50NL Set question

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Villain is 25/15 and hasnt gotten out of line yet... tell me how bad i played this hand through the turn and whats my play on the river?

Poker Stars, $0.25/$0.50 NL Hold'em Cash Game, 6 Players
LegoPoker Hand History Converter

MP: $62.35
Hero (CO): $71.10
BTN: $54.20
SB: $65.25
BB: $50
UTG: $60.20

Pre-Flop: 9[img]/images/graemlins/heart.gif[/img] 9[img]/images/graemlins/spade.gif[/img] dealt to Hero (CO)
UTG folds, MP calls $0.50, <font color="red">Hero raises to $2.50</font>, BTN folds, <font color="red">SB raises to $6</font>, 2 folds, Hero calls $3.50

Flop: ($13) K[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/spade.gif[/img] 2[img]/images/graemlins/diamond.gif[/img] (2 Players)
SB checks, Hero checks

Turn: ($13) 9[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">SB bets $9</font>, Hero calls $9

River: ($31) J[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">SB bets $25</font>, Hero ???