At your age indeed a bone change would be surprising. However I don't know, maybe the way those same bones are arranged, with ligaments and whatnot, can be changed. For example the hips wouldn't widen, but the femur would attach to the hipbone a bit less towards the center.
What I do know is that I did have some pelvic enlargement, and that I'm happy of it. It's even one of the only things I've had from E so far. My dose is so low fat redistribution doesn't even seem to be kicking in, and the slightly softened man's chest I have can't seriously be called breasts. At my mother's, I put on a bit of weight, and it was obvious that it went into the belly. Not to mention that even at 165 cm and ~135 lbs, which is definitely not supposed to be so fat, I still have a problematic belly. So yeah, happy my hips changed.
(And sorry for the awkward off-topic stuff. Anyway, yeah, whatever the cause, it's good that your hips have changed.)
I wish I could stretch that area more easily. It tends to get stiff and then my hips can't move much and walking feels a bit weird. But it sure is a hard place to stretch.
