There's this contingency of fans out there who think that if a model's breasts have gotten bigger later in life, that she absolutely must have gotten implant surgery, as if there's no other possible explanation.
Actually, there are many possible explanations -- aging, hormone changes, weight gain, time of the month, pregnancy, etc. can all contribute to this. If you don't believe me, here's a comparison photo composite that we created a while ago featuring entirely natural models, all of whom we know personally and have photographed over the years (with the exception of Joyce Gibson) and all of whom we absolutely, positively know for certain are all-natural.
This is for those of you who think a woman's breasts can't get larger without surgery: