TPTK, but it's 3-bet to me on the flop

[five4suited]

MP3 seems tight and aggressive, button is tight and pretty aggressive and CO is loose and aggressive preflop, a fish.

Party Poker 3/6 Hold'em (9 handed) HandConverter Link

Preflop: Hero is BB with A[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/club.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">MP3 raises</font>, CO calls, Button calls, <font color="#666666">1 fold</font>, Hero calls.

Flop: (8.33 SB) Q[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(5 players)</font>
Hero checks, <font color="#CC3333">MP3 bets</font>, <font color="#CC3333">CO raises</font>, <font color="#CC3333">Button 3-bets</font>, Hero ???