Top two facing allin on turn
 

Villian is unknown in this hand, he's only been at table for a few hands.

PokerStars No-Limit Hold'em, $0.50 BB (8 handed) converter

($7.30)
MP1 ($23.20)
MP2 ($11.75)
CO ($16)
Button ($21.80)
SB ($73.30)
BB ($61)
UTG ($51.40)

Preflop: Hero is BB with Q [img]/images/graemlins/club.gif[/img],9 [img]/images/graemlins/spade.gif[/img].
UTG calls $0.50, UTG+1 calls $0.50, MP1 calls $0.50, 3 folds, SB completes, Hero checks.

Flop: ($0.75) 2[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(8 players)</font>
SB checks, <font color="#CC3333">Hero bets $2</font>, UTG calls $2, UTG+1 folds, MP1 folds, SB folds.

Turn: ($4.75) Q[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(5 players)</font>
<font color="#CC3333">Hero bets $4</font>, <font color="#CC3333">UTG raises to $48.9</font>, Hero ???.

Re: Top two facing allin on turn
 

I've seen this done with combo draws, like say he has 78[img]/images/graemlins/spade.gif[/img]. It's probably more likely he has a set though.

Why did you bet so much on the flop by the way?

Re: Top two facing allin on turn
 

Looks like the converter screwed up there was $2.50 in the pot on the flop, I usually bet at least 75% of the pot on flop if I bet.