Ten minutes of sex is normal. Generally speaking, it is not considered premature ejaculation if you have sex for more than 2 minutes, or if you thrust back and forth in the vagina more than 10~30 times. The average time of Chinese men’s sex life is about 4~15 minutes, and a few men can reach 30 minutes. If the sex time is more than 3 hours and the man does not ejaculate, it is often abnormal. In short, the time of sex varies from person to person, and sexual life skills and their own physical condition has a lot to do with, not a uniform standard, as long as the time period, both sides through the appropriate sexual stimulation and achieve the same sexual pleasure, even if the sex life is satisfactory.