JJ in multiway capped pf

[silkyslim]

Only read I have is that MP2 is tight and somewhat passive. Should I have bet out? Should I continue?

Party Poker 1/2 Hold'em (9 max, 9 handed) converter

Preflop: Hero is UTG+1 with J[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">UTG raises</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#666666">1 fold</font>, MP2 calls, <font color="#666666">2 folds</font>, <font color="#CC3333">Button caps</font>, <font color="#666666">2 folds</font>, UTG calls, Hero calls, MP2 calls.

Flop: (17.50 SB) 3[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
UTG checks, Hero checks, MP2 checks, <font color="#CC3333">Button bets</font>, UTG calls, Hero ?