Honestly, you're correct that our country is too fat. When you can double the size of your meal at any Burger King for a few cents more, and KFC has a soft drink container that looks like a bucket, there's a problem on the other side of the bell curve.
My wife is a size 10, watches what she eats (but enjoys cheeseburgers) and also exercises reqularly. She's in a stressful job (RN on a night shift), so her hours are sporadic and that takes a toll on her body.
If Kim is pregnant now, as she may well be, that could pose a problem.
BTW, an attractive full-figured woman would be Nigella Lawson, the British host of "Nigella Bites" on the Style Network. She's a little old for me (she's 45; I'm 36 on June 2), but Nigella looks like Kim's older British sister.
Mike