25NL - 55 OOP, lead out flop?

[VLV]

No reads on the other players. Should I even be calling the 3bet PF?

Poker Stars - No Limit Hold'em Cash Game - $0.10/$0.25 Blinds - 6 Players - (LegoPoker Hand History Converter)

SB: $8.65
BB: $25.90
Hero (UTG): $25.60
MP: $17.90
CO: $24.65
BTN: $25.55

Preflop: Hero is dealt 5[img]/images/graemlins/diamond.gif[/img] 5[img]/images/graemlins/spade.gif[/img] (6 Players)
<font color="red">Hero raises to $1.00</font>, MP calls $1.00, <font color="red">CO raises to $3.25</font>, 3 folds, Hero calls $2.25, MP calls $2.25

Flop: ($10.10) 3[img]/images/graemlins/heart.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] (3 Players)
<font color="red">Hero ???</font>