3/6 JJ: Tough Flop Decision? What to do...?

[AL5AcE]

Hi guys, I thought this was a pretty tough flop decision. I just moved up to 3/6. Villan is in CO and i've seen him 3 bet a couple of raises before and plays aggressively.

OK, bison's hand converter is messed up. I'll try my best:

Party Poker (8 handed)

I am in MP1 with J [img]/images/graemlins/heart.gif[/img]J [img]/images/graemlins/spade.gif[/img]

UTG+1 Calls, I raise, Villan 3-bets in CO, UTG+1 Calls, I Call.

Flop: K [img]/images/graemlins/heart.gif[/img] 8 [img]/images/graemlins/heart.gif[/img] 6 [img]/images/graemlins/spade.gif[/img]

UTG+1 Checks, I bet, CO Raises, UTG+1 Calls, I fold (getting 15.3/1)

Turn: K [img]/images/graemlins/diamond.gif[/img]

UTG+1 Checks, CO bets, UTG+1 Calls

River: T [img]/images/graemlins/club.gif[/img]

UTG+1 Checks, CO bets, UTG+1 Calls

Results in white below: <font color="#FFFFFF">
UTG+1 has 6d Ah (two pair, kings and sixes).
CO has 9h 9d (two pair, kings and nines).
Outcome: CO wins 11.16 BB</font>


How is the fold on the flop? Anyone play this hand differently? Thanks for your responses!