Ask any gyno or plastic surgeon. It is IMPOSSIBLE to have a non-protruding abdomen like hers after multiple pregnancies. IMPOSSIBLE.
And she's either wearing a major pushup bra or she's had a lift. Multiple pregnancy breasts take a beating.
I'm sorry, but I must disagree with you and your doctors. I bore and nursed two children, each over nine pounds, and gained a great deal of weight with each one. But my stomach is perfectly flat and toned, and my breasts do not sag. South Beach diet, lots of hard outdoor exercise, and a lot of self-discipline, and with luck you may not need a tummy-tuck.
I do notice some small physical differences--my rib cage is a little bigger now. And the kids have certainly given me some gray hairs!