Anybody fold a straight here?

[pokerjunky]

BB is 45/1/.2 Very passive and straightforward, doens't bet or raise without the goods. So far my reads on him have been correct.

Party Poker 3/6 Hold'em (10 handed) FTR converter on zerodivide.cx

Preflop: Hero is UTG with 6[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/heart.gif[/img].
Hero calls, [color=#666666]3 folds</font>, [color=#CC3333]MP2 raises</font>, [color=#666666]2 folds</font>, Button calls, [color=#666666]1 fold</font>, BB calls, Hero calls.

Flop: (8.40 SB) 4[img]/images/graemlins/heart.gif[/img], 3[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/diamond.gif[/img] [color=#0000FF](4 players)</font>
BB checks, [color=#CC3333]Hero bets</font>, [color=#CC3333]MP2 raises</font>, Button calls, BB calls, Hero calls.

Turn: (8.20 BB) 2[img]/images/graemlins/club.gif[/img] [color=#0000FF](4 players)</font>
BB checks, [color=#CC3333]Hero bets</font>, [color=#CC3333]MP2 raises</font>, Button folds, BB calls, [color=#CC3333]Hero 3-bets</font>, MP2 calls, BB calls.

River: (17.20 BB) K[img]/images/graemlins/diamond.gif[/img] [color=#0000FF](3 players)</font>
[color=#CC3333]BB bets</font>, Hero folds, MP2 calls.

Final Pot: 19.20 BB