The most ideal duration of sexual intercourse is 7-13 minutes, according to researchers at Biland College in Pennsylvania, US.
Fox News in the United States reported that this is the first large-scale study on the duration of sexual intercourse. Researchers surveyed thousands of people randomly in the United States and Australia and found that actual intercourse (counting from the start of genital contact) is most suitable within 7-13 minutes. Most respondents, especially men, said that when actual intercourse lasts more than 13 minutes, the feeling of fatigue increases and it's harder to recover; while less than 7 minutes causes a feeling of not being fully satisfied...