Probably very basic KK question in big pot

[twolf]

Villian in this hand is very loose aggro, 60/7/2 after ~40 hands...

Party Poker No-Limit Hold'em, $ BB (10 handed) converter

MP3 ($52.85)
CO ($56.50)
Button ($115.55)
SB ($28.65)
BB ($39.77)
UTG ($64.25)
UTG+1 ($143.86)
UTG+2 ($89.70)
Hero ($66.15)
MP2 ($12)

Preflop: Hero is MP1 with K[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/club.gif[/img]. SB posts a blind of $0.25.
<font color="#CC3333">UTG raises to $2</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $8</font>, <font color="#666666">6 folds</font>, UTG calls $6.

Flop: ($16.75) 3[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/spade.gif[/img], 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
UTG checks, <font color="#CC3333">Hero bets $12</font>, UTG calls $12.

Turn: ($40.75) A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">UTG bets $10</font>, Hero takes some kind of action...