KQs OOP against LAP - Good line?

[Sasnak]

Villain is 29/9/1 over 50+ hands. I've dropped 25BB's missing some draws and getting caught up trying to play against two LAGs whom seem to be hitting anything they CC 2 bets with. It's also around 4am EST and I admit I'm getting tired but the table is spewing chips with Villain chasing gutshots, middle pair w/A kicker etc.

Party Poker 2/4 Hold'em (9 handed) converter

Preflop: Hero is MP3 with K[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls, <font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises</font>, CO calls, Button calls, <font color="#666666">2 folds</font>, UTG+1 calls. <font color="blue">My standard play w/KQs here. </font>

Flop: (9.50 SB) 2[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/spade.gif[/img], T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
UTG+1 checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">CO raises</font>, Button folds, UTG+1 folds, Hero calls. <font color="blue">With 3 others leading is correct. I considered 3 betting but decided to just call and pop him later. </font>

Turn: (6.75 BB) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">CO bets</font>, <font color="#CC3333">Hero raises</font>, CO calls. <font color="blue">FPS period. I felt if I bet I might lose him, so checked hoping he'd bet me on the scare card. Good? Bad? </font>

River: (10.75 BB) A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">CO raises</font>, Hero calls. <font color="blue">Being passive I didn't want this to check through. In the past I've been good at value betting at the wrong time. Only the nut flush had me here, and the reraise from the passive told me he had it. This is a must call in everyone's line isn't it? </font>

Final Pot: 14.75 BB

[MHarris]

I like a 3-bet on this river. I don't think villain's flop/turn action represents a set/FH, and like you said, the only other hand ahead of you is the nut flush. Villain's stats don't indicate that he's super-passive, and I'm thinking he might reraise this river with a worse flush or a hand like AT.

The rest of the hand seems pretty standard to me.