25NL - KK check river to induce bluff?

[VLV]

Villain is 52/15/5 over 141

Full Tilt Poker, $0.10/$0.25 NL Hold'em Cash Game, 6 Players
LeggoPoker Hand History Converter

MP: $31.25
CO: $18.50
BTN: $15.35
Hero (SB): $28.35
BB: $68.90
UTG: $24.75

Pre-Flop: K[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/heart.gif[/img] dealt to Hero (SB)
UTG folds, MP calls $0.25, CO calls $0.25, BTN folds, <font color="red">Hero raises to $1.50</font>, 2 folds, CO calls $1.25

Flop: ($3.50) 4[img]/images/graemlins/diamond.gif[/img] Q[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $3</font>, CO calls $3

Turn: ($9.50) 5[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">Hero bets $8</font>, CO calls $8

River: ($25.50) 7[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero ???</font>

Sucky river but I guess I pretty much have no choice but to get it in. Question is, villain may still fold if I bet and he has nothing, but if I check I'm going to get bluffed a large majority of the time. Would I get more value from checking rather than leading? Villain has $6 behind BTW.