200NL - A8s hits trips on the river in 3-bet pot

[Fat Nicky]

villain is 23/16/4 over a couple hundred hands. early in my session, so no 3-bet history. i got my stack by winning an all in pot w/AQ against a guy with 1/2 a stack. he had his stack when i sat down.

Full Tilt Poker
No Limit Hold'em Cash Game
$1/$2 Blinds
6 Players - (LegoPoker HH Converter)

SB: $208.70
BB: $200.00
UTG: $213.60
MP: $55.00
CO: $382.75
Hero (BTN): $313.25

Preflop: Hero is dealt 8[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/spade.gif[/img] (6 Players)
2 folds, <font color="red">CO raises to $7.00</font>, <font color="red">Hero raises to $24.00</font>, 2 folds, CO calls $17.00

Flop: ($51) A[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/heart.gif[/img] (2 Players)
CO checks, Hero checks

Turn: ($51) K[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">CO bets $40.00</font>, Hero calls $40.00

River: ($131) A[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">CO bets $80.00</font>, Hero ????