PL 200 tough spot

[Go_Blue88]

Party Poker Pot-Limit Hold'em, $ Hero (6 max, 6 handed) converter

Hero ($669.94)
UTG ($64.84)
MP ($257.82)
CO ($157.35)
Button ($241.31)
SB ($108.95)

Preflop: Hero is BB with J[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/diamond.gif[/img]. SB posts a blind of $1.
UTG calls $2, <font color="#CC3333">MP raises to $5</font>, <font color="#666666">1 fold</font>, Button calls $5, <font color="#666666">1 fold</font>, Hero calls $3, UTG calls $3.

Flop: ($21) 7[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets $15</font>, UTG pushes for 59.84, MP folds, Button calls $59.84, Hero??

UTG is very bad and i know that i'm ahead of him. button is an average player; i haven't seen him do anything too crazy. what's your play here?