except it's not really sagging, the breasts are still really firm generally, but the skin is wrinkled, although wrinkle is not the right word, folded? For instance, look at Devon Deray (who has freakish breasts, imho) or Fantasia, or just about anybody who's had breast implants in for a while. While natural skin sagging is generally okay, on implants it looks really weird, like they are big sandwich bags filled with water or something, which is I guess what they are ....