I'm either a 7 or an 8, trending toward an 8, since stairs have to be done carefully and have hand rails. My 50+ inch belly remains solidly distended even when empty.
Getting from 23 to over 24 stone (322 to 340lbs) in recent months has definitely pushed me towards a 7. Walking into a room I always have to look for chairs without arms because of the size of my arse in particular
I do not but I am 5" 11 and weigh 300 lbs. I feel like a 3/4. My belly does not hang that much over but its getting to the tipping point. And now I am getting winded going up stairs