She becomes a happy slut for them

With every pounding, no matter the hole, Hermione’s hunger for cock grows. She manages to stay awake longer and longer between fuckings, and as more and more taboos are shattered, she’s steadily broken in and broken down. Eventually, the purebloods recognize that she no longer tries to escape, so they take her down from her typical spot and let her roam the dorm freely. She pleasures them 24/7 without complaint, despite how poorly they treat her.

Like any good slut, she needs to be trained a bit more. The Slytherins experiment with depriving her of the only thing she cares about anymore for days on end: sex. Allowed to wander the dorms nude, but with a chastity curse preventing her from even trying to get a student to bang her, she eventually begs Draco to remove the curse and allow her to have sex again. “Please, Draco, just let me suck one cock, one toe! I’ll do anything, just let me please you!”

Draco eventually relieves Hermione of her chastity, and she blissfully returns to being the house’s plaything. Whenever she resists or hesitates to do what any of them say, they threaten her with another bout of chastity. Without fail, Hermione makes sure to avoid such punishment, and as a consequence she becomes much more willing to do more and more depraved things for her masters.