Is being curvy defined by weight or bone structure?

I read a Mytake the other day that got me thinking. He posted pictures of curvy girls he thought were attractive. Some were fit. Others were plus size.

It made me wonder if it’s defined by bone structure and has nothing to do with weight. Whenever I hear a girl say another girl is curvy, the curvy girl is usually overweight. It’s usually used as a defense against being called overweight, or that’s how I see it used.

But I take the term literally. I thought it meant the woman was in shape with an hour glass figure. But then I saw both and got me thinking maybe the term has nothing to do with weight but bone structure. Curvy women can also be overweight.

Below are the two examples of curvy with weight differences. Kim is in shape but still has her curves. Most of her weight is in the lower parts of her body while she’s thin in the stomach, arms and face. The other girl is curvy but not thin, having some weight in her arms, face and stomach area.

I’m thinking it’s bone structure. How do you guys define “curvy figure”?
Is being curvy defined by weight or bone structure?
Is being curvy defined by weight or bone structure?
Is being curvy defined by weight or bone structure?
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