WTF, this guy does it again

Party Poker 1/2 Hold'em (6 max, 6 handed) FTR converter on zerodivide.cx

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

Flop: (13 SB) J[img]/images/graemlins/club.gif[/img], Q[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">MP raises</font>, Button calls, <font color="#CC3333">Hero 3-bets</font>, MP calls, Button calls.

Turn: (11 BB) 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, MP calls, <font color="#CC3333">Button raises</font>, MP calls.

River: (16 BB) 5[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
MP checks, <font color="#CC3333">Button bets</font>, MP calls.

Final Pot: 18 BB

Results
Hero has Ks Kc (two pair, kings and fours).
MP has 6s Jh (two pair, jacks and fours).
Button has 4h 7h (three of a kind, fours).
Outcome: Button wins 18 BB.

(I was all in after the Turn call)

Everytime this guy got lucky. I hate him. Capping with 74s and beating KK with it.