NL50: AKs flop flush draw, blank turn, fire 2nd barrel?

[barryc83]

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) internettexasholdem.com (http://www.internettexasholdem.com)

BB ($50)
UTG ($13.45)
Hero ($64.40)
CO ($177.45)
Button ($50)
SB ($57.60)

Preflop: Hero is MP with K/images/graemlins/spade.gif, A/images/graemlins/spade.gif. CO posts a blind of $0.75.
UTG calls $0.50, <font color="#CC3333">Hero raises to $3.5</font>, CO (poster) calls $3, <font color="#666666">3 folds</font>, UTG folds.

Flop: ($8.50) T/images/graemlins/spade.gif, 9/images/graemlins/diamond.gif, 6/images/graemlins/spade.gif <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $6</font>, CO calls $6.

Turn: ($20.50) 6/images/graemlins/diamond.gif <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">CO bets $7</font>, Hero calls $7.

River: ($34.50) 2/images/graemlins/club.gif <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">CO bets $20</font>, Hero folds.

Final Pot: $54.50
<font color="#009B00">Main Pot: $34.50, won by CO.</font>
<font color="#009B00">Pot 2: $20, returned to CO.</font>

Since I'm OOP is this the right line? I c-bet like 80-85% of the time and close to 100% heads up. People have started to play back at me a little, so I'm wondering if I should fire this turn b/c I don't think he's letting go of even top pair here. Also, him c/ring AI on turn would suck.

[crookdimwit]

PF and flop seem fine to me. You have the nut flush draw, two overcards, and a backdoor straight draw, so this is barely a c-bet IMO... You've got a lot of possibilies here.

Turn? Villain makes a 1/3-pot sized bet, which seems to suggest to me he wants a call. OTOH, he might just be taking a stab since you checked the turn. My guess is that he's holding a six, top pair, or 2 pair and is hoping to see a blank on the river. He's offering you 4:1 odds, though. You're got about a 20% chance of hitting a spade on the river. You've got some implied odds here, but I think they're diminished by the chance that you might also be up against a boat if/when you hit your flush. 9s might bad news if villain has a 6 or a 9 in his hand, so that's one less out you can bank on...

River: Check fold is fine... I don't think I want to lose any more money with Ace-high here...