Guess I'm the only one man enough to answer :tongue:
I personally believe, in a sexual way, size doesn't necessarily matter. It also depends on the size of your partner for instance. Of course either extreme is a bad thing (Though few guys will admit it, if they get the larger end). There are other ways to make your partner happy then just length.
But, from a masculine point of view, a lot of guys subconciously view their penises as direct extensions of their masculinity, and having a small one would make them less of a man. I don't think that's true, but there are many people that do.
So neh, I'm the first guy to give a straight answer :tongue:
P.S- All of the above thought may be due to my own bias, because of my own size :tongue:
Edit- To fix the darn smilies