The natural look is fine.
It's possible that she's just playing with you, but I doubt it. BUT... if you do something to screw things up, she will backtrack instantly and say that she was just making it all up.
Here's what I really think is the situation. She is understandably concerned that you might change your mind later, after she has already done it, and then she is screwed (pardon the expression). So she has decided to put the possibility into your mind that perhaps she has already done it, and see how you react.
That's probably a good idea for her right now. She wants to make sure you don't freak out over it. Lots of guys do, to the long term detriment of the relationship.
Oh, and if she goes ahead and then you DO have a melt-down? She is prepared to backtrack and say it never happened, that she made it up. So by all means, let her go ahead, but make darned sure you don't have one of those "Oh my God, what have I done" moments. Because if you do, she will probably never do it again during your marriage.
If you reach the point that you feel that way, in that moment of angst.... Just keep it to yourself until the feeling goes away. Okay? It will eventually, and you'll be glad that you didn't give up all hope of future cucking.
xoxoxo and good luck!
Christine (a sissy m, not born female)