3-handed river decision

[Saborion]

I've been very aggro so far, raising just about any hand on the button (because I've had raising hands), so my image at this point is, well, LAG I suppose. Me LAG:ing it up started about when it became 3-handed. While it was 6-handed I played, well, TAG I suppose. Opponent appears to be slightly loose pre, and somewhat loose post. When the table had 6 players at it he min bet into me on AJxr flop with A9o and called my near pot size raise when I had raised preflop. Him just calling the flop and turn, well, I thought he could have something and was tired of me acting like a bully, but I lack experience and suck at hand reading, so opinions please. Flop is standard I assume? Turn?

Party Poker No-Limit Hold'em, $ BB (6 max, 3 handed) FTR converter on zerodivide.cx

saw flop|<font color="#C00000">saw showdown</font>

<font color="#C00000">BB ($176.20)</font>
<font color="#C00000">Hero ($306.40)</font>
SB ($103.86)

Preflop: Hero is Button with A[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/diamond.gif[/img]. SB posts a blind of $0.50.
<font color="#CC3333">Hero raises to $4</font>, <font color="#666666">1 fold</font>, BB calls $3.

Flop: ($8.50) 9[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets $8</font>, BB calls $8.

Turn: ($24.50) 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets $23</font>, BB calls $23.

River: ($70.50) Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
BB calls $141.20 (All-In)
Now what?