KK, huge pot, dogs and cats living together, what's your turn move?

[SomethingClever]

Reads: MP1 is loose and too aggressive preflop.

Party Poker 1/2 Hold'em (10 handed)

Preflop: Hero is Button with K[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/heart.gif[/img].
<font color="666666">3 folds</font>, <font color="CC3333">MP1 raises</font>, <font color="666666">1 fold</font>, MP3 calls, <font color="666666">1 fold</font>, <font color="CC3333">Hero 3-bets</font>, SB calls, <font color="666666">1 fold</font>, MP1 calls, MP3 calls.

Flop: (13 SB) 6[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/heart.gif[/img] <font color="blue">(4 players)</font>
SB checks, MP1 checks, <font color="CC3333">MP3 bets</font>, <font color="CC3333">Hero raises</font>, SB calls, MP1 calls, <font color="CC3333">MP3 3-bets</font>, <font color="CC3333">Hero caps</font>, SB calls, MP1 calls, MP3 calls.

Turn: (14.50 BB) 7[img]/images/graemlins/club.gif[/img] <font color="blue">(4 players)</font>
SB checks, <font color="CC3333">MP1 bets</font>, <font color="CC3333">MP3 raises</font>, Hero calls down?