Another Halloween Suggestion Post (Patreon)

So, this two!

They have a thing ongoing lately, were they wear opposite costumes each Halloween.
(angel-devil and sub/domme on the last 2)

The question is...
what should they wear for this Halloween?

Rules:
- Only one suggestion per each
- They have to complement each other
- no copyrighted characters
- The girl with white/blue hair won't wear anything that isn't sexy :3