thanks for all your answer,
There are all very interesting. I still didn't had fold KK before the flop but i 'm still wondering : can i trust my read (specally online...) ??

Today, i had the same situation. But there was no limp reraise since The player with AA was to act before me. I went all-in and think : man, i'm sure he has AA.

end of the story : he shows AA, but i beat him with a lucky flush !!

I'm thinking i might fold my KK in the " limp reraise " case if it happen to me with another tight guy.