you'll most likely have loose skin. But I think I can speak for the majority of us when I say that looking back, we probably shouldn't have wasted a lot of brain cells worrying about the loose skin. Most of us would take the loose skin ANY DAY over being 100 - or 200 - or whatever pounds overweight. The loose skin is a pretty minor issue when you look at the big picture. Plus for most of us, it's pretty easy to hide in clothes. And if it REALLY bothers you, plastic surgery will take care of it. So I know it's hard to believe now, but the loose skin should NOT be your biggest fear. Being 100+ lbs overweight should be.
here I am, after my initial loss of 235 lbs (I've since gained 12 lbs), with tons of loose skin. See it? Doesn't it look awful?