Flop flush, turn pairs board

[pureklas]

Villain is 34/16/2 over 139 hands. So I assume he is limping a wide range. Should I check this turn for pot control or bet/get it in?

Blinds: $2./$4.
5 players
Converter

Stack sizes:
UTG: $437.50
CO: $300.90
Hero: $398
SB: $396
BB: $300.55

Pre-flop: (5 players) Hero is Button with 6[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/heart.gif[/img]
UTG folds, CO calls, <font color="#cc0000">Hero raises to $20</font>, SB calls, BB calls, CO calls.

Flop: Q[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/heart.gif[/img] ($80, 4 players)
SB checks, BB checks, CO checks, <font color="#cc0000">Hero bets $66</font>, 2 folds, CO calls.

Turn: K[img]/images/graemlins/spade.gif[/img] ($212, 2 players)
CO checks, <font color="#cc0000">Hero bets ???