AA

[KNOCKAHOMA]

He could have KJ, but after he limps then cold calls 2 bets makes me think he more likely has AK and he thinks his kicker is good. Even if he has KJ the 5 takes you to the winners circle. I bet/3-bet the turn and probaly the same for the river. I see no reason to back down here I would be suprised to see him show K5 or J5 after calling the pre-flop raise and re-raise even if he is a loose.