AKo, 3-handed w/ 4-flush on board. value bet?

[elitegimp]

Subject says it all -- should I have made that river bet? What would be the plan if it's raised? This was my 7th hand at the table, so no specific reads. The hands I had seen seemed to point to the table as a whole being very loose and very passive.

To answer my own questions, I felt like this was a clear value bet (and may get some low hearts to fold). It's a scary board, so a raise may indicate a bluff but would probably be Kh, Jh, or Th. So I'm torn between getting 12 or 13:1 on the call and not knowing these players well enough to know if I'm good often enough.

Party Poker 0.5/1 Hold'em (8 handed) converter

Preflop: Hero is SB with K[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/club.gif[/img].
UTG calls, UTG+1 calls, MP2 folds, CO calls, Button folds, <font color="#CC3333">Hero raises</font>, BB folds, UTG calls, UTG+1 calls, CO calls.

Flop: (9 SB) A[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets</font>, UTG calls, UTG+1 calls, CO folds.

Turn: (6 BB) 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, UTG calls, UTG+1 calls.

River: (9 BB) 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
Hero ...

[topspin]

With no reads, I'd bet and fold to a raise.

[DMBFan23]

I would bet and fold to a raise, but I wouldnt expect to be called by too many worse hands - I'd want folds. do you think you'll be good over half the time that you're called?

[Gravy (Gravy Smoothie)]

The bet on the river is not a value bet so much as an attempt to fold out singleton low hearts.