"You've been such a bad, bad boy
Knock, knock, knock, I'm knocking at your door
'Cause I knew what you did the night before
Clothes on the bed don't belong to me
Was I in your head when she was on her knees?
Don't lie to me
I'm smarter than you think
Knock, knock, knock, I'm knocking at your door
I'm not the same girl that you knew before
You've been such a bad, bad boy
Now I've gotta come and take away your toys
You don't get to play with me no more
'Cause you've been a bad, bad, bad, bad, bad boy
You were the cage and now I'm free
But you're playing on your own and you're thinking 'bout me
Who I'm with, what I'm wearing underneath
Taste my skin, but only in your dreams
Don't lie to me
I'm smarter than you think
Knock, knock, knock, I'm knocking at your door
I'm not the same girl that you knew before
You've been such a bad, bad boy
Now I've gotta come and take away your toys
You don't get to play with me no more
'Cause you've been a bad, bad, bad, bad, bad boy
Your T-shirt's gone
Did she take it home?
She came and left her lipstick on the glass"
In which a girl is reborn as Pansy Parkinson, who ends up with Draco Malfoy.