2pair up against a possible rivered straight

[squidladder]

Villain is unknown
Is this an easy fold?

Party Poker
No Limit Holdem Ring game
Blinds: $0.50/$1
6 players
Converter

Pre-flop: (6 players) Hero is Button with K[img]/images/graemlins/heart.gif[/img] T[img]/images/graemlins/heart.gif[/img]
UTG folds, UTG+1 calls, CO folds, <font color="#cc0000">Hero raises to $5</font>, SB folds, BB calls, UTG+1 folds.

Flop: K[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/heart.gif[/img] ($11.5, 2 players)
BB checks, <font color="#cc0000">Hero bets $9</font>, BB calls.

Turn: 3[img]/images/graemlins/diamond.gif[/img] ($29.5, 2 players)
BB checks, <font color="#cc0000">Hero bets $15</font>, BB calls.

River: A[img]/images/graemlins/diamond.gif[/img] ($59.5, 2 players)
<font color="#cc0000">BB bets $52</font>,

[skaffaNL]

I muck this one, would bet more on the turn.

[Choparno]

Yes, easy fold. As well as the possible straight you're still losing to KJ (less likely) or AJ, which is possible. Even a passively played AK.

What's the thinking behind your half-pot bet on the turn? I typically bet 2/3 or so here if I think I can make them fold, otherwise check since your hand still has plenty of showdown strength. You can pick off a river bluff or still get value out of top pair or a completed flush on the river. I wouldn't be particularly concerned by QT getting a free card.