Ravageur, against some opponents in some situations you get more value out of checking the flop instead of c-betting when you RR preflop - and this applies both to QQ and AA on a K-high flop under the right circumstances.
I agree though that in this specific hand I probably need to c-bet this flop because it makes my hand a lot easier to play and because else my hand is really transparent against a solid hand reader who can put me on JJ/QQ.