The classroom smelled of chalk and old wood, the last student having left minutes ago. Professor Harlan locked the door with a deliberate click, his eyes fixed on Lena where she stood by her desk, 19 and trembling in her short skirt.
"You've been teasing me all semester," he said, voice low and edged with command. "Now it's time to pay."
Lena's breath caught. She backed up until her hips hit the desk. "Professor, I didn't mean"
"Quiet." He crossed the room in three strides, grabbing her wrist and spinning her around. His body pressed hard against hers, pinning her face-down over the wooden surface. One hand yanked her skirt up, the other gripping the back of her neck, forcing her cheek against the cool wood. "You wanted this. Your short little skirts, the way you stared."
She struggled, but his strength was absolute. Fingers hooked into her panties and tore them down her thighs. Cool air hit her exposed skin before his palm landed sharp on one cheek, then the other, the sting blooming into heat. Lena gasped, the sound turning into a whimper as he spread her open, inspecting her.
"You're wet already," he growled. "Filthy girl."
He freed himself, thick and hard, and rubbed the head along her slit without mercy. Lena tried to twist away, but he thrust forward in one brutal motion, burying himself deep. The stretch burned, her body clenching around the invasion. He didn't pause. He fucked her with hard, punishing strokes, each one driving her hips into the desk edge. One hand stayed on her neck; the other reached under to pinch her clit, twisting until she cried out.
"Take it," he ordered. "This is what happens when you play games with your teacher."
Lena's protests melted into broken moans as the rhythm built. Pain and unwanted pleasure twisted together, her walls fluttering despite her mind's resistance. Harlan leaned over her, teeth scraping her ear. "You're going to come on my cock whether you want to or not."
He changed angle, hitting that spot inside her again and again. Her legs shook. The orgasm hit like a wave she couldn't stop, her inner muscles pulsing around him, milking him as she bit her lip to stay quiet. Harlan groaned, pace turning savage, until he buried himself to the hilt and filled her with hot pulses of release.
He stayed inside her for long seconds, breathing ragged against her back. When he finally pulled out, he didn't release her neck. Instead he pushed two fingers into her used cunt, scooping their mixed fluids and bringing them to her lips.
"Clean them," he said darkly. "And remember who owns this now."
Lena opened her mouth, tasting salt and surrender. The power exchange settled over her like a second skin. She knew this wouldn't be the last time the locked door clicked shut.