Orgasm

An orgasm is a sexual climax or peak. Orgasm occurs as a result of continued sexual stimulation. During an orgasm, there is a strong feeling of excitement and intense physical pleasure. Sexual stimulation may be sexual intercourse, hand rubbing and squeezing, called masturbation, or other activities that excite the sex organs. During an orgasm, a person's body usually spasms (shakes or trembles) and the person's brain activity changes quickly. Orgasms may happen when people are asleep. When men ejaculate in their sleep, this is often called a "wet dream".

Orgasms happen to other mammals when they have sex, in a similar way.

Male orgasm

The penis usually becomes hard before an orgasm, and softens again after. When a man has an orgasm, he feels a very strong and enjoyable feeling, sometimes throughout his entire body. In a man, an orgasm usually happens at the same time as an ejaculation, which is an involuntary release of semen through the penis. Young boys can orgasm, but there may be no semen because semen release usually occurs only after puberty has started. After an orgasm, men usually experience a deep sense of relaxation, usually felt in the groin and the thighs. Usually the stronger the orgasm, the deeper the relaxation and the longer the relaxation will last.

Female orgasm

A woman's orgasm begins in her clitoris, which is the counterpart of the man's penis. It is preceded by an erection of the clitoris and a moistening of the opening of the vagina. When a woman experiences a full orgasm, her uterus, vagina, anus, and pelvic muscles undergo a series of rhythmic contractions. Most women find these contractions very pleasurable.