KK in SB - Line check

[Hattifnatt]

Villian in this hand is pretty loose-passive with a preflopraise of 9% and have seen 40% of the flops after about 50 hands.

Its my 2nd orbit for the session so I dont have much of an image yet.

I just want to check my line. Comments on all streets are appreciated.

Party Poker No-Limit Hold'em, 4$ BB (6 max, 6 handed)

CO ($271.90)
Button ($678.42)
Hero ($392)
BB ($400)
UTG ($408)
MP ($307.05)

Preflop: Hero is SB with K[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/spade.gif[/img]. Hero posts a blind of $2.
<font color="#666666">1 fold</font>, MP calls $4, <font color="#CC3333">CO raises to $15</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero (poster) raises to $38</font>, <font color="#666666">1 fold</font>, MP folds, CO calls $25.

Flop: ($88) Q[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $35</font>, CO calls $35.

Turn: ($158) 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">CO bets $60</font>, Hero calls $60.

River: ($278) 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero bets $150, <font color="#CC3333">CO calls all-in ($137)</font>.