3 betting KQo OOP no good?

[JROK777]

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $0.25/$0.50
6 players
Converter

Stack sizes:
UTG: $50
UTG+1: $62.55
CO: $107.50
Button: $50
Hero: $50.25
BB: $16.95

Pre-flop: (6 players) Hero is SB with Q[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/spade.gif[/img]
UTG+1 folds, <font color="#cc0000">CO raises to $1.75</font>, Button folds, <font color="#cc0000">Hero raises to $5.75</font>, BB folds, CO calls.

Flop: Q[img]/images/graemlins/heart.gif[/img] 5[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/heart.gif[/img] ($12, 3 players)
<font color="#cc0000">Hero bets $8.5</font>, CO calls.

Turn: 8[img]/images/graemlins/heart.gif[/img] ($29, 3 players)
Hero checks, <font color="#cc0000">CO bets $21.5</font>, Hero folds.
Uncalled bets: $21.5 returned to CO.

River: : ($29, 2 players)


Results:
Final pot: $29

Villian was raising a lot. Should I be 3 betting here with KQ vs. this kind of player? As played, what line would you take?