NL50 Overcards + flushdraw

[bigoliver]

Party Poker - No Limit Hold'em Cash Game - $0.25/$0.50 Blinds - 6 Players - (LegoPoker HH Converter (http://www.legopoker.com/hh))

SB: $80.25
<font color="black">Hero (BB): $105.40</font>
UTG: $51.35
MP: $36.21
CO: $72.30
BTN: $51.11

<font color="black">Reads: </font><font color="blue">Villan 33 / 15 / 5.3</font>

<font color="black">Preflop:</font> Hero is dealt A/images/graemlins/heart.gif K/images/graemlins/heart.gif (6 Players)
UTG folds, MP calls $0.50, <font color="red">CO raises to $2</font>, 2 folds, <font color="red">Hero raises to $6.75</font>, MP folds, CO calls $4.75

<font color="black">Flop:</font> ($14.25) 5/images/graemlins/heart.gif 7/images/graemlins/club.gif 6/images/graemlins/heart.gif (2 Players)
<font color="red">Hero bets $10.75</font>, CO calls $10.75

<font color="black">Turn:</font> ($35.75) Q/images/graemlins/spade.gif (2 Players)
Hero checks, <font color="red">CO bets all-in for $54.80</font>, Hero folds

Pot Size: $90.55

What do thing Villan is holding here and do you bet the turn again here?