“I am a Mix of an Elf and an Aero- probably the only one that ever existed since elves have gone extinct in our world. You can see it on the ears and my ability to shapeshit- but only slightly. If I do it too long I can end up in immense pain… so.. well, I’d rather not.
Maybe Rose Quartz shapeshited her form to make her self shorter so she doesn't identify as a diamond?
We’ve literally had two entire episodes dedicated to the dangers of long-term shape shifting- be it in Steven’s case where he tried to make himself taller and exhausted himself to infancy, or Amethyst reforming herself outside of her frame