100NL, playing AK OOP

[Pacuno]

Villian is 19.8/16.7/2.5
I've no specific reads on him but he seems to be solid. I usually reraise this pf but because I've some troubles playing AK OOP I took the more passive line this time. What do you think of the way I played this?

Poker Stars - No Limit Hold'em Cash Game - $0.50/$1 Blinds - 5 Players - (LegoPoker HH Converter)

SB: $52.30
<font color="black">Hero (BB): $212.25</font>
UTG: $98.50
CO: $101.50
BTN: $314.05

<font color="black">Preflop:</font> Hero is dealt K[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/spade.gif[/img] (5 Players)
UTG folds, <font color="red">CO raises to $4.00</font>, BTN calls $4.00, SB folds, Hero calls $3.00

<font color="black">Flop:</font> ($12.50) A[img]/images/graemlins/heart.gif[/img] 9[img]/images/graemlins/spade.gif[/img] 5[img]/images/graemlins/diamond.gif[/img] (3 Players)
Hero checks, <font color="red">CO bets $8.00</font>, BTN folds, <font color="red">Hero raises to $25.00</font>, CO calls $17.00

<font color="black">Turn:</font> ($62.50) J[img]/images/graemlins/club.gif[/img] (2 Players)
Hero checks, CO checks

<font color="black">River:</font> ($62.50) 3[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">Hero bets $36.00</font>, CO calls $36.00

Pot Size: $134.50