Thats some kind of raise on the flop if she actually is holding KK for the nuts. I would be more inclined to think that the majority of players would smooth call there with an almost unbeatable hand. I think it might be the other two aces, or AK.

Why check the turn if you're planning on coming over the top? I don't think you have enough chips to get any additional value from a check/raise here, because any bet they make will pretty much pot commit them even if they do only have AK.