AQ flops trips in 3-bet pot

[thejerkface]

Villain is 23/13/3 after 85 hands. This is the first hand he 3-bet me. He probably has a narrow range, and maybe I should just fold it pre-flop b/c of reverse implied odds. Thoughts? I don't normally lead out in 3-bet pots, but I've been trying it out recently. My plan was to lead flop, check turn, and then bet river. I thought this would get the most out of KK-JJ, and if he bet the turn, I'd have a pretty good idea if he had AK. You guys like this line? I didn't know what to do on the river because I'm now losing to KK, which is definitely a big part of his range.

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

SB ($409.90)
BB ($87.35)
UTG ($393.67)
MP ($390)
Hero ($785.10)
Button ($538.30)

Preflop: Hero is CO with A[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/heart.gif[/img]. SB posts a blind of $2.
<font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $16</font>, <font color="#CC3333">Button raises to $45</font>, <font color="#666666">2 folds</font>, Hero calls $29.

Flop: ($96) 7[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $68</font>, Button calls $68.

Turn: ($232) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, Button checks.

River: ($232) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero...

bet/call?
bet/fold?
check/call?
check/fold?