DISCLAIMER: Twilight is best princess and any teacher who performs the following actions should be defenestrated. :3

GRIMDARK Professor Cyric grunted as he thrust into Twilight, making sure to time each pump so that she could not get out a word uninterrupted. Twilight had a bit of a habit of being chatty while they fucked, to his great annoyance, and this particular topic most of all, so he had had to develop a solution to keep her somewhat quiet.

Her feeble attempts to converse with him soon fell flat as she fell forward, gripping his back and burying his head in her chest as he gripped her ass. He always made sure to get his cock all the way to the hilt; it kept her from talking overmuch, and her tight pussy was like a dream come true for a man well into his autumn years, so he made sure to enjoy it.

With a sigh, Cyric turned his eyes to his laptop, the grades for the semester ready to be uploaded to the system. He had gotten himself into an amusing situation, hadn’t he?

Truthfully, Cyric had never liked Twilight. At all. She was always so quick to answer every question he raised in class, always so assured when she spoke. She never let anyone else respond, and was always right, even on occasions when he himself had bungled the lesson plan. She would always stay late after class to pick his brain, and Cyric always lost an extra ten minutes at least entertaining her jargon-laden twattle as he struggled to keep his erection in check.

Twilight started moaning as he squirmed and twisted inside her, and she began to rock her hips in response before he slapped his hands on her ass to keep her still. She might try to pull off before he climaxed again, and Cyric would have no part in it.

It had been little things, at first. A right question scratched out here, a relevant discussion point ignored there. Part of the fun of being a professor was that, once you got tenure, what got accepted as passing or failing was entirely at your discretion, and the same went for the grades involved. But it did not take long for him to start having a bit more fun, especially when he discovered that passing this class was vital to Twilight’s graduation. Soon enough, she was getting D’s and F’s on every assignment she turned in, and her grades in the class dropped like a stone. Every time she turned in a paper she stared at him nervously, eyes bloodshot and baggy, and every time she received yet another failing grade she looked like she would cry. She asked him how she could improve, and he gave her advice that would make for an even worse paper next time. Watching a know it all sweat as her grades turned into garbage was such a delight.

Twilight struggled to move as she cranked her hips again, which Cyric accepted graciously before casually slipping his ring finger into her asshole. He knew how uncomfortable that made her, and her tearful gasp was like music to his ears. He knew that he disgusted her; she had probably never imagined she’d have to serve as a concubine for a man three times her age. If anything, that made it hotter.

It didn’t take Twilight long to approach him personally, as he was getting ready to go home for the night. The final project for the class was a research paper, conducted in two components, a presentation and a paper, and constituted 50% of the class grade. In typical fashion, Cyric had brutally dressed Twilight down for her failure of a presentation and had given her a 20% score for simply showing up.

Twilight was crying, weeping. She blubbered that this school was expensive, ridiculously so, and that even with loans, her working two jobs, and her parent’s assisstance, she could only afford the four years; if she failed this class she would not graduate, and if she did not graduate this year she would not get another chance. She begged him to go easy on her paper; she had come to realize he was grading her poorly on purpose but could do nothing to prove it. Twilight buckled at the knees before him, head bowed in abject terror as she clutched her hands. She sobbed that she would do anything to get her grade boosted, even if it was only up to a D-. D’s get degrees, after all.

Cyric had stared down at her, at her gorgeous purple hair. At her thick curves and huge breasts. A smile crossed his face as he had not smiled in decades.

“Anything, you say?”

A sudden horror had gripped Twilight…but she silently, tearfully nodded.

The first time had been rough going for the egghead; Cyric may have been old, but he was fit and strong, and enforced that strength on his latest project as he had pinned Twilight against the office walls, brutally fucking her throughout the night until she finally passed out. It took her a few sessions to get the hang of his temper, and for him to begin relaxing. It was never fun for her, he made sure of it, but at the very least she seemed to find his ministrations…tolerable, for the most part. It did not take long to make her give him blowjobs before classes, as he ensured she kept the load in her mouth for the entire time. And before long, she had turned in her paper, her final paper for grading.

Twilight shook on top of him as she felt his grip tighten. He was close….so very close…

Cyric glanced at the spreadsheet, watching the space where he would enter Twilight’s grade, the only grade he had not entered yet. If he posted it now, it would appear to the main office that Twilight had not turned in her paper, which would result in a zero. She would fail the class, and more than likely have to drop out. Her future plans would be ruined forever.

Cyric smiled, and pressed the space button three times while Twilight wasn’t looking. The space in the spreadsheet remained blank.

“All set, Twilight. A perfect 100.”

Twilight’s eyes gleamed happily as she stared down at him, not seeing the spreadsheet. “T-thank you…I promise…you won’t regret it…”

Twilight leaned down to kiss him, gripping the base of his dick and jerking it as he thrust into her. With a smile, Cyric pressed the button, uploading the spreadsheet to the school database. With a grunt, he climaxed, spilling ropes of hot seed into her belly as she screamed in pleasure.

School’s out for summer.