Flopped set on a monotone board

[SUfan5]

Villain is unknown. I'm just curious as to my line so far and how you would proceed on the turn.

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP ($77.80)
CO ($66.90)
Hero ($62.85)
SB ($16.35)
BB ($49)
UTG ($25.15)

Preflop: Hero is Button with 7[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">MP raises to $1</font>, <font color="#666666">1 fold</font>, Hero calls $1, <font color="#CC3333">SB raises to $3</font>, <font color="#666666">1 fold</font>, MP calls $2, Hero calls $2.

Flop: ($9.50) 7[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, MP checks, <font color="#CC3333">Hero bets $10</font>, SB folds, MP calls $10.

Turn: ($29.50) 5[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">MP bets $10</font>, Hero ...