I sucked out some good hands, but IMO they played real bad

[RutgersKev]

Party Poker 1/2 Hold'em (9 handed) converter

Preflop: Hero is BB with 6[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/club.gif[/img].
UTG folds, UTG+1 calls, MP1 folds, MP2 calls, <font color="#CC3333">MP3 raises</font>, CO folds, Button calls, SB folds, Hero calls, UTG+1 calls, MP2 calls.

Flop: (10.50 SB) 7[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(5 players)</font>
Hero checks, UTG+1 checks, MP2 checks, <font color="#CC3333">MP3 bets</font>, Button calls, Hero calls, UTG+1 folds, MP2 calls.

Turn: (7.25 BB) 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
Hero checks, MP2 checks, <font color="#CC3333">MP3 bets</font>, Button calls, Hero calls, MP2 calls.

River: (11.25 BB) 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets</font>, MP2 calls, MP3 calls, Button calls.

Final Pot: 15.25 BB

Results in white below: <font color="#FFFFFF">
Hero has 6c 5c (three of a kind, fives).
MP2 has 9s 9h (two pair, nines and fives).
MP3 has Qh Qd (two pair, queens and fives).
Button has Ks Kh (two pair, kings and fives).
Outcome: Hero wins 15.25 BB. </font>

I called in the BB with 2 suited cards like Small Stakes Holdem says, and then got a monster flop with my hand. Did I suck them out or or did the big pairs just play this hand real bad?