No reads as I have recently sat down. I've been playing NLHE MTTs/SNGs recently so I almost instacalled this one... then i thought... What would most of you guys do in this spot?

PokerStars No-Limit Hold'em, $1.00 BB (6 handed) FTR converter on zerodivide.cx

Button ($38.40)
Hero ($99)
BB ($26.90)
UTG ($39.95)
MP ($157.50)
CO ($212.50)

Preflop: Hero is SB with J, J.
UTG calls $1, 1 fold, CO calls $1, 1 fold, Hero raises to $4.5, BB raises to $27.9, UTG folds, CO folds, Hero ...