NL4: AKo River???

[Kevan0]

Villian: 52/20/1 over 46 hands..

How do you play this river..

Party Poker
No Limit Holdem Ring game
Blinds: $0.02/$0.04
8 players
Converter

Pre-flop: (8 players) Hero is CO with K[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/club.gif[/img]
UTG folds, UTG+1 calls, MP1 folds, MP2 calls, <font color="#cc0000">Hero raises to $0.24</font>, Button calls, 4 folds.

Flop: 5[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/diamond.gif[/img] ($0.62, 2 players)
<font color="#cc0000">Hero bets $0.45</font>, Button calls.

Turn: 7[img]/images/graemlins/club.gif[/img] ($1.52, 2 players)
<font color="#cc0000">Hero bets $1.2</font>, Button calls.

River: J[img]/images/graemlins/heart.gif[/img] ($3.92, 2 players)
Hero???