NL100: Rivered straight, I raise, villain 3bets AI

[kewl_cph]

Villian is 36/17/1.1 over ~120 hands

No real reads other than that he has made some loose flop calls.

I figured raising the river is the default play but the river 3-bet made me want to puke.

I only have the 3rd nuts, so do I call?


Poker Room skin
No Limit Holdem Ring game
Blinds: $0.50/$1
4 players
Converter

Stack sizes:
UTG: $58.00
Hero: $108.95
SB: $11.00
BB: $102.10

Pre-flop: (4 players) Hero is Button with 6[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/spade.gif[/img]
UTG folds, <font color="#cc0000">Hero raises to $3.5</font>, SB folds, BB calls.

Flop: 9[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/club.gif[/img] ($7.5, 2 players)
BB checks, <font color="#cc0000">Hero bets $5.5</font>, BB calls.

Turn: 2[img]/images/graemlins/club.gif[/img] ($18.5, 2 players)
BB checks, Hero checks.

River: T[img]/images/graemlins/spade.gif[/img] ($18.5, 2 players)
<font color="#cc0000">BB bets $4</font>, <font color="#cc0000">Hero raises to $20</font>, <font color="#cc0000">BB raises all-in $89.1</font>, Hero ?