Nl100 KK how do i get the most value?

[2weak]

Poker Stars - No Limit Hold'em Cash Game - $0.50/$1 Blinds - 6 Players - (LegoPoker HH Converter)

SB: $181.00
BB: $70.60
UTG: $62.00
<font color="black">Hero (MP): $105.35</font>
CO: $141.45
BTN: $105.85

<font color="black">Reads: </font><font color="blue">villain is 36/7.5/6 over 134 hands</font>

<font color="black">Preflop:</font> Hero is dealt K[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/heart.gif[/img] (6 Players)
UTG folds, <font color="red">Hero raises to $4.00</font>, CO calls $4.00, BTN calls $4.00, 2 folds

<font color="black">Flop:</font> ($13.50) 6[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/club.gif[/img] 8[img]/images/graemlins/heart.gif[/img] (3 Players)
<font color="red">Hero bets $8.00</font>, CO calls $8.00, BTN folds

<font color="black">Turn:</font> ($29.50) 6[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets $17.00</font>, CO calls $17.00

<font color="black">River:</font> ($63.50) 4[img]/images/graemlins/spade.gif[/img] (2 Players)


should i check here to induce a bluff or bet?