What to do with JJ here?

[SonOfWestwood]

SB has stats of 53%/2%/0.56/23%/43% after 49 hands.

I haven't noticed when he has raised, and certainly haven't seen him re-raise before. So, after his re-raise I figure I'd just call and play to hit a set. But then the flop comes all unders, so now what? And was calling the re-raise pre-flop okay, or is that too fishy?

Thanks for any comments.

Party Poker No-Limit Hold'em, $ BB (10 handed) converter

UTG ($23.75)
UTG+1 ($41.06)
Hero ($21.2)
MP1 ($48.93)
MP2 ($30.9)
MP3 ($32.15)
CO ($26.15)
Button ($24.54)
SB ($29.2)
BB ($25)

Preflop: Hero is UTG+2 with J[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/club.gif[/img]. SB posts a blind of $0.1.
<font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $1.5</font>, <font color="#666666">5 folds</font>, <font color="#CC3333">SB (poster) raises to $3.9</font>, <font color="#666666">1 fold</font>, Hero calls $2.50.

Flop: ($8.25) 8[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">SB bets $6</font>, Hero ??