KK against passive player..

[sweet wicking action]

Party Poker 2/4 Hold'em (9 handed) converter

MP2 has been playing very loose/passive, something like 40/2/.3, and I've been fairly tight. I'm not sure if he has noticed.

Preflop: Hero is CO with K[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/club.gif[/img].
<font color="#666666">3 folds</font>, MP2 calls, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">3 folds</font>, MP2 calls.

Flop: (5.50 SB) 9[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
MP2 checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">MP2 raises</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#CC3333">MP2 caps</font>, Hero calls.

Given that MP2 has been so passive, I'm worried about a rag two-pair, or small set. i'd love to be against A9, but I really don't see how that could be the case. How is my line on the turn and river?

Turn: (6.75 BB) 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
MP2 checks, <font color="#CC3333">Hero bets</font>, MP2 calls.

River: (8.75 BB) 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
MP2 checks, <font color="#CC3333">Hero bets</font>, MP2 calls.

Final Pot: 10.75 BB