You know what's sexy? A confident woman.
The Romans had it right, and you'll notice that Venus wasn't a 2x4. Women with curves are sexy, and women confident in their bodies is crazy hot. The exception to that is the type of woman that you see that lacks self-awareness and wears things that are "way too small" (which is sadly common) and doesn't respect her shape. That said, the previous applies to men too. I don't know when this Calvin Klein emaciated, androgynous, rail-thin look became a thing (80's maybe, with all that coke?) but it's not attractive, and it should never ben.
Be you, flaunt those curves, and be beautiful as God made you! And those who can't understand beauty, well, frankly you don't need them in your life anyway because they're probably too insecure about themselves, and you're right - they'll try to control you.
Best!