The Life Styles Condoms study that I previously referenced was conducted by medical professionals and included two separate measurements of each of the 301 penises studied. Their findings were:
Average erect penis length measured 5.877 inches
Average erect penis girth measured 4.972 inches
A similar clinical study performed by a Brazilian urologist on 150 men found:
An average erect penis length of 5.7 inches and
An average erect penis girth of 4.7 inches
So those numbers are probably a pretty good starting point for "average."
... How common is 6 inch girth in real life? ... it doesnt seem so rare when you hear people speak about girth preferences.
I think the lack of rarity in that respect is simply due to the fact that the vast majority of men (and women) quote sizes that are simply exaggerated. Many of them do so in the honest belief that their numbers are accurate but have simply lost sight of what a real inch is. The only way my own erection can even approach an honest 8 inch measurement is bone-pressed, yet I have had countless guys, and a few gals, on their first introduction to my rigid member swear that it has to be at least ten inches in length. For many it is simply an honest misperception of size when it comes to male genitalia.
... I was hoping a swinger or a gay guy WITH 6 inch girth so that he knows what it looks like, could compare what he has experienced in the real world.
My own girth is only over 6 at the thickest part of my shaft (the base) and more like 5.75 at mid shaft. The first photo attached hereto is completely honest with no shenanigans going on with the tape on the underside of my cock.
I do have considerable experience with cocks of all sizes in "the real world" and can offer the follwing comments on the remainder of my attached pics:
The second pic (RealWorld1) is from one of my first ever group experiences and the cock at the top of the picture is that of a good friend of mine who is generally considered to be "hung" (approximately 7x5), while the semi-erect cock underneath mine is definitely of greater than average girth though only slightly longer than average.
The third pic (RealWorld2) features a friend from up north who is also hung better than average a little over 5 inches in girth.
The fourth pic (RealWorld3) is of a good friend in Denver whose dick is right at the statistical average in size ... but very tasty, I can attest.
The final pic (RealWorld4) is my cock over one of average length but less than average girth, about 4 inches. It too was quite tasty!