AA too agressive?

[MezZzo111]

Full Tilt No-Limit Hold'em, $0.25 BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

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

SB ($24.30)
<font color="#C00000">Hero ($85.30)</font>
<font color="#C00000">UTG ($15.50)</font>
MP ($62.40)
Button ($24.65)

Preflop: Hero is BB with A[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/spade.gif[/img].
UTG calls $0.25, <font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises to $1.1</font>, UTG calls $0.60.

Flop: ($2.05) J[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $1</font>, UTG calls $1.

Turn: ($4.05) 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $2.5</font>, <font color="#CC3333">UTG raises to $5</font>, <font color="#CC3333">Hero raises to $22.5</font>, UTG calls $8.65 (All-In).

River: ($31.35) K[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

Final Pot: $31.35

I thaught he got AJ or KJ.......... but is there any reason to just call the Turn? I don't think im against T9 here very often..