KQ middle two pair facing a raise

[CourtesyFlush]

Here's a KQ hand I feel I really misplayed...button in this hand seemed pretty tight, I put him on a strong hand to call my raise and I thought he had an Ace on the flop when he called my bet. How is my play so far this hand, and how should I deal with the turn raise?


Party Poker No-Limit Hold'em, $ BB (6 max, 6 handed) converter

Button ($139.98)
SB ($92.35)
BB ($227.1)
UTG ($105.65)
Hero ($212.3)
CO ($53.67)

Preflop: Hero is MP with Q[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/heart.gif[/img]. SB posts a blind of $0.5.
UTG calls $1, <font color="#CC3333">Hero raises to $5</font>, <font color="#666666">1 fold</font>, Button calls $5, <font color="#666666">1 fold</font>, BB calls $4, UTG folds.

Flop: ($16.50) Q[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/diamond.gif[/img], 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, <font color="#CC3333">Hero bets $10</font>, Button calls $10, BB calls $10.

Turn: ($46.50) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, <font color="#CC3333">Hero bets $20</font>, <font color="#CC3333">Button raises to $40</font>, BB folds, Hero ??