"sex adult product factory" said the female vagina is the most important sex organ. In sex, vaginal changes will occur according to different sex schedule. Recently, the British science writer in the "Women Health" magazine has written to introduce the "vagina learning."
Is connected to the upper end of the vagina uterus, the lower end of the vagina. Vagina usually 7-12 cm long, the width can accommodate two fingers. There are many transverse vaginal wall folds when sexual arousal, vaginal length and width can be increased by 3 times, does not appear difficult to accommodate the phenomenon of male genitalia.
"sex adult product factory" said Under normal circumstances, the average temperature of the vagina is 37 degrees Celsius, but in the excitement of congestion, the temperature inside the vagina quickly rose to 38.5 degrees Celsius, so that men of blood flow to accelerate, excited. When a female lying down, vagina and the bed to the horizontal angle of 15 degrees downward.
After the course of life, women are foreplay to stimulate the vagina will lengthen and expand, cervix and uterus are pulled upward slowly backwards. Due to vascular congestion, vaginal wall color will change from the original purple red to deep purple, while the secretion Aiye.
"sex adult product factory" said the orgasm comes, will last 2-4 seconds before vaginal spasm contraction, firmly "hold" penis, and then began to shrink regular intervals of 0.8 seconds. Meanwhile, a large number of secretion Aiye help play lubrication.
After sex, the gradual relaxation of the body's muscle tension, vascular congestion gradually dissipated. This stage often last for 5-10 minutes. Vaginal color has also been restored, from deep purple back the usual purple red, this process takes 10-15 minutes.