So someone explain how not to double up a bigger overpair here...

[ThePortuguee]

Six max, Pokerstars 100NL. I have Q[img]/images/graemlins/heart.gif[/img]Q[img]/images/graemlins/spade.gif[/img] in the BB. Villain has $81, and opens UTG to $5. I cover. Fold to me and I call.

Flop ($10): 6[img]/images/graemlins/spade.gif[/img]2[img]/images/graemlins/heart.gif[/img]7[img]/images/graemlins/diamond.gif[/img]
I check and villain bets $12.

What's your plan here? Assuming overcards to your queens don't come, do you ever avoid doublig up AA or KK? Do you tend to lead the flop?