Does he really have a King? (aka...God hates Aces)

[Kyriefurro]

Normally, against most players I think this is a pretty easy fold. But against THIS particular villain, I'm not so sure.

Villain is TAG, and a pretty good one too. He may be a 2+2er. I'm starting to think he takes personal delight in giving me a case of heartburn. I know he's been taking the occassional shot at me, since I've caught him in the act a couple of times.

Party Poker No-Limit Hold'em, $ BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Button ($10.38)
SB ($191.89)
BB ($106.50)
UTG ($100)
Hero ($149.81)
CO ($168.79)

Preflop: Hero is MP with A[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/club.gif[/img]. SB posts a blind of $0.50.
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $6</font>, CO calls $6, <font color="#666666">3 folds</font>.

Flop: ($13.50) K[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $8</font>, CO calls $8.

Turn: ($29.50) 6[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero.....?

Lead? Check/call? Check/fold? Does villain's flop call usually indicate a K? Ugh!! I'm so confused!

What's my line?