($6 PP) KK, a raise and a lot of callers in front

Party Poker No-Limit Hold'em Tourney, Big Blind is t15 (8 handed) FTR converter on zerodivide.cx

Hero (t1025)
UTG (t870)
UTG+1 (t570)
MP1 (t740)
MP2 (t2215)
CO (t1085)
Button (t830)
SB (t665)

Preflop: Hero is BB with K[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/diamond.gif[/img].
<font color="#CC3333">UTG raises to t100</font>, <font color="#666666">2 folds</font>, MP2 calls t100, CO calls t100, <font color="#666666">2 folds</font>, Hero???

What should Hero do here? Fold? [img]/images/graemlins/wink.gif[/img]
Seriously: raise, push? I wouldn't mind being up against one villain here, but more than one is maybe not too good?