River play 6M

[NateDog]

I'm posting this hand readless as it was my 2nd hand at the table, and I had no hands on the opponents I was up against. How do YOU handle this river against standard 1/2 6M unknowns?

Party Poker 1/2 Hold'em (6 max, 5 handed) FTR converter on zerodivide.cx

Preflop: Hero is SB with J[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/heart.gif[/img].
<font color="#666666">2 folds</font>, Button calls, <font color="#CC3333">Hero raises</font>, BB calls, Button calls.

Flop: (6 SB) T[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, BB calls, <font color="#CC3333">Button raises</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#CC3333">BB caps</font>, Button calls, Hero calls.

Turn: (9 BB) 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">BB raises</font>, <font color="#CC3333">Button 3-bets</font>, <font color="#CC3333">Hero caps</font>, BB calls, Button calls.

River: (21 BB) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
Hero?