KQo stpid turnbluff improved on the river

[higHstaKesOwneR]

Full Tilt Poker, $0.50/$1 NL Hold'em Cash Game, 5 Players
LeggoPoker.com - Hand History Converter

BTN: $91.20
SB: $138.50
BB: $100
UTG: $60.15
Hero (CO): $112.65

Pre-Flop: K[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/spade.gif[/img] dealt to Hero (CO)
UTG folds, <font color="red">Hero raises to $3.50</font>, BTN calls $3.50, 2 folds

Flop: ($8.50) J[img]/images/graemlins/spade.gif[/img] 2[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets $6</font>, BTN calls $6

Turn: ($20.50) J[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">Hero bets $15</font>, BTN calls $15

River: ($50.50) K[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets $88.15 and is All-In</font>

Villian seemed to be donkish and call a lot of flops...
i want to add that i really don't like the turnplay because it's jsut such a bad card to bluff/semibluff but i just don't wanted to give the pot up again vs. a 60/5 donkey [img]/images/graemlins/confused.gif[/img]

however after he calls the turn i hit mi overcard...
i beat many pp's which he cold likely have and a jack in his hand isn't that likely...
if i check all worse checks behind only hand that beat me will be... so shold i play c/f?
till he was so llose and donkish preflop i just decided to make the overbet allin to let it look like a 3street bluff and get a call of a pp

your thoughts on the river?