I haven't had plastic surgery, unless you consider a root canal plastic surgery.
Anyway, a friend of mine had lipo when her kids were 4 and 7, too. We lived in different states, so I never saw her in recovery but she did tell me about. She hid it from her kids. But, they caught her with the bandages on and she had to explain it to them. "We love your body the way it is mommy." She cried when she told me.
Another friend had a boob job. Oh, good Lord.

UNFORTUNATELY, I visited her within 3 months after she had it done. She was one of those that had you "feel her up".

Why do women do that?

Another friend of mine, just lost both of her breasts to breast cancer in the fall of '07. She got reconstructive surgery and new boobs. I get to see her in June '08.
I can understand the need for plastic surgery if you have malformation, accident, burn, ect. But, plastic surgery only makes the outside beautiful, not the inside, you need to love yourself, then you will be happy with your body. That is what we have taught our daughters.