[Karen Hart]

Many people desire just what you are seeking, feminine hips and butt with little or no breast growth.
There is no solid regimen that I know of, which will do this.
Also, while you can possibly add mass to your butt, you cannot really widen your hips.
Male bone structure cannot be overcome.

I may not have any good news for you. It is easier to grow boobs and butt at the same time.

The best advice that I can give you is to use Maca and Glute Boost.

Maca may put fat all over your body, not just where you want it. I used it for a while and it gave me a thick pad of fat over my pubic area. 
That was not a good thing, but, I have heard that this naturally happens to older males, so maybe age was a bigger factor than Maca.
I have heard very mixed reviews on Maca, so don't count on it. I'm not sure that it deserves it's reputation.

Glute Boost, which actually works on boobs too, does work. Volufiline is the active ingredient. 
It plumps the fat cells that you already have, so if you don't have any, it may not work so well.
It could take a lot of tubes, and months, to get any results. Kind of an expensive project but perhaps it is worth it to you.

There are many such products available. 

https://www.gluteboost.com/collections/shop-all

https://www.amazon.com/volufiline/s?k=volufiline

Karen