[100NL] AK, TPTK vs turn and river bets

[Mhaz]

Villain: 25/11/2.5 over 70 hands.

Poker Stars, $0.50/$1 NL Hold'em Cash Game, 6 Players
LeggoPoker.com - Hand History Converter

SB: $112.50
BB: $137.85
UTG: $106.40
Hero (MP): $115.65
CO: $244.30
BTN: $94.50

Pre-Flop: A[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/heart.gif[/img] dealt to Hero (MP)
UTG folds, <font color="red">Hero raises to $4</font>, 2 folds, SB calls $3.50, BB folds

Flop: ($9) K[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/club.gif[/img] 8[img]/images/graemlins/spade.gif[/img] (2 Players)
SB checks, <font color="red">Hero bets $6</font>, SB calls $6

Turn: ($21) 3[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">SB bets $12</font>, Hero calls $12

River: ($45) 8[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">SB bets $30</font>, Hero calls $30

Okay as played? Should I be raising this turn?