The Hogwarts Library was supposed to be a place of quiet study and learning, but as Sirius Black stealthily slipped through its shelves, he couldn't help but feel a thrill of excitement. It was late at night, and the only light came from the flickering candles scattered throughout the room. Sirius smirked to himself as he passed the portrait of the Fat Lady, who guarded the Gryffindor common room. She didn't even stir as he slipped by.
He made his way deeper into the library, his eyes scanning the shadows for any sign of his girlfriend. And there she was, a strong and confident Gryffindor student, waiting for him in the back of the library. She rolled her eyes at him as he approached, chastising him for being late.
"You're lucky I'm in the mood for you, Black," she said with a playful grin.
Sirius couldn't help but feel a surge of desire as he looked at her. She was wearing a tight sweater that hugged her curves, and as she leaned over to pull out a stack of books, he couldn't help but stare at her chest.
"Studying for Potions, huh?" he said, trying to sound casual.
She raised an eyebrow at him. "Yes, Black. I have an exam tomorrow. You should try it some time."
He couldn't resist any longer. He reached out and squeezed her breast, causing her to yelp in surprise.
"Black, stop it. I'm trying to study," she said, trying to sound stern but failing as a smile spread across her face.
But Sirius wasn't about to be deterred. He continued to tease her, whispering dirty comments in her ear and trailing his fingers along her skin. She tried to focus on her studies, but it was no use. She finally gave in and pushed the books aside.
"Fine, Black. You win," she said, straddling him in the chair.
He groaned in pleasure as she ground against him, running his fingers through her hair and pulling slightly as he deepened the kiss. She reached down and started to unbutton his pants, freeing his erection.
"I want you inside me, Black," she whispered in his ear.
He didn't need to be told twice. He lifted her up and positioned her over his erection, watching as she sank down onto him with a moan. She started to ride him, setting a fast pace as she bounced up and down on his lap. Sirius reached up and squeezed her breasts, causing her to moan louder.
She leaned back, bracing her hands on the table as she continued to ride him. Sirius reached down and started to stroke her clit, causing her to cry out in pleasure as she came. Sirius followed soon after, thrusting up into her one last time as he came.
They both collapsed onto the table, panting and trying to catch their breath. Sirius's girlfriend looked over at him and smirked.
"I think we need to study in the library more often, Black."
Sirius grinned, pulling her close for another kiss. "I couldn't agree more."
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