Orgasm

sexual gratificationfemale orgasmclimaxclimaxescumvaginal orgasmdry orgasmmoaning in a sexual mannerOrgasmicorgasms
Orgasm (from Greek ὀργασμός orgasmos "excitement, swelling"; also sexual climax) is the sudden discharge of accumulated sexual excitement during the sexual response cycle, resulting in rhythmic muscular contractions in the pelvic region characterized by sexual pleasure.wikipedia
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Masturbation

masturbatingmasturbatemasturbates
Sexual stimulation can be by self-practice (masturbation) or with a sex partner (penetrative sex, non-penetrative sex, or other sexual activity).
Masturbation is the sexual stimulation of one's own genitals for sexual arousal or other sexual pleasure, usually to the point of orgasm.

Sexual stimulation

sexual pleasuresexually stimulatederotic pleasure
Human orgasms usually result from physical sexual stimulation of the penis in males (typically accompanying ejaculation) and of the clitoris in females.
Sexual stimulation is any stimulus (including bodily contact) that leads to, enhances and maintains sexual arousal, and may lead to orgasm.

Refractory period (sex)

refractory periodfeeling tired after having intercourserefactory (rest) period
The period after orgasm (known as the refractory period) is often a relaxing experience, attributed to the release of the neurohormones oxytocin and prolactin as well as endorphins (or "endogenous morphine").
In human sexuality, the refractory period is usually the recovery phase after orgasm during which it is physiologically impossible for a man to have additional orgasms.

Ejaculation

ejaculateejaculatedejaculates
Human orgasms usually result from physical sexual stimulation of the penis in males (typically accompanying ejaculation) and of the clitoris in females.
Ejaculation is the discharge of semen (normally containing sperm) from the male reproductory tract, usually accompanied by orgasm.

Sexual dysfunction

sexual disorderssexualsexual problems
There is also a wide range of sexual dysfunctions, such as anorgasmia.
Sexual dysfunction is difficulty experienced by an individual or a couple during any stage of a normal sexual activity, including physical pleasure, desire, preference, arousal or orgasm.

Anorgasmia

anorgasmicInhibited orgasmorgasm disorders
There is also a wide range of sexual dysfunctions, such as anorgasmia.
Anorgasmia is a type of sexual dysfunction in which a person cannot achieve orgasm despite adequate stimulation.

G-spot

Gräfenberg spotG spotG-spot amplification
There is some debate whether certain types of sexual sensations should be accurately classified as orgasms, including female orgasms caused by G-spot stimulation alone, and the demonstration of extended or continuous orgasms lasting several minutes or even an hour.
The G-spot, also called the Gräfenberg spot (for German gynecologist Ernst Gräfenberg), is characterized as an erogenous area of the vagina that, when stimulated, may lead to strong sexual arousal, powerful orgasms and potential female ejaculation.

Anal sex

analanal intercourseanal penetration
Orgasms can be achieved during a variety of activities, including vaginal, anal or oral sex, non-penetrative sex or masturbation.
People may experience pleasure from anal sex by stimulation of the anal nerve endings, and orgasm may be achieved through anal penetration – by indirect stimulation of the prostate in men, indirect stimulation of the clitoris or an area of the vagina (sometimes called the G-spot) in women, and other sensory nerves (especially the pudendal nerve).

Human sexual response cycle

sexual response cyclehuman sexual responsePlateau phase
Orgasm (from Greek ὀργασμός orgasmos "excitement, swelling"; also sexual climax) is the sudden discharge of accumulated sexual excitement during the sexual response cycle, resulting in rhythmic muscular contractions in the pelvic region characterized by sexual pleasure.
Also, the external anal sphincter may contract randomly upon contact (or later during orgasm without contact).

Autonomic nervous system

autonomicautonomous nervous systemautonomic functions
Experienced by males and females, orgasms are controlled by the involuntary or autonomic nervous system.
A more modern characterization is that the sympathetic nervous system is a "quick response mobilizing system" and the parasympathetic is a "more slowly activated dampening system", but even this has exceptions, such as in sexual arousal and orgasm, wherein both play a role.

Sexuality after spinal cord injury

Spinal cord injury causes sexual dysfunctionsex lives of persons with quadriplegiasexual dysfunction after injury
Although sexual function and sexuality after spinal cord injury is very often impacted, this injury does not deprive one of sexual feelings such as sexual arousal and erotic desires.
This results in lost or reduced sensation and muscle motion, and affects orgasm, erection, ejaculation, and vaginal lubrication.

Erogenous zone

erogenous zoneserogenousErogenic Zones
Achieving orgasm by stimulation of the nipples or other erogenous zones is rarer.
An erogenous zone (from Greek ἔρως, érōs "love" and English -genous "producing" from Greek -γενής, -genḗs "born") is an area of the human body that has heightened sensitivity, the stimulation of which may generate a sexual response, such as relaxation, the production of sexual fantasies, sexual arousal and orgasm.

