The male obsession with penis size is completely out of proportion with female interest in the subject. I've been a member of this and other sex forum sites for many years and daily I receive a message from a man on the order of "My God man, you're huge! How big is your cock?" And in all these years I have never once gotten a similar inquiry from a woman.
In all the relationships I have had with women, when asked what they like about me, my penis size has never ever been in the qualities they list. It's usually "He's really smart.", "He makes me laugh.", or "He's very creative and artistic." When asked about physical qualities, they say things like "He's handsome." or "He has a killer bod." Even when pressed for very intimate details, they blush and say "He's a great lover." or possibly even something as specific as "He has a beautiful cock." Never once has a woman said that one of the things she likes about me is that I have a large penis.
So why are men so obsessed with the subject? If penis size is of minor interest to women, why do men put so much emphasis on it? By focusing so much on this one attribute, it seems to me that most men are missing the boat when it comes to having fulfilling relationships with women. Instead of wondering "Am I big enough.", they should work on being kind and loving, engaging her intellect and wit and sense of humor, being adventurous and fun-loving, and and making her feel carefree, happy and secure. If a man does all of those things, he will probably be a wonderful lover as well and find that penis size is immaterial.