[skedar]

i'd call the turn and raise the river if the board pairs.

if he's a good tag he will know:
with AQ he has you beat on this flop unless you have QQ or JJ. i guess QJ is not a 3bet vs. MP for you?
so why would he not cap the flop, but bet/3bet the river when he turns top two?

it's much more likely that he semibluffs with KT on the flop, turning the straight.