easyJet also allow obese pax to purchase more than 1 seat if they are too wide for 1 seat. I had an obese man and woman on recently (the woman was I believe the term would be morbidly obese) and she took up virtually the whole of the 2 seats she had purchased.
They were pre-boarded so that they could easily get a row for themselves and were very greatful with the way that we looked after them.
Unfortunately though they didn't do themselves any health favours because when we brought the trolley through the cabin, they both had a chocolate muffin with their hot drinks and had 4 sugars each in their hot drinks.
Still, they were very nice and polite, much nicer than some of the other pax on that flight!
