25nl; gutshot SFD + bottom pair = call vs. raise?

[Schiester]

$0.10/$0.25 Blinds - 6 Players - (LegoPoker Hand History Converter)

Villan is 35/10/.4(50) and apparently pretty paranoid about the FD.

SB: $10.45
BB: $38.52
UTG: $26.78
MP: $23.94
Hero (CO): $35.06
BTN: $19.97

Preflop: Hero is dealt 3[img]/images/graemlins/spade.gif[/img] 5[img]/images/graemlins/spade.gif[/img] (6 Players)
2 folds, <font color="red">Hero raises to $1.00</font>, BTN calls $1.00, 2 folds

Flop: ($2.35) 7[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/spade.gif[/img] 5[img]/images/graemlins/heart.gif[/img] (2 Players)
Hero checks, <font color="red">BTN bets $2.25</font>, Hero calls $2.25

Turn: ($6.85) J[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets $4.00</font>, BTN folds

Pot Size: $10.85

With 18 outs:

-3 for two pair
-2 for trips
-4 for straight
-9 for flush

I figured I was well ahead of his range.

Is there any way I could have played the lop differently to stop it looking like I was simply flush hunting?