25NL Overpair vs aggro opponent

[RapidEvolution]

PokerStars No-Limit Hold'em, $0.25 BB (8 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

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

UTG+1 ($12.15)
MP1 ($24.75)
MP2 ($27.20)
CO ($5)
Button ($41.65)
Hero ($30.65)
BB ($28.05)
UTG ($37.20)

Preflop: Hero is SB with A[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/club.gif[/img]. CO posts a blind of $0.35.
<font color="#666666">4 folds</font>, CO (poster) checks, Button calls $0.25, <font color="#CC3333">Hero raises to $1.25</font>, <font color="#666666">1 fold</font>, CO folds, Button calls $1.

Flop: ($3.10) 8[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $1.5</font>, <font color="#CC3333">Button raises to $4</font>, Hero calls $2.50.

Turn: ($11.10) 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero?


Villain is 27/5/7 over about 150 hands. I've seen him bet mediocre hands, but can't really remember him calling preflop and then raising the flop. What's my turn line here? Do we b/f the turn or c/c the turn and river?