Many organizations leap into a knowledge management solution (e.g. document management, data mining, blogging, and community forums) without first considering the purpose or objectives they wish to fulfill or how the organization will adopt and follow best practices for managing its knowledge assets long term.
The study found a variety of results, with one couple lasting a little over 30 seconds and another lasting well over 40 minutes. The median average of time sexual intercourse lasted, however, was 5.4 minutes, according to the study. The average time for sex was also dependent on age, with younger men lasting 6.5 minutes, and the 51-year-old and up crowd coming in at 4.3 minutes.
the best answer i can give you is that good sex lasts for however long the people who are doing it want it to last for if you only have time for a quickie then three minute sex is perfect if you re on vacation and you ve got nothing but time spending all night having different kinds of sex may be what s idealnswer so for starters we need to distinguish between the question how long does sex usually last for and how long should it last for the first question might be answerable by turning to research