Backing up some of the points made by E.
I am asexual. I can look at male and female bodies and appreciate their beauty. I went through the phase that most teenagers do, when the ugly bits demanded attention. But the obscession that some seem to have, for repeated sexual relief has always been alien to me.
On the first video, on the link, the interviewer after being told by the guy, that he has no desire for sex, asks if he is gay. That about sums it up really. I always avoided saying I was gay, simply because of the attitude that gay people are promiscuious and any gay will do. For the interviewer and my own experience backs this up, gay is a dismissal for anything that is different.
On the sexuality forum, I asked if anyone has ever expereinced a high after climaxing. I asked this because I understand that most do. I don't. Generally it's just a disappointment. When I was younger, the disappointment was usually depressing. Later, once I'd accepted that the high isn't going to happen, it became a relief that I'd managed it. Rather like carrying a really heavy box, to the top of the stairs and finally putting it down.
In the second video, the same guy is surrounded by three rather terrifying women. One asks, if it isn't a problem, why organise? The answer would seem obvious, so that people, especially young people, don't feel like freaks because they don't have the same obscessions as others.