Is it possible to widen the hip bones to achieve a more hourglass shape?

I'm a female with an inverted triangle shape and i hate it. I have looked into procerdures for narrowing the shoulders and/or hips, but it seems impossible. So I was wondering, to achieve a more houtglass shape, if it would be possible to widen the hipbones as what often happens during pregnancy? If such a thing is possible, what price range would I be looking at?

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