Super big pot with KK and a ragged flop

[maverickai]

Just encountered a hand in a very big pot. Players are loose:

Preflop: Hero is MP1 with K[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/diamond.gif[/img].
UTG calls, UTG+1 calls, <font color="#CC3333">UTG+2 raises</font>, <font color="#CC3333">HERO 3-bets</font>,<font color="#666666"> 5 folds</font>, Button calls, UTG calls, UTG+1 calls, <font color="#CC3333">UTG+2 caps</font>, HERO calls, Button calls, UTG calls, UTG+1 calls.

Flop: (21.5 SB) 9[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/diamond.gif[/img], 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(5 players)</font>
<font color="#CC3333">MP1 bets</font>, <font color="#CC3333">HERO ??</font>

My question is, do I try to protect my hand here, or raise for value?