Another JJ vs EP raiser

[brentlip]

MP1 is a solid TAG. The other two involved are horrible. What do I do on this flop?

Party Poker 0.50/1 Hold'em (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is BB with J[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, UTG+1 calls, <font color="#CC3333">MP1 raises</font>, <font color="#666666">3 folds</font>, SB calls, <font color="#CC3333">Hero 3-bets</font>, UTG+1 calls, MP1 calls, SB calls.

Flop: (12 SB) K[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, Hero ???