QQ with undercards on flop

[Poker_Ace]

No read on Villian. 45/23 over 25 hands. Obviously, I was fooled by the flat call pre-flop.

Poker Stars - No Limit Hold'em Cash Game - $1/$2 Blinds - 8 Players - (LegoPoker HH Converter)

SB: $141.50
BB: $185.95
UTG: $268.00
UTG+1: $119.45
MP1: $176.00
Hero (MP2): $526.80
CO: $358.00
BTN: $162.15

Preflop: Hero is dealt Q[img]/images/graemlins/heart.gif[/img] Q[img]/images/graemlins/spade.gif[/img] (8 Players)
UTG calls $2.00, 2 folds, <font color="red">Hero raises to $10.00</font>, CO folds, BTN calls $10.00, 3 folds

Flop: ($25) J[img]/images/graemlins/diamond.gif[/img] 3[img]/images/graemlins/spade.gif[/img] 7[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">Hero bets $23.00</font>, <font color="red">BTN raises to $46.00</font>, <font color="red">Hero raises all-in to $516.80</font>, BTN calls all-in for $106.15
Uncalled bet of $364.65 returned to Hero

Turn: ($329.30) 4[img]/images/graemlins/heart.gif[/img] (2 Players - 2 All-In)

River: ($329.30) 4[img]/images/graemlins/spade.gif[/img] (2 Players - 2 All-In)

Pot Size: $329.30 ($3 Rake)

BTN had K[img]/images/graemlins/spade.gif[/img] K[img]/images/graemlins/club.gif[/img] (two pair, Kings and Fours) and WON (+$164.15)
Hero had Q[img]/images/graemlins/heart.gif[/img] Q[img]/images/graemlins/spade.gif[/img] (two pair, Queens and Fours) and LOST (-$162.15)