator to place next to the clitoral glans.

The other techniques were also part of her coaching for women who wished to experience orgasm during vaginal intercourse as much as their partner.