The university was an Ivy League nightmare of stone buildings and impossible expectations. I’d transferred in as a junior, moving across the country when my mother married Richard Voss, a retired surgeon who thought that his daughter—the brilliant Dr. Sloane Voss, tenure-track at twenty-nine—would be a “wonderful academic mentor” for his new stepdaughter.
He had no idea.
Sloane had hated me on sight. At the wedding, she’d looked me up and down and said, “I teach organic chemistry. I doubt you’ll need my help.” Then she’d walked away, her black dress swishing, her blonde hair pinned in a bun that looked like a threat.
She was my stepsister. Technically. Her father had married my mother. We shared a house on holidays, a bathroom at family dinners, and a silence that was heavier than any textbook.
Then I enrolled in her class.
Organic Chemistry 302. Monday, Wednesday, Friday. 200 students in a lecture hall, but Sloane’s eyes always found me in the third row. She called on me when I wasn’t raising my hand. She critiqued my lab reports with a precision that felt personal. And when the midterm came back, I’d gotten a D.
Her office hours were 3 to 5 PM on Thursdays. I showed up at 6:15, after the last student had left, after the departmental assistant had gone home, after the hallway lights had dimmed to a security setting that made everything look like a film noir.
The door was unlocked.
“You gave me a D on the midterm,” I said, perching on the edge of her desk. I’d changed after class—white button-up, plaid skirt, tights that I’d deliberately snagged on the walk over. “I thought you said you’d help me pass.”
Sloane didn’t speak. She just looked at me from her leather chair, her glasses reflecting the desk lamp, her black turtleneck making her look like an intellectual assassin. Then she stood up. Walked around the desk. Stopped close enough that I could smell her—dark perfume, chalk dust, and something that smelled like power and want.
“Your door is unlocked,” I whispered, my voice barely audible. “Anyone could walk in. A student. The dean. Your father—my stepfather—who thinks we’re having a productive tutoring session right now.”
She reached out. Her hand was warm, slightly calloused from lab work, completely sure. She touched my chin, tilted my face up, and ran her thumb along my jawline with a patience that felt like she’d been imagining this since the day our parents said “I do.”
“This is wrong,” I breathed, though I didn’t move away. “You’re my—”
She put her finger on my lips. The touch was electric—soft, commanding, completely silent. She didn’t speak. Just held her finger there, her eyes locked on mine, telling me everything I needed to know without a single word.
The door handle turned.
We both froze. A knock—soft, hesitant, the sound of a student who wasn’t sure if the office was still occupied.
“Dr. Voss?” A girl’s voice. “I had a question about the midterm…”
Sloane didn’t panic. She just pressed her other hand against my chest, pushed me backward off the desk, and guided me into the supply closet—a narrow space between the bookshelf and the wall, filled with microscopes, preserved specimens, and the smell of formaldehyde. She followed me in, pulled the door almost shut, and pressed her body against mine in the darkness.
“Come back tomorrow,” she called out, her voice perfectly steady, completely at odds with the hand that was already under my skirt, finding my underwear, sliding beneath the lace. “Office hours are over.”
“Oh, okay. Sorry!”
The footsteps retreated. The outer door closed. And Sloane turned to me in the darkness of the closet, her finger still pressed against my lips, her other hand inside me, moving with a precision that made my knees buckle.
“Quiet,” she whispered, her mouth against my ear. “The walls are thin. And I don’t want anyone to hear what I’m about to do to you.”
She used two fingers, pressing deep, curling to find the spot that made my vision blur. Her thumb circled my clit with a rhythm that was slow, devastating, completely controlled. She worked me like an experiment—observing every reaction, adjusting her pressure, noting every gasp and tremor with the same focus she brought to her research.
When I came, it was with her hand over my mouth, her fingers inside me, my back pressed against a shelf of glass beakers that rattled with the force of my shaking. She held me through it, her eyes locked on mine in the darkness, watching me fall apart with an expression that was part scientist, part predator, part completely devoted lover.
After, she fixed my skirt. Smoothed my shirt. Opened the closet door and walked back to her desk like nothing had happened.
“Your grade,” she said, picking up a red pen, “will be adjusted to a B. For now. Further… tutoring… may result in additional improvement.”
I got an A in the class. I also got Sloane. We meet in her office every Thursday at 6 PM. The door is always unlocked. The supply closet is always ready. And she still puts her finger on my lips whenever I try to speak, because some things don’t need words.
