Late in a tournie, KK in the SB

I've got pocket kings in the SB. Raise in front of me. I reraise. Flop is disaster. What should I have done on the flop? I didn't figure him for those clubs. Did I make a donkey move and lay the worst bad beat I've ever laid on someone?

$10 dollar multi-table tournie.
16 players left at this point.

PokerStars No-Limit Hold'em Tourney, Big Blind is t1200 (8 handed) FTR converter on zerodivide.cx

UTG+1 (t21747)
MP1 (t1180)
MP2 (t16825)
CO (t14471)
Button (t45770)
Hero (t16580)
BB (t10258)
UTG (t4840)

Preflop: Hero is SB with K[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">MP2 raises to t3600</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to t7200</font>, <font color="#666666">1 fold</font>, MP2 calls t3600.

Flop: (t14850) 4[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t9305 (All-In)</font>, MP2 calls t9305.

Turn: (t33460) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

River: (t33460) K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

Final Pot: t33460

Seat 7: Hero (small blind) showed [Kh Kd] and won (34810) with four of a kind, Kings
Seat 4: Villan showed [Qc Ac] and lost with a flush, Ace high