do you have Rayne by Capsces?  she has some waist morphs that will do exactly what you want, too.  i like hers because they have separate x, y an z component, iirc.

the example given definitely something that would require a corset and someone with a "trained" waist.  so you'd need the right clothes too. i'd probably suggest just getting that corset, if you can.  and for V4, the Roxana Yaroslavna one.