haha i went from a c to barely a b..they are fat so when you lose fat, you loose breast fat too! unless you are HUGE to begin with (breast size I mean) if you loose a little it should matter.
since I have lost my weight, the are not as round, and they do hang a bit. but i have heard about working out the pec muscles to help pull everything up. I'm working on it for a few weeks and I haven't seen a change..lol