I don't believe everything is linked to sex, I believe the fun ends for the majority of people when they both stand naked looking to each other. My point is that it is not viewed as an act as much as the ultimate form of social acceptance. Being socially accepted means you are having a lot of sex and having a lot of sex makes you accepted. I think this is why it is advertised that much it doesn't serve a specific reason anymore,it doesn't have an ecumenical meaning but a conceptual one accustomed to each person. It reminds me those advertisements with all the family smilling because they eat cheese, seems retarded but somehow works.