Vibrator (sex toy)

vibratorvibratorsearly history of the vibrator
They may also be achieved by the use of a sex toy, such as a sensual vibrator or an erotic electrostimulation.
They can be applied to erogenous zones, such as the clitoris, the vulva or vagina, penis, scrotum or anus, for sexual stimulation, for the release of sexual frustration and to achieve orgasm.

Sexual arousal

sexually arousedarousalaroused
Although sexual function and sexuality after spinal cord injury is very often impacted, this injury does not deprive one of sexual feelings such as sexual arousal and erotic desires.
Given sufficient sexual stimulation, sexual arousal in humans reaches its climax during an orgasm.

Oxytocin

oxytocicsfirst synthesis of a polypeptide hormoneBonding in mammals
The period after orgasm (known as the refractory period) is often a relaxing experience, attributed to the release of the neurohormones oxytocin and prolactin as well as endorphins (or "endogenous morphine").
Studies have looked at oxytocin's role in various behaviors, including orgasm, social recognition, pair bonding, anxiety, in-group bias, situational lack of honesty, autism, and maternal behaviors.

Retrograde ejaculation

Coitus saxonicus
Dry orgasms can also occur as a result of retrograde ejaculation, or hypogonadism.
Retrograde ejaculation is sometimes referred to as a "dry orgasm."

Clitoris

clitoralclitoral glansglans clitoridis
Human orgasms usually result from physical sexual stimulation of the penis in males (typically accompanying ejaculation) and of the clitoris in females.
Such discussions range from anatomical accuracy, gender inequality, female genital mutilation, and orgasmic factors and their physiological explanation for the G-spot.

Sexual intercourse

sexcopulationintercourse
Orgasms can be achieved during a variety of activities, including vaginal, anal or oral sex, non-penetrative sex or masturbation.
For human females, stimulation of the clitoris plays a significant role in sexual activity; 70–80% of women require direct clitoral stimulation to achieve orgasm, though indirect clitoral stimulation (for example, via vaginal intercourse) may also be sufficient (see orgasm in females).

Human sexual activity

sexual activitysexual behaviorsex
Sexual stimulation can be by self-practice (masturbation) or with a sex partner (penetrative sex, non-penetrative sex, or other sexual activity).
Most people engage in sexual activity because of pleasure they derive from the arousal of their sexuality, especially if they can achieve orgasm.

Forced orgasm

In addition to physical stimulation, orgasm can be achieved from psychological arousal alone, such as during dreaming (nocturnal emission for males or females) or by forced orgasm.
A forced orgasm is consensual BDSM or kinky sexual play whereby a person consents to be forced to orgasm despite their attempts to delay or not to orgasm.

Human penis

penispenisesdick
Human orgasms usually result from physical sexual stimulation of the penis in males (typically accompanying ejaculation) and of the clitoris in females.
Ejaculation is the ejecting of semen from the penis, and is usually accompanied by orgasm.

Masters and Johnson

Human Sexual ResponseHuman Sexual InadequacyWilliam H. Masters and Virginia E. Johnson
In 1966, Masters and Johnson published pivotal research about the phases of sexual stimulation.
Their findings, particularly on the nature of female sexual arousal (for example, describing the mechanisms of vaginal lubrication and debunking the earlier widely held notion that vaginal lubrication originated from the cervix) and orgasm (showing that the physiology of orgasmic response was identical whether stimulation was clitoral or vaginal, and, separately, proving that some women were capable of being multiorgasmic), dispelled many long-standing misconceptions.

Fake orgasm

fake an orgasmfaked an orgasmfaked her orgasm
Scholars state "many couples are locked into the idea that orgasms should be achieved only through intercourse [vaginal sex]" and that "[e]ven the word foreplay suggests that any other form of sexual stimulation is merely preparation for the 'main event.'... ...Because women reach orgasm through intercourse less consistently than men, they are more likely than men to have faked an orgasm".
A fake orgasm occurs when a person pretends to have an orgasm without actually experiencing one.

Non-penetrative sex

mutual masturbationdry humpingdry hump
Sexual stimulation can be by self-practice (masturbation) or with a sex partner (penetrative sex, non-penetrative sex, or other sexual activity). Orgasms can be achieved during a variety of activities, including vaginal, anal or oral sex, non-penetrative sex or masturbation.
It might result in one or more of the partners achieving orgasm.

Cunnilingus

oral sexgoes downCunnilinctus
He cites research concluding that women reach orgasm about 25% of the time with intercourse, compared with 81% of the time during oral sex (cunnilingus).
The clitoris is the most sexually sensitive part of the human female genitalia, and its stimulation may result in a woman becoming sexually aroused or achieving orgasm.