AJ, lop J23, villian calls cbet, bets pot into me on turn

[halperin]

Full Tilt Poker
$0.25/$0.50 No Limit Hold'em Ring Game
5 Players
LegoPoker Hand Converter (http://www.legopoker.com/hh)

<font color="black">Stack Sizes</font>
BTN: $58.70
SB: $49.6
BB: $54.35
Hero (UTG): $52.30
CO: $49

<font color="black">Preflop:</font> A/images/graemlins/club.gif J/images/graemlins/club.gif ($0.75, 5 players)
<font color="red">Hero raises to $1.75</font>, CO folds, BTN calls $1.75, SB calls $1.50, BB folds

<font color="black">Flop:</font> 2/images/graemlins/club.gif 3/images/graemlins/diamond.gif J/images/graemlins/diamond.gif ($5.75, 3 players)
SB checks, <font color="red">Hero bets $4.25</font>, BTN calls $4.25, SB calls $4.25

<font color="black">Turn:</font> 2/images/graemlins/club.gif 3/images/graemlins/diamond.gif J/images/graemlins/diamond.gif [6/images/graemlins/spade.gif] ($18.5, 3 players)
<font color="red">SB bets $18.50</font>, Hero folds, BTN folds
Uncalled bet of $18.50 returned to SB

<font color="black">River:</font> 2/images/graemlins/club.gif 3/images/graemlins/diamond.gif J/images/graemlins/diamond.gif 6/images/graemlins/spade.gif [] ($18.5, 1 players)
No action

[Entropy4]

I think good fold. I don't see him doing this with anything that you can beat.

[VPIP100]

Depends on image I guess.

Any reads?