I don't usually see ppl do this w/ QQ. Much more likely either KK or AA, and you have the KK, so he's probably got the AA. Personally I don't have a problem laying it down w/ no particular reads. I personally like to wait until he has KK and I have the AA and he can't make the laydown. I've lost to many a stack w/ KK vs. someone's AA. But again, it's very dependent.