Weird Spot w/ KK--->Semi-bluff all-in

[Finwe]

I've been playing lag, no reads on villain. I didn't believe his limpRR PF was AA for one second. I think he was tired of me raising everyone [img]/images/graemlins/wink.gif[/img] I nearly reraised him PF but decided to take a flop. Spewage or good semi-bluff?

No-Limit Hold'em, $2 BB (6 handed) FTR converter on zerodivide.cx

saw flop|<font color="#C00000">saw showdown</font>

BB ($149.85)
<font color="#C00000">UTG Villain ($206.85)</font>
MP ($131.55)
CO ($136.60)
Button ($37.05)
<font color="#C00000">Hero ($185.40)</font>

Preflop: Hero is SB with K[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/spade.gif[/img].
UTG Villain calls $2, <font color="#666666">2 folds</font>, Button calls $2, <font color="#CC3333">Hero raises to $10</font>, <font color="#666666">1 fold</font>, <font color="#CC3333">UTG Villain raises to $18</font>, Button folds, Hero calls $8.

Flop: ($40) A[img]/images/graemlins/spade.gif[/img], 8[img]/images/graemlins/spade.gif[/img], T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Villain bets $40</font>, <font color="#CC3333">Hero raises to $167.4 (All-in)