KK in a tough spot NL200

[schick]

Sorry to flood the board with posts. Here is another overpair of mine in a tough spot.

Villian is pretty loose, I don't have a HUD so I didn't know he was this loose till after putting hands in poker tracker. He is 43/16/2.87 over 159 hands. I have seen him make some very loose preflop calls, but he has not acted donkily making big bets, or calling big bets without big hands post flop. He probably views me as TAG, and I have not turned over many hands postflop.

Party Poker No-Limit Hold'em, $ BB (10 handed) FTR converter on zerodivide.cx

MP3 ($237.85)
CO ($214.05)
Hero ($390.05)
SB ($198)
BB ($188)
UTG Villian ($263.05)
UTG+1 ($325.70)
UTG+2 ($157.30)
MP1 ($211.03)
MP2 ($182.97)

Preflop: Hero is Button with K[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/heart.gif[/img]. SB posts a blind of $1.
UTG Villian raises to $7</font>, 6 folds</font>, Hero raises to $27</font>, 2 folds</font>, UTG Villian calls $20.

Flop: ($57) Q[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/spade.gif[/img] (2 players)</font>
Villian checks, Hero bets $40</font>, Villian calls $236.05 (All-In), Hero ?.

No idea how to respond in this spot. Really unsure if his hand range could include AQ or not, I have not seen him play TPTK this aggressively before. Is this a standard fold?


Thanks,
Jason