AKo vs. a dick (lancasteraus)

[PokerBob]

villain here is lancasteraus. he is about 23/19/3.5 he is an over-aggro spaztard, but is a winner in the game. he reads this forum, but to my knowledge has yet to have the stones to reveal himself. he knows who i am and has been berating me from the moment he sat down at the table. he loves the fact that i had a 500BB drop, and assumes i am a losing player. he talks about outplaying me, but i doubt he has pulled any moves. i have said nothing throughout all of this. what's your turn/river play?

Party Poker 3/6 Hold'em (6 max, 6 handed) converter

Preflop: Hero is UTG with A[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/diamond.gif[/img].
<font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">CO 3-bets</font>, <font color="#666666">1 fold</font>, SB calls, <font color="#666666">1 fold</font>, Hero calls.

lancasteraus : Uh Oh (and then he says my screen name. he likes to call me PokerNob, as he is witty.)

Flop: (10 SB) A[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, Hero checks, <font color="#CC3333">CO bets</font>, SB calls, <font color="#CC3333">Hero raises</font>, CO calls, SB calls.

lancasteraus : LOL. wtf you doing? asking to get owned?

Turn: (8 BB) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">CO raises</font>, SB folds, <font color="#CC3333">Hero 3-bets</font>, <font color="#CC3333">CO caps</font>, Hero calls.

river: 7 [img]/images/graemlins/diamond.gif[/img]
I check, he checks. he shows AQo and MHIG. Now that I know what he had, I really wish I would have bet the river, as he clearly would have called. But I still think check/call here is the superior line. By the way, I intentioanlly just called the preflop 3bet as I KNEW I could get him to overplay AQ-AT if I did. [img]/images/graemlins/grin.gif[/img]