Nipple erection can identify a woman's orgasm (sex knowledge adult novel)

1. Before orgasm, some people will experience a sexual blush on some parts of their skin.
This is due to blood redistribution, with blood in the body suddenly flowing to the body surface, causing congestion of the superficial blood vessels under the skin. Sexual flush mainly appears on the face, chest, and breasts, and congestion may also occur on the skin all over the body.
2. Muscle tension occurs.
Due to the increased muscle excitability, muscle tension occurs in some muscles of the whole body, from involuntary contraction to regular contraction. During orgasm, muscle spasms may occur, mainly manifested as hand and foot cramps, facial distortion or body twisting.
3. Breathing and heart rate increase.
Due to the excitement of the central nervous system, blood pressure rises, muscles contract, aerobic metabolism accelerates, and the demand for oxygen increases, resulting in faster breathing and heart rate. During orgasm, the breathing rate can reach 40 times/minute, sometimes accompanied by rhythmic moaning; the heart rate increases to 120 beats/minute, and in some women even as high as 150-160 beats/minute.
4. Feelings change.
When women reach orgasm, some may experience confusion, decreased vision and hearing, or even temporary fainting; some women may also experience decreased or absent sense of taste and smell. When entering the regression phase, it gradually returns to normal
5. During orgasm, the female vaginal muscles, especially the muscles at the external opening of the vagina, will undergo obvious, violent, powerful and pleasant contractions, which have a significant gripping effect on the penis. This contraction usually occurs 3 to 15 times, once every 0.8 seconds, lasting 2 to 4 seconds, or longer, and bringing a high degree of self-pleasure. The contraction of the vaginal muscles is particularly obvious in women who are in good physical condition and have never given birth.
Finally, there will be an unconscious shaking of the woman's pelvic floor (especially the vaginal levator muscles and anal sphincter) while these muscles will consciously and deliberately contract rhythmically. Immediately afterwards, the uterus undergoes rhythmic contractions, developing from the fundus of the uterus to the cervix. During the climax phase, muscle spasms occur more frequently and last longer. Some people describe it as feeling like a slight electric shock, or as if a warm current is flowing from the lower body to the whole body.
6. The nipple of the breast will experience an erection reaction, the muscle fibers in the breast tissue will contract involuntarily, the blood vessels will become congested, and the nipple will become erect and hard. Once orgasm is reached, the breast skin becomes red and hot, and the swelling of the areola becomes more obvious.
Female orgasms are generally diverse. A survey and analysis of the orgasms of 936 married women of childbearing age showed that there are eight common types of orgasms: vaginal contraction type, body warmth type, body shaking type, electric current passing type, laughter and carnival type, floating in the air type, moaning and restless type, and drunkenness and haziness type. Some manifestations are the simultaneous occurrence of two, three, or four types. Among them, double and single types are the most common, accounting for about 66%, and the vast majority (about 88%) hug each other tightly during the climax. Of course, 10% to 12% of women have never had an orgasm, about 5% of women only have pleasure but no orgasm; and about 7% of women have neither pleasure nor orgasm.