OrmIrian
I genuinely think some people carry weight better than others. For instance mine is very evenly spread. In some ways this is good but the problem with carrying your weight evenly is that it is difficult to use clothes size to judge your weight gain.
Some of my friends know if they have put on weight very quickly as a lot goes on their tummy or their legs first so clothes get tighter quicker. Uusally a weight gain of 10lbs to 1 stone makes their clothes feel a bit tighter. By the time my clothes get tight I have usually put on 2 stone or more.
Another factor is frame size. My wrist size is 71/2 to 8 inches around the bone (no fat there). This is a medium size even for a man so for a woman I definitely have a large frame.
Also muscle is heavier than fat so the fitter you are the more you can weigh while still being toned and slim looking - can't say I fit in this last category though