50NL- AK, TP, big pot OOP

[ajml]

Any ideas how, to go about this hand. My raise did nothing preflop and I really didnt want to play a big pot here, too late...

Villain is unknown
Comments on all streets welcome

Full Tilt Poker No-Limit Hold'em, $0.50 BB (5 handed) Hand History converter Courtesy of PokerZion.com

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

Button ($55.30)
SB ($65.35)
BB ($36)
<font color="#C00000">Hero ($50)</font>
<font color="#C00000">MP ($128.70)</font>

Preflop: Hero is UTG with A[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">Hero raises to $2</font>, MP calls $2, Button calls $2, <font color="#666666">1 fold</font>, BB calls $1.50.

Flop: ($8.25) 7[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/heart.gif[/img], T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(4 players)</font>
BB checks, <font color="#CC3333">Hero bets $6</font>, MP calls $6, Button folds, BB folds.

Turn: ($20.25) Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $12</font>, MP calls $12.

River: ($44.25) 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, MP checks.

Final Pot: $44.25

Also, what do you do if Villain bets the river here?