"So, you want to help me with that Potions homework?"
"No! Write your essays yourself."
He leaned across the table and smiled the most charming smile he could manage. "Oh, come on, Louisa," he pleaded.
The girl shook her head. "No," she said simply and went back to her book.
Sirius gave up and leaned back in his chair. "You're always reading. Anyone would think you found History of Magic interesting."
Louisa looked up. "I do, actually." She gave him a lopsided smile and turned her attention back to the passage she was reading.
Sirius scoffed. "You really are boring, Brown. You know, not even Moony finds History of Magic interesting. And that's Moony I'm talking