Party 3/6 6 max: A2o BB Defense

[zram21]

This is my first hand at the table, but I have previous stats on the villan (71/13/1.7).

Preflop: Hero is the BB with A [img]/images/graemlins/heart.gif[/img], 2 [img]/images/graemlins/spade.gif[/img]
3 folds, Button raises, SB folds, Hero calls.

Flop: (4.33 sb) K [img]/images/graemlins/diamond.gif[/img], 5 [img]/images/graemlins/spade.gif[/img], K [img]/images/graemlins/heart.gif[/img] (2 players)
Hero checks, Button bets, Hero calls.

Turn: (3.17 BB) 2 [img]/images/graemlins/diamond.gif[/img] (2 players)
Hero checks, Button bets, Hero bets.

River: (5.17 BB) 8 [img]/images/graemlins/club.gif[/img] (2 players)
Hero checks, Button bets, Hero calls.

Final Pot: 7.17 BB

Anyone find a raise in there? I figured it would be difficult not to see the river against the potential steal aginst this guy and the best line would be to keep letting him bluff his chips if I was behind and if I was ahead I lose the min to get to showdown. Any thoughts?