AK NL 50

[Rounder101]

Full Tilt No-Limit Hold'em, $0.50 BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

MP ($56.05)
Button ($50)
SB ($60.55)
BB ($59.60)
Hero ($60.70)

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

Flop: ($4.75) 7[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $3.5</font>, <font color="#CC3333">Button raises to $10</font>, Hero??

Im going through this hand that happened about 2 days ago, dont remember knowing villain.
What I dislike here is that if I raise, Im absolutely commited to calling a shove that would probably be a set. If I flat call, and get bet into on the turn, it is gonna be too tough, and there are tons of scarecards there that could hit.
Thoughts please.