Flop a set, too aggro? (Stars 50NL)

[sticking hands]

Haven't played in a while, so I'm admittedly rusty. The Villain this time is VPIP/AF 53/infinite. As played, was I too aggressive with the re-raise? I put him on a king, but was fearful of the flush draw. Am I jumping at shadows, or should I have waited till a later street to try to stack him?

PokerStars No-Limit Hold'em, $0.50 BB (6 handed) handconverter.com

UTG ($110.50)
Hero ($53.95)
CO ($20)
Button ($54.40)
SB ($135.75)
BB ($50)

Preflop: Hero is MP with 2[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/spade.gif[/img].
<font color="#666666">1 fold</font>, Hero calls $0.50, <font color="#CC3333">CO raises to $1</font>, <font color="#666666">1 fold</font>, SB calls $0.75, <font color="#666666">1 fold</font>, Hero calls $0.50.

Flop: ($3.50) K[img]/images/graemlins/heart.gif[/img], 2[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">SB bets $4.5</font>, <font color="#CC3333">Hero raises to $10</font>, CO folds, <font color="#CC3333">SB raises to $15.5</font>, <font color="#CC3333">Hero raises to $52.95</font>, SB folds.

Final Pot: $71.95