5/10 I know he's FOS, but do I still have to fold?

[bottomset]

UTG is a really bad player
BB is a little tight tag 21/14 2.4 turn aggression

Party Poker 5/10 Hold'em (6 max, 4 handed) FTR converter on zerodivide.cx

Preflop: Hero is Button with 5[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/club.gif[/img].
UTG calls, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, BB calls, UTG calls.

Flop: (6.40 SB) 4[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, UTG checks, <font color="#CC3333">Hero bets</font>, BB calls, UTG folds.

Turn: (4.20 BB) 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets</font>, Hero

this just felt like a I picked up outs I bet type of thing