QQ on K high Board - Contibet anyone?

[Go_BroKe]

Full Tilt Poker - No Limit Hold'em Cash Game - $0.10/$0.25 Blinds - 6 Players - (LegoPoker HH Converter)

<font color="black">Hero (SB): $27.05</font>
BB: $44.35
UTG: $48.05
MP: $47.40
CO: $21.95
BTN: $38.55

<font color="black">Preflop:</font> Hero is dealt Q[img]/images/graemlins/club.gif[/img] Q[img]/images/graemlins/heart.gif[/img] (6 Players)
UTG folds, <font color="red">MP raises to $1.00</font>, 2 folds, <font color="red">Hero raises to $3.50</font>, BB folds, MP calls $2.50

<font color="black">Flop:</font> ($7.25) 3[img]/images/graemlins/club.gif[/img] 8[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets $5.00</font>
Pot Size: $17.25 ($0.85 Rake)


villian is unknown

is this a standard continuation bet?