Please.
PLEASE tell me there's a way to turn Alicia into your bitch.
I'm begging you.
Also I heard you could increase Aura's breast size. Do you need to be corrupted and turned into a whore for that or you can still be "clean"?
Anything along the lines of Aura turning her corruption around and using it on others sounds like a post v 1.0 release thing, so... really far out. You can't actually increase her bust size, but there are two scenes with a formula peddler which does pretty much achieve the same result.
He has made a living doll that has Aura's likeness, except it has a bigger bust. You won't need to have done any of the mental changes to access those scenes, but aura will need some lewdness to start the scenes. Eventually there will also be art for scenes where an artist paints several portraits of Aura with exaggerated body proportions, but that is a really priority scene apparently, so it is also likely be after v1.0. I doubt there will be any major (permanent) body alterations to the Roya version of Aura outside of eventual endings as they would lead to a bunch of possible inconsistencies in the CGs.