Hermione had already decided blackmailing Narcissa by threatening to expose her full role in collaborating with the dark lord and his forces to the Ministry would be enough to get her back to Hogwarts when the time came. Having both sisters to play with would be such fun. Hermione let out a small groan of pleasure as she felt her cunt pulse with desire though a small wave of shame crashed over her soon after at the idea she was going to enjoy indulging in something so wicked and nasty.