"Don't tempt me to take points away from Gryffindor..." Narcissa replied, effecting the sour attitude and persona of Madame Pince. More than a few times they had nearly been caught snogging in the library by her, and they were pretty certain that the Librarian knew about them. The Black girl knelt behind her restrained girlfriend and gripped her shaft, preparing to fuck her for the first time like this.