I still remember the first time Professor Harlan kept me after class. It was late fall, the kind of gray afternoon when the campus emptied early and the old lecture hall smelled like chalk and rain. I was twenty-two, finishing my senior year, and I had convinced myself the crush was harmless. Then he asked me to stay and discuss my paper, his voice low and steady, and something shifted in the air between us.
We talked about the essay for maybe ten minutes. Then the conversation drifted. He leaned against his desk, arms crossed, watching me with those dark eyes that always seemed to see more than they should. I admitted I had been distracted in his seminars. He asked why. I told him the truth without meaning to: because I could not stop imagining what it would feel like to have his hands on me.
He did not smile. He simply locked the door.
What happened next was not gentle. He pulled me against him and kissed me like he had been waiting months for permission. His mouth was hot and demanding, teeth scraping my lower lip until I gasped. His hands slid under my sweater, palms rough from years of grading papers, and he cupped my breasts through my bra, thumbs circling my nipples until they ached. I was already wet, embarrassingly so, and when he pushed my jeans down my hips he groaned at the sight of the damp spot on my underwear.
He bent me over his desk. The wood was cool against my bare stomach.

He took his time, spreading me open with his fingers, commenting in that same calm professor voice on how soaked I was, how tight I felt around two of his fingers. When he finally pushed inside me, it was slow and deep, each thrust deliberate. I came hard, biting my own wrist to stay quiet, while he held my hips and told me I was doing so well, that I was his favorite student in every way that mattered.
After that, the lessons changed.
We met twice a week in his office once the building cleared. Sometimes he made me read aloud from the texts we studied while he knelt between my legs and licked me until my voice shook. Other times he bent me over the arm of his couch and fucked me from behind, one hand fisted in my hair, the other reaching around to rub my clit in tight circles until I sobbed his name. He liked to hear me beg. He liked even more when I told him exactly what I wanted in crude detail: how I needed his cock, how I wanted him to fill me up, how I thought about him during every lecture.
One rainy Thursday he kept me after a department meeting. He locked the door again and made me strip while he watched from his chair. I stood naked in the middle of the room, nipples tight from the cool air, thighs already slick. He told me to touch myself. I did, two fingers sliding over my clit while he praised every sound I made. When I was close he stopped me, pulled me onto his lap, and guided his cock into me. I rode him slowly at first, then harder when he gripped my ass and told me to take what I needed. He came deep inside me, and I followed seconds later, clenching around him so tightly he cursed.
We never talked about what would happen after graduation. We did not need to. The secrecy was part of the heat. I learned how he liked his cock sucked, slow and wet, with my eyes on his. He learned how I trembled when he spanked me lightly before sliding into me from behind. On the last day of the semester he took me in the empty classroom one final time, bent over the same desk where it started. He fucked me until I was shaking, then turned me around and kissed me softly, almost tenderly, while his fingers brought me off one last time.
I walked out of that building with his come still inside me and the knowledge that some lessons never really end. They simply change shape.