Party 2/4: 99 in MP2

[zram21]

MP1 in this hand was loose passive pre-flop and passive post-flop. The Button is tight passive preflop and aggressive post-flop.

Good flop bet? Easy fold on the turn?

Party Poker 2/4 Hold'em (8 handed) converter

Preflop: Hero is MP2 with 9[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls, MP1 calls, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">Button 3-bets</font>, <font color="#666666">2 folds</font>, UTG+1 folds, MP1 calls, Hero calls.

Flop: (11.50 SB) 5[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
MP1 checks, <font color="#CC3333">Hero bets</font>, Button calls, MP1 calls.

Turn: (7.25 BB) A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">MP1 bets</font>, Hero folds, <font color="#CC3333">Button raises</font>, MP1 calls.

River: (11.25 BB) 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
MP1 checks, <font color="#CC3333">Button bets</font>, MP1 calls.

Final Pot: 13.25 BB

Once the button just called the flop bet I put him on over cards. Probably AK. So even if the loose passive was bluffing the straight I was probably cooked anyway. How did I do?