KK vs AA, milkin AA

[bigt2k4]

NL $100 Hero has $120 Villain has $180, sorry I dunno how to work hand converter
villain is TAG and smart player
Hero is button with KK
Villain is MP open raises to $4,
Hero reraises to $12
all fold to villain who raises to $20(95% sure he has AA)
Hero calls
Flop QJ10r
Villain hesitates(99% sure he has AA) then checks
Hero bets $20 Villain calls
turn 9
villain checks Hero????
comments on flop play would also be appreciated