FTP 15k 50+5 AK NFD w/ TPTK

[Bakedd]

What is my turn play here? What is he limping with in LP and then smoothcalling my preflop bet? If he does have a 9 here and I bet, he will raise me, and I have to call with 9 outs. If I check raise, he will only call with a 9 that beats me, and I think check raising is bad here. How weak is check calling here?

Full Tilt Poker, NL Hold'em Tournament, 15/30 Blinds, 9 Players
LegoPoker Hand History Converter

Hero (SB): 1,835
BB: 2,110
UTG: 1,685
UTG+1: 2,175
UTG+2: 1,960
MP1: 5,770
MP2: 1,510
CO: 3,460
BTN: 2,675

Pre-Flop: (45) K[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/club.gif[/img] dealt to Hero (SB)
4 folds, MP2 calls 30, 2 folds, <font color="red">Hero raises to 120</font>, BB folds, MP2 calls 90

Flop: (270) 9[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">Hero bets 150</font>, MP2 calls 150

Turn: (570) A[img]/images/graemlins/diamond.gif[/img] (2 Players)
Hero??