99 hits turn straight

[HermannTL]

PokerStars 0.10/0.20 Hold'em (9 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is MP3 with 9[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls, <font color="#666666">2 folds</font>, Hero calls, <font color="#666666">2 folds</font>, SB completes, BB checks.

Flop: (4 SB) 8[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, BB checks, UTG+1 checks, Hero checks.

Turn: (2 BB) T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, BB checks, <font color="#CC3333">UTG+1 bets</font>, Hero...

SB 34/2.9/1.25 (~30 hands), saw him play TT from LP calling all streets UI on 9332Q.

BB 11/5.6/? (~15 hands), saw KQo in EP call flop &amp; raise turn on T644

UTG+1 63/12.5 (~20 hands) twice saw him bet TPNK on flop&amp;turn

First of all, I should have bet the flop with 2nd pair &amp; gutshot. Then the straight comes in on the turn and to me a raise seems obvious. What do you think?