AA facing heat on river

[Stalrock]

Poker Stars - No Limit Hold'em Cash Game - $0.50/$1 Blinds - 6 Players - (LegoPoker Hand History Converter)

SB: $250.20
BB: $120.85
Hero (UTG): $109.45
MP: $134.85
CO: $271.65
BTN: $147.00

Reads: <font color="blue">Villain is 34; 18, 1.8</font>

Preflop: Hero is dealt A[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/heart.gif[/img] (6 Players)
<font color="red">Hero raises to $4.00</font>, MP folds, CO calls $4.00, BTN folds, SB calls $3.50, BB folds

Flop: ($13) 5[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/spade.gif[/img] 9[img]/images/graemlins/spade.gif[/img] (3 Players)
SB checks, <font color="red">Hero bets $9.00</font>, CO calls $9.00, SB calls $9.00

Turn: ($40) K[img]/images/graemlins/diamond.gif[/img] (3 Players)
SB checks, <font color="red">Hero bets $28.00</font>, CO calls $28.00, SB folds

River: ($96) 3[img]/images/graemlins/spade.gif[/img] (2 Players)
Hero checks, <font color="red">CO bets $79.00</font>,


What action would you guys take on the river? Weak lead? Check, call? Check, fold?

[billybeartku]

I would bet more on the turn, at least 30 up to 35 36 there. River meh...I would probably b/f since checking gives your opponent perfect chance to utilize the 3rd flush card to bluff at you.

[giles]

Tough spot. I might block bet $20 into the pot and fold to a raise. What do people think about that line?