when i first saw this i thought how daft.
but thinking about it.,....your feet are all bone aren't they, so it makes sense that if they are large the rest of your bone structure would be large.
I mean you dont get many 6footers with size 2 feet, nor do you get any petite women with size 8's.
though i suspect it only means the size of your pevis rather than fanjo.
doesn't it? [worried lady with size 9 feet here]