Is this scared river play with KK? 2/4 FT

[QuietEarner]

Villain is 27/15/3 over 150 hands. Never saw him do anything super crazy.
METAGAME (maybe): I just typed in chat a couple hands before that I was leaving before the BB came back.

On the flop I just call knowing he is going to continue bet on turn. I was raising any non spade turn. (Thoughts on this)

Full Tilt 2/4 Hold'em (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is UTG with K[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/heart.gif[/img].
<font color="#CC3333">Hero raises</font>, <font color="#666666">4 folds</font>, BB calls.

Flop: (4.50 SB) 2[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">BB raises</font>, Hero calls.

Turn: (4.25 BB) 9[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets</font>, <font color="#CC3333">Hero raises</font>, BB calls.

River: (8.25 BB) Q[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero checks.

Final Pot: 8.25 BB