I just find it weird dancing around certain kink and then walk away like if nothing happened. It gives you false hype for something that never suppose to be there in a first place.
You are frequant here on forums I guess, so you might find it weird why I clinge on this so much. But if you would come fresh from the game I assure you, you would be as surprised as me.
It's fine to be surprised it's when someone keeps going on about something that isn't ever going to happen that it gets weird.
It was a throwaway dream scene that has long since been forgot and that was the end of it. Amber hated it, she classed it as a nightmare and has never been mentioned since.
They are never going to do anything, the game is incest free.
There are only 3 love interests and those are Vicky, Nicky and Eve. Amber is not nor will ever be touched by the main character with anything more than a fatherly hug.
That's pretty much all there is to it.
You will probably get to see her fuck a boyfriend if she ever gets one like you can with the sister, there is that to look forward to.