Basic Question, Two Pair Facing River Bet

[Scapegote]

So, I just have kind of a basic question about these types of hands. This is a snap-call on the river right? I mean it seems to be a pretty obvious hit draw. The villian is pretty much an unknown, he literally played 11 hands total at the table before going broke. At what bet size (if any) does this call not become standard (if it is).

Help a NL Newb out, thanks.


Full Tilt Poker, $0.10/$0.25 NL Hold'em Cash Game, 6 Players
LegoPoker Hand History Converter

BTN: $26.90
SB: $24.75
Hero (BB): $71
UTG: $10.90
MP: $24.35
CO: $21.20

Pre-Flop: Q[img]/images/graemlins/club.gif[/img] T[img]/images/graemlins/diamond.gif[/img] dealt to Hero (BB)
2 folds, <font color="red">CO raises to $0.50</font>, BTN folds, SB calls $0.40, Hero calls $0.25

Flop: ($1.50) T[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/diamond.gif[/img] (3 Players)
SB checks, <font color="red">Hero bets $1.50</font>, CO folds, SB calls $1.50

Turn: ($4.50) 2[img]/images/graemlins/heart.gif[/img] (2 Players)
SB checks, <font color="red">Hero bets $4</font>, SB calls $4

River: ($12.50) 9[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">SB bets $6, Hero ?</font>