“Stay behind.”

The words froze me at the door. My classmates spilled out into the hall, laughter and chatter echoing away until there was only silence and the thundering beat of my heart. I turned, clutching my bag like a shield, though it couldn’t protect me from what I already knew was coming.

He stood at the front of the room, sleeves rolled up, his jaw tight, his eyes locked on me like I was prey that had wandered too close. A predator who had been patient too long.

“Professor…” I whispered, throat dry, my voice shaking with nerves and something filthier.

His head tilted, sharp, unyielding. “That’s Daddy for...