42s and the flop explodes

SB: 28/17/1
MP3: 42/23/5
CO: got nothin (on him, that's not a hand read)
Button: 67/41/0.8

(All in 40-80 hands)

Party Poker 2/4 Hold'em (9 handed) FTR converter on zerodivide.cx

Preflop: Hero is BB with 2[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/diamond.gif[/img]. UTG posts a blind of $2.
UTG (poster) checks, <font color="#666666">3 folds</font>, MP3 calls, CO calls, Button calls, SB completes, Hero checks.

Flop: (6 SB) 6[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(6 players)</font>
<font color="#CC3333">SB bets</font>, Hero calls, UTG folds, <font color="#CC3333">MP3 raises</font>, <font color="#CC3333">CO 3-bets</font>, Button calls, <font color="#CC3333">SB caps</font>, <font color="green">Hero...?</font>

The table has not been crazy...