the stupid end of a full house

[Monty Cantsin]

The table is loose and bit on the passive side for 6-max. MP seems slightly tighter than table average but by no means tight.

Party Poker 5/10 Hold'em (6 max, 6 handed)

Preflop: Monty is SB with K[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/spade.gif[/img].
<font color="666666">1 fold</font>, <font color="CC3333">MP raises</font>, CO calls, Button calls, Monty calls, <font color="666666">1 fold</font>.

Flop: (9 SB) A[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/spade.gif[/img] <font color="blue">(4 players)</font>
Monty checks, <font color="CC3333">MP bets</font>, CO folds, Button folds, Monty calls.

Turn: (5.50 BB) K[img]/images/graemlins/diamond.gif[/img] <font color="blue">(2 players)</font>
Monty checks, <font color="CC3333">MP bets</font>, Monty calls.

River: (7.50 BB) T[img]/images/graemlins/spade.gif[/img] <font color="blue">(2 players)</font>
Monty...

I plan to check/call here. Is there a different way to play this at any point? Is this an obvious fold on the flop?

/mc