It's complicated. The short answer is, "more or less". Demons essentially come into existence fully mature, 'formed' from the abyssal maws or the power of stronger demons. I'm of the second category.

On top of that, I have natural shapeshifting - so I take a default form that is basically my 'identity', and my subconscious optimizes that for sensuality value. I could take any form I want, but I default to this. Even that identity, though, is at least partially designed from my Queen's will, so...

Yeah. It's weird.