Slowplayed KK on the river facing all-in

[platty]

Just sat down, no real stats on the villain, knew the MP though - in my book he was marked as very aggro and raised way to much, unstacked him many times before with this move. Was hoping that he would bet with some garbage again.

Eventually folded the river for having no notes or stats on the villain. Don't like my bet on the river

$0.10/$0.25 NL Hold'em Cash Game, 6 Players
LegoPoker Hand History Converter

MP: $19.30
CO: $11.77
BTN: $6.84
SB: $24.20
BB: $12.45
Hero (UTG): $11.66

Pre-Flop: K[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/heart.gif[/img] dealt to Hero (UTG)
Hero calls $0.25, MP folds, CO calls $0.25, BTN calls $0.25, SB folds, BB checks

Flop: ($1.10) 8[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/diamond.gif[/img] (4 Players)
BB checks, <font color="red">Hero bets $1</font>, CO calls $1, 2 folds

Turn: ($3.10) 7[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $2</font>, CO calls $2

River: ($7.10) 8[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets $4</font>, <font color="red">CO raises to $8.51</font>, Hero folds

Results: $15.10 Pot
CO mucked and WON $18.86 (+$11.61 NET)

suggestions welcomed