TPGK facing PS river bet on paired board

[kt421]

Villian is about 32/12 over 20 hands or so. My image is pretty loose/weak, as I've seen more than a few flops, but have folded a couple times to a decent sized bet or raise.

Party Poker No-Limit Hold'em, $ BB :#A500AF(Villian)/ (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

CO ($123.05)
Button ($66)
SB ($138.50)
BB (Villian) ($84.65)
Hero ($93.70)
MP ($31.90)

Preflop: Hero is UTG with K[img]/images/graemlins/club.gif[/img], Q[img]/images/graemlins/spade.gif[/img]. SB posts a blind of $0.50.
<font color="#CC3333">Hero raises to $3</font>, <font color="#666666">4 folds</font>, Villian calls $2.

Flop: ($6.50) Q[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Villian checks, <font color="#CC3333">Hero bets $4</font>, Villian calls $4.

Turn: ($14.50) 5[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Villian checks, <font color="#CC3333">Hero bets $9</font>, Villian calls $9.

River: ($32.50) 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Villian bets $25</font>, Hero ?.

I have a strong feeling he called the flop and turn bets with either a flush draw or the 9. When the 9 hits the river and he bets, my gut is telling me that I'm beat. Should I listen?

[kitaristi0]

Fold.