Hip dips

Hey y’all so I’ve been having some issues. During my teen years i noticed as i grew and gained weight my hips did not fill in at all. My waist is relatively decent and my thighs could crush metal but the area between right on the bony muscled part of my outer hip no fat or muscle seems to fill in the gaps, I’ve been doing a lot of exercises to fill in the area but it’s not working any advice?