Miss Harper slammed the classroom door shut and locked it. "Strip. All of you. Pants and underwear down, bent over those desks. Now."
Three college seniors, all over eighteen and already hard from the threat in her voice, scrambled to obey. Jake, the ringleader, was first, shoving his jeans to his ankles and presenting a tight, pale ass. His cock swung heavy between his legs. Mike and Derek followed, cheeks flushing as their bare asses faced her.
She walked behind them slowly, the wooden paddle in her hand tapping her palm. "You three think you can jerk off in my class and get away with it? Think again." She swung the paddle hard across Jake's ass. The crack echoed. He grunted, ass cheeks clenching, a red stripe blooming instantly. "Count them, boys."
"One," Jake rasped.
She moved to Mike next, laying two quick, vicious strokes across both cheeks. His cock twitched and leaked onto the floor. "Two… three," he groaned.
Derek got the next one, the paddle landing square on his sit spot. He yelped and pushed his ass back for more. "Fuck… one."
Miss Harper didn't go easy. She worked methodically, spanking each boy in turn, the paddle landing with wet, meaty smacks that turned their asses deep red and welted. Sweat ran down their backs. Their cocks dripped steadily, untouched, as the pain and humiliation mixed into raw need. Jake's ass jiggled with every blow, the skin hot to the touch when she paused to rub it roughly.

"Look at you," she said, voice low and filthy. "Three grown men bent over with your asses out and your dicks leaking like whores. You love this, don't you?" She reached between Jake's legs and gave his balls a firm squeeze. He moaned and pushed back against her hand.
She set the paddle aside and used her bare hand for the next round, slapping hard and fast until their asses glowed. The sound filled the room: sharp smacks, heavy breathing, the occasional desperate whimper. When she slid two fingers along Jake's crack and pressed against his hole, he nearly came right there.
"Please, Miss Harper," he begged, voice raw. "Spank me harder. Punish my ass."
She obliged, delivering a flurry of stinging slaps that left him shaking. Then she moved to Mike and Derek, alternating between them until all three were marked and trembling. Their cocks throbbed visibly, balls drawn tight.
Finally she ordered them to stand. "Hands behind your backs. Don't touch." She stroked each cock once, slow and teasing, smearing precum over the heads. "Next time you misbehave, it'll be the cane. And you'll thank me for every stroke."
The boys left the room on shaky legs, asses burning, cocks aching for release they wouldn't get until they got home. Miss Harper smiled, already planning the next detention.