As a guy, yes I do wonder sometimes how I "measure up," and I know at right about six inches I'm pretty average, but from my experience no woman I've been with have found me wanting. I'm not trying to float my own boat, but I've never had any complaints in the size department. They've all seemed to absolutely enjoy sex. In fact, the girl I've been seeing lately has repeatedly told me I'm the best she ever had. She also told me she had an ex that had TOO big of a penis, that they tried but it hurt way too much. so there is a win for the "average" man!
Remember it's not always the size of the boat, but the motion of the ocean...but you still don't want to throw a hot dog down a hallway...