HOWEVER, in teen magazines like Seventeen and Cosmo Girl, "curvy" is used as a synonym for fat, so that fat girls feel better about their figures.
Overweight girls who wear a size 14 in jeans are not curvy, but plain old fat.
Bob: "Actually your prodigious girth renders your curves invisible. I'm into curvy women like Carol"
Alice: "Carol isn't curvy, she's skinny"
Bob: "Alice, you've created a false dichotomy, Carol is curvy AND skinny".