Clara's heels clicked against the hard tile floors of the school hallway. She was tired from another long day of teaching. Her hands were filled with a stack of papers she needed to grade, and her mind was filled with thoughts of the children she had grown to love.

As she entered her classroom, Clara let out a sigh of relief. The room was empty, save for the figure of the Doctor, who was hunched over her desk, polishing it with a cloth. He looked up as she entered, and a slow, mischievous smile spread across his face.

"Clara," he said, standing up and stretching his arms above his head. "I've been waiting for you."

Clara rolled her eyes. "What is it now, Doctor?" she asked, dropping her papers onto her desk and collapsing into her chair. She didn't have time for his fake caretaker antics.

The Doctor walked over to her, his eyes gleaming with excitement. "I've been thinking," he said, leaning against the desk and looking down at her. "About you and me. And I've come to a conclusion."

Clara raised an eyebrow. "Oh really?" she said, crossing her arms over her chest. "And what's that?"

The Doctor leaned in closer, his breath warm against her cheek. "That you need teaching a lesson too sometimes," he said, his voice low and growling with thick Scottish tones.

Clara's heart skipped a beat. She went to protest. But the Doctor was persistent. He leaned down and silenced her with a kiss, his lips soft and warm against hers. Clara's resolve melted away as she kissed him back, her hands reaching up to tangle in his grey hair.

The Doctor deepened the kiss, his tongue exploring Clara's mouth. She moaned softly, her body responding to his touch. She felt his hands on her waist, pulling her closer to him.

Suddenly, the Doctor broke the kiss and pulled away, a wicked gleam in his eye. "I want to show you something, Clara," he said, his voice husky with desire.

He grabbed her hand and led her to the front of the classroom, where he had set up a makeshift bondage scene. There was a desk with restraints attached to it, and a spreader bar on the floor.
Clara's eyes widened in surprise. "Doctor, what is this?" she asked, her voice trembling with excitement.

The Doctor smiled. "This is what I want to teach you, Clara," he hissed. Clara's heart raced as the Doctor helped her bend over the desk, securing her wrists and ankles with the restraints. She was completely at his mercy, and the thought made her wet with desire.

The Doctor ran his hands over Clara's body, his touch sending shivers down her spine. He teased her nipples through her blouse, pinching and twisting them until they were hard and sensitive.

Clara moaned, her hips bucking as the Doctor's hand traveled lower, slipping under her skirt and finding her wet pussy. He stroked her clit with his fingers, causing her to gasp with pleasure.
The Doctor continued to tease Clara, bringing her to the brink of orgasm only to pull back and leave her wanting more. She struggled against the restraints, her body begging for release.

Finally, the Doctor had had enough. He unzipped his pants and pulled out his hard cock, rubbing it against Clara's wet pussy. She moaned, her hips grinding against him, desperate for him to enter her.

The Doctor spanked Clara, the sound echoing through the empty classroom. She cried out, her body shaking with pleasure. He reacher beneath her skirt, grabbing her knickers in a fist and yanking them down. He spanked her again, harder this time, leaving a red mark on her soft skin.

Clara's cries grew louder, and the Doctor knew he had to silence her. He reached for a gag and slipped it into her mouth, silencing her moans and cries of pleasure.

With one swift thrust, the Doctor entered Clara from behind, filling her completely. She moaned, her body trembling with pleasure. He began to fuck her, hard and fast, his balls slapping against her ass with each thrust.

Clara's orgasm built inside her, growing stronger with each thrust of the Doctor's cock. She screamed into the gag, her body shaking with pleasure as she came hard, her pussy clenching around the Doctor's cock.

The Doctor continued to fuck Clara, his own orgasm building inside him. He groaned, his body tensing as he came, filling her pussy with his hot cum.

The Doctor pulled out of Clara, untying her restraints and helping her off the desk. She was trembling, her body still shaking with pleasure.

The Doctor smiled, his eyes gleaming with satisfaction. "I hope you learned something useful, Clara," he teased. Clara could only nod, her body still reeling from the intense orgasm. "Yes sir," she breathed out. He patted her on the ass. "Same time next week Miss Oswald," he whistled as he left.