help me extract more value here (big flop semi-deep)

[neverforgetlol]

villain seems tight but is tilting or something, swearing in chat and doesn't like me much it seems. i'm too deep i think to try to get allin on the flop here. on the turn, if i bet and he doesn't have an ace i think he's folding, and if he does he'll do the betting for me.

PokerStars No-Limit Hold'em, $0.50 BB (4 handed) internettexasholdem.com

Hero ($94.80)
UTG ($118.95)
Button ($14.95)
SB ($79.20)

Preflop: Hero is BB with J[img]/images/graemlins/club.gif[/img], Q[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">UTG raises to $2</font>, <font color="#666666">2 folds</font>, Hero calls $1.50.

Flop: ($4.25) 9[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">UTG bets $2.5</font>, <font color="#CC3333">Hero raises to $9</font>, <font color="#CC3333">UTG raises to $18.5</font>, Hero calls $9.50.

Turn: ($41.25) A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, UTG checks.

River: ($41.25) 9[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $24</font>, UTG folds.

Final Pot: $65.25