Party 15:30 Can I find a fold here?

[jdock99]

Villian is 68/28/3 over about 50 hands. However, he is currently running over table and winning 70% of showdowns. Preflop he is obviously major LAG, but I do not have a real good read on his postflop play other than he is aggressive, partly because I am multitabling and partly because he is hitting the board hard and winning, and we all look like geniuses when that happens. So here is hand.
Party Poker 15/30 Hold'em (10 handed) converter

Preflop: Hero is MP1 with K[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/heart.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, MP3 calls, <font color="#666666">4 folds</font>.

Flop: (5.66 SB) A[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/club.gif[/img], 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">MP3 raises</font>, Hero calls.

Turn: (4.83 BB) 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">MP3 bets</font>, Hero calls.

River: (6.83 BB) 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">MP3 bets</font>, Hero calls.

Final Pot: 8.83 BB

Villian had A7o and my hand is no good!!

I hate when I have KK and there are 2 aces on board, so much easier to play when there is only 1. Also, it seems most (bad) players like to raise their flopped trips on the turn, so his flop raise definitely confused the heck out of me. My original plan was to call down and fold if flush came, however, flush came and I called anyways, mainly because I am a bad player [img]/images/graemlins/frown.gif[/img]. Is there anyway to find a laydown here?