50NL - KK on a dangerous flop

[alex-star]

MP2 is like 38/5/1 after 100 hands.
What's our line?

No Limit Holdem Ring game
Blinds: $0.25/$0.50
8 players
Converter

Stack sizes:
UTG: $30.95
UTG+1: $19.50
Hero: $72.95
MP2: $38.35
CO: $34.30
Button: $89.25
SB: $20.90
BB: $18.50

Pre-flop: (8 players) Hero is MP1 with K[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/heart.gif[/img]
UTG folds, UTG+1 calls, <font color="#cc0000">Hero raises to $2</font>, MP2 calls, 2 folds, SB calls, BB calls, UTG+1 calls.

Flop: 8[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/diamond.gif[/img] ($10, 5 players)
<font color="#cc0000">SB bets $1</font>, BB folds, UTG+1 calls, <font color="#cc0000">Hero ??</font>