Cumalot:
I'm not sure how old you are...but in my experiences (I'm 36) I've slept with, well, a lot of women. A lot.
Some may disagree on this site...but the size issue is more of an issue to the male in most instances. It makes for some excitement the first time or two with some girls (maybe 15%) but after that it really doesn't mean a whole lot.
If you're into one night stands and cheerleaders, you'll get some use out of a big cock for a few nights. In most relationships, it doesn't mean much.
The 'honeymoon' period wears off quickly in almost all relationships. You'll find some size queens on this site, but in the real world, they are few and far between.
Some huge hung guy will come on this thread and dispute me, but I doubt there are many on this site that have slept with more women. I'm not being pretentious or boastful, but that's the truth.
Anyway, worry about more pressing things. Women are way more self conscious about how you think they look....your penis size is about 20th on their priority list.