re: Poker & Playing KK in a weird situation cash game ..
I agree with storms, limpreraising is just a sign of fancy play syndrome. Just skip it, there´s no way you´re getting a more positive EV playing it this way rather than simply straightforward.
Also, probably no need to overbet the flop, just bet something normal like 3/4 pot and put him on a tough decision. There is a chance he might try something with a hand like AK, give him the opportunity. Betting ~pot isn´t slowplaying. If he comes over the top, you have an easy call. If he calls, you push in fourth street no matter what comes (though if an ace comes you might want to check and call a river bet).