Fuck men sometimes make me want to be a bitter old spinster dyke!!! Does sex with a dick feel THAT fantastic that they just can not resist it???
JABL, in my opinion it really comes down to character, integrity and biology. We know that testosterone is the hormone that creates sex drive in men and women. The average man has somewhere between 20 to 70 times higher levels of testosterone than the average woman,
http://www.abc.net.au/science/slab/testost/story.htm, some studies suggest it may be closer to 400 times as high.
Thus by nature's (or a higher power, if you are so inclined) design, on average men have a MUCH MUCH MUCH higher need, desire, craving for sex and risky behavior than the average woman. I don't think that many women really and truly understand this huge difference between the sexes. I once heard a comedian put it best, he said "all the ladies in the audience, close your eyes and think back to the moment in your life when you were most sexually aroused, just out of your mind with passion and pure carnal lust, capture that moment in your head....understand that is how the average man is when he is NOT EVEN THINKING about sex.
Now this is where character and integrity come in, in order to keep such high levels of testosterone in check, a man has to wage a constant battle to keep his thinking done in the brain and not the crotch. The average man gets between 3 to 5 erections IN HIS SLEEP, he does not even have to be fantasizing about sex,
http://www.pamf.org/health/healthinfo/index.cfm?A=C&hwid=hw231151, that is how powerful testosterone is in the male body.
This is why I feel very strongly that it is much easier for a man (father, grandfather, family member, family friend) to relate to and guide a young man going through puberty and help him understand how to deal with all the hormones, and build character, integrity and understanding of how to deal with it, channel that energy to a more positive outlet, and conduct himself as a gentlemen when interacting with women.
Anyway, long winded explanation that it is not just as simple as sex with a penis feeling so good that men just can't help themselves. Hope this helped.