Misplayed KK from SB?

[The Glove]

I don't know if this hand is interesting, but I post very rarely so cut me some slack.

UTG appears to be a little bit laggy from what I've seen. He's 40/25/3.5. CO appears to be a bit too loose and a bit too aggressive, but I haven't seen him get out of line yet (36/26/1.9).

This is only my second hand at the table, so neither player has any reads on me yet. I'll elaborate on my questions/thoughts and the results later.

Party Poker 3/6 Hold'em (6 max, 6 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

Preflop: Hero is SB with K/images/graemlins/heart.gif, K/images/graemlins/spade.gif.
<font color="#CC3333">UTG raises</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">CO 3-bets</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero caps</font>, BB calls, UTG calls, CO calls.

Flop: (16 SB) Q/images/graemlins/diamond.gif, J/images/graemlins/diamond.gif, Q/images/graemlins/club.gif <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets</font>, BB folds, UTG calls, <font color="#CC3333">CO raises</font>, Hero calls, UTG calls.

Turn: (11 BB) 9/images/graemlins/club.gif <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, UTG calls, <font color="#CC3333">CO raises</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#CC3333">UTG caps</font>, CO folds, Hero calls.

River: (21 BB) 4/images/graemlins/heart.gif <font color="#0000FF">(2 players)</font>
Hero checks, UTG checks.

Final Pot: 21 BB

[Tropex]

Tough one but I think you played turn a bit aggressively don't you think? He could have AQ. Maybe he was just on a busted flush draw but he probably showed down something like AJ ? Or KJs, maybe even KQ, JJ or AA. I think the river check was okay though after the turn cap (which I think might've been too much) since you didn't hold a queen Rivers shows that neither did he :] I would've rather capped the flop and slowed down a bit on turn.

[spydog]

I would have called CO's turn raise. UTG appears to be drawing very thin so why make him face 2 cold, especially when you might be drawing very thin also?

[weevil]

***post deleted***

[Jgents]

3-bet the flop.