I have had experiences somewhat similar to rockwell. Currently, I am about 5.5" circumference at the glans, 5.75" midshaft, and about 6.25" at the base. My wife has no problem with vaginal intercourse, but I do get scraped some with oral sex.
I have gained about .25" girth through PE, or a little more. When I was younger and a bit smaller, I had a number of partners who would complain of jaw fatigue with attempts at fellatio, and a couple who at least occasionally became pretty sore after vigorous vaginal intercourse, and would need to take a few days off. I only attempted anal sex once, with a gal who suggested it, and we gave up after half an hour. I have not, however, not been able to penetrate a woman vaginally due to girth, although a few felt pretty tight (one somewhat uncomfortably so).
There is no doubt that women vary in vaginal capacity, and guys of the same size may have had very different experiences as a result of having different partners. But I would be cautious about believing that guys with a girth much over 6" will have "no problems" with women.
I have gained about .25" girth through PE, or a little more. When I was younger and a bit smaller, I had a number of partners who would complain of jaw fatigue with attempts at fellatio, and a couple who at least occasionally became pretty sore after vigorous vaginal intercourse, and would need to take a few days off. I only attempted anal sex once, with a gal who suggested it, and we gave up after half an hour. I have not, however, not been able to penetrate a woman vaginally due to girth, although a few felt pretty tight (one somewhat uncomfortably so).
There is no doubt that women vary in vaginal capacity, and guys of the same size may have had very different experiences as a result of having different partners. But I would be cautious about believing that guys with a girth much over 6" will have "no problems" with women.

