"I tried to leave but she wouldn't let me go. Then Mrs. Norris came in, and we ran out. I decided to sneak into Ravenclaw Tower to see what she did at night. Earlier she had told me she fingered herself in her sleep. So I went to the party and stunned Looney Luna."
It was audacious what she had done, but the prospect of watching Emma stick her fingers inside herself was too exciting to pass on! Astoria hoped Daphne would approve of what she had done. Her big sister's approval meant a lot to her, even if she did try to show her sister up, from time to time.
"Taking her dress, I put it on and transfigured my clothes into a mask. In this disguise I entered Ravenclaw Tower and Emma's dorm...where I watched her do as she had told me she did to herself. It was...wonderful. But I forgot the mask that was really my clothes in my haste to escape before caught."
Surely her sister would understand! Escape was more important then clothes. Astoria could always get more clothes. Agreeing with Daphne, her sister would have made a better Captain then the new girl.
"Daphne!" she exclaimed, shocked. "It wouldn't have been proper, and you know how I am. I cannot go further...then a certain point. I just can't."