This question might sound silly but no one has given me a serious answer where I asked that so I wonder if someone here has seen the same "change" of morphology as I did.

When I'm standing, I have a well defined waist and some hips, when I'm sitting my belly seems bigger which I always found normal but when I'm lying down I look like a boy, with no waist and hips (and the bones are pretty visible).

So, does that happens to someone else ?

Thanks for the answers ^^