Was it the culmination of Hermione's mental corruption?

By the second day, Hermione was well into learning the eldrich tantric magic that her Professor Toxicity had provided that wonderful book on.

Hermione giggled like a maniac any time she referred to Toxicity as professor.

Hermione had left the bedroom several times but most of the doors in the building were locked, and the spells she had learned so far were of no use to open them. The kitchen was full of fast meals, and there were ingredients available if she wanted to make a complex meal, but for the time she had, microwave pizzas, cereal, and breakfast sandwiches were definitely sufficient.

Whenever Hermione left the bedroom, she wore the cyber-punk potions mask, but whenever she returned, she switched back to wearing the gasmask attached to the crystal hookah. The smoke from the hookah seemed to keep her mind open and her body horny. The best combination to learn tantric magic.

By now Hermione was a master of self-pleasure using the double dildo. As she progressed through the book she had added the use of butt plugs, anal beads, and using both ends of the double dong for double penetration. Every time she came, she was able to feel the magic accumulate in her runic tattoo. It was strange to have no access to her magical core, but she supposed that learning tantric magic in a body where that was the only magic allowed her to focus on the new material.

The book had her experiment with all sorts of things. Both magical and sexual. Hermione was suprised how good it felt to have weights hanging down from her labia rings while she fucked her ass with an extra long but slightly thinner dildo.

In terms of Magic, Hermione had learned an abundance of body transfiguration, and mental manipulation spells.

As she learned the runes from the book, the mind warping effects of the eldrich runes book became more and more ingrained. Just 3 days ago, Hermione would never have considered using ilicit substances, or using **** sex toys, but here she was not only accepting the corruption as a matter of course, but loving it.

In terms of mind arts, the very warping of her mind would provide an unbeatable defense. A Legilmancer entering her mind would find an unintelligible maze of impossibility. As for offensive techniques, the runes installed the spells in her mind. All she would need is the intent to use them on a person, and her magic would guide her.

This morning was the first time that Hermione had needed to refill the hookah. Now she was aware that the waxy mixture that it consumed was a combination of several magical potions ingredients as well as a concentrate of THC and certain psychotropics. "Hermione Granger nymphomaniac pothead... hee hee hee ha ha ha ha ha ha ha ha...heh heh." Hermione giggled like the madwoman she was quickly becoming. The simple act of doing something she considered naughty was enough to make her cum. Thinking about all the school rules she broke, she realized that she got a tremendous amount of pleasure every time she broke a rule. And pointing out to Ron and Harry that they were breaking the rule just heightened the pleasure. It's too bad that she never masturbated during those pleasure highs. If she had, she probably would have cum like a freight train.

As the second full day became night Hermione reached the section on tying her tantric magic to an eldrich patron. The book recommended the chaos god Slaanesh. It explained that Slaanesh focused on sexuality and pleasure as its primary sacriment.

When compared to some of the other potential patrons, this seemed quite reasonable. Blood and anger? Disease and rot? Random manipulation and backstabery? Green ooze and monsters? No thank you.

No, if Hermione had to choose a patron for her tantric magic, then it would definitely be Slaanesh. Hilariously, the ritual to accept Slaanesh as her patron was basically more masturbation in a ritual circle and the adoption of a wytch-name something that represented her approach to tantric magic. When Hermione completed the ritual late on her second full night, Slaanesh accepted her as an acolyte, and she felt the acceptance as she came and her new name bestowed upon her: Delerium. If someone had been watching they would have seen her eyes flash purple the moment the ritual was sucessful.

Once Hermione/Delirium was able to move after such an amazing orgasm, she went back to the desk and put on her hookah gas mask as she pulled down the dictionary.

Delirium:

1. an acutely disturbed state of mind that occurs in fever, intoxication, and other disorders.

2. wild excitement or ecstasy.

"Hmmm, lets go with number two."

So she continued her studies, continued getting high, and continued abusing the fuck out of her borrowed pussy.

During the third day she learned that one of the strong points of tantric magic is body manipulation/transfiguration. She was able to play with Toxicity's body. The body started with DD-Cup breasts, Hermione/Delerium had messed with the tits, growing them into an absurd sized R-Cup and playing with them for an extended period.

The R cups were fun, but getting clothes that fit would not be. Hermione/Delirium brought them back down to a fake looking EE-cup and had proven herself able to change other parts of the body, including her face, hair colors etc. When she arrived, she arrived in a body that had blonde hair and purple streaks. Hermione/Delerium cast a tantric spell, and suddenly the hair was hermione's normal bushy brown hair. Then she cast it again and she suddenly had a shaved head but for a red mohawk. Then she cast it again, and a full head of hair was back with all the hair neon purple with length down to her ass, and black streaks running the length.

Then invoking Slaanesh, Delirium/Hermione was able to begin manipulation of her clit. It was a hell of a thing to watch her clit start growing while she had her favorite double dong still in her cunt. As the clit reached 5 inches long, the clit ring would now be called a prince albert. As she reached 8 inches long she lost her mind in a fury of self-pleasure anal and vaginal penetration with the double dong, while whacking off on a futa cock was crazy fun.

The cock was fun, but for Delirium/Hermione, it mostly just got in the way. Handy to create it when needed, but it was a distraction from learning and her cunt.

Late on the third night Delirium/Hermione was taking a break from the studies as a pizza cooked and she lounged on the couch in the living area trying out the portible bong from the desk drawer. Just two days ago, she rejected using the bong because she felt it was naughty something that she, a good girl, wouldn't do. Now as she sat on the couch, wearing nothing but a black pvc cupless corset, purple thigh high pvc boots, black studded wristbands and a black studded collar, she sat working the double dildo in and out of her cunt, pausing only to re-light the bong on the table and take a deep toke. The naughtyness was the very reason that she used it.

Delirium now craved being a bad girl. Specifically, she wanted to do all the things she was taught not to do as a good girl.

Fuck authority, Fuck the laws, Fuck the Ministry, Fuck the prudes, and Fuck her cunt!

Then much to her suprise, a door which had been locked all week clicked repeatedly before the door opened...