50NL - JJ vs strange line from villain

[wake_up]

I'm new to table - no reads.

How often am I beat here?? Seems like AK or a smaller pair, no?


PokerStars No-Limit Hold'em, $0.50 BB (9 handed) handconverter.com

Hero ($48.15)
BB ($10)
UTG ($47)
UTG+1 ($28)
MP1 ($17.10)
MP2 ($129.70)
MP3 ($73.45)
CO ($24.70)
Button ($12.30)

Preflop: Hero is SB with J[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/spade.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">MP1 raises to $2</font>, MP2 calls $2, <font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises to $8</font>, <font color="#666666">1 fold</font>, MP1 calls $6, <font color="#CC3333">MP2 raises to $25.5</font>, <font color="#CC3333">Hero ???