Sex usually lasts about 3-10 minutes at a time is more appropriate. Sexual life time is considered by most people to be the time from the insertion of the penis into the woman’s vagina to ejaculation, excluding foreplay and afterplay time, known as the ejaculation latency period. It is appropriate for men to have sexual intercourse lasting 3-10 minutes each time. Sexual life can not be judged simply by the length of time to determine whether it is normal or not, but in a one-time life, as long as both men and women are satisfied, it is normal. If ejaculation occurs in less than 3 minutes and both parties are poorly satisfied with their sex life, there may be a case of premature ejaculation. It may be due to prolonged late night, smoking, psychological aspects and so on. Men can use double condoms, or apply lidocaine gel on the glans, oral dapoxetine and other drugs to achieve the purpose of effectively prolonging the time of sexual intercourse. If you need to use drugs in sexual life, you should be under the guidance of a doctor.