25NL - AJs w/ top pair facing overbet on river

[VLV]

Villain is 35/13/2.5 over 400 hands.

Full Tilt Poker - No Limit Hold'em Cash Game - $0.10/$0.25 Blinds - 4 Players - (LegoPoker Hand History Converter)

SB: $8.10
BB: $66.30
UTG: $66.40
Hero (BTN): $24.90

Preflop: Hero is dealt J[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/heart.gif[/img] (4 Players)
<font color="red">UTG raises to $0.85</font>, Hero calls $0.85, SB folds, BB calls $0.60

Flop: ($2.65) 8[img]/images/graemlins/diamond.gif[/img] 9[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/spade.gif[/img] (3 Players)
BB checks, UTG checks, <font color="red">Hero bets $2.00</font>, BB folds, UTG calls $2.00

Turn: ($6.65) 9[img]/images/graemlins/spade.gif[/img] (2 Players)
UTG checks, Hero checks

River: ($6.65) 2[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">UTG bets $7.50</font>, Hero ???

Also, should I have bet turn?