It is my experience that women of Northern European descent have wider vaginas than women of other ethnicities.

I mean, don't get me wrong, I can't speak on an individual level about every woman of Northern European ancestry, but I have traveled quite a lot in my life and found that women of Northern European descent tend to have looser vaginas. Don't ask me how, but I've been with women of every possible ethnicity and, at least in my experience, women with Northern European features tend to be the loosest down there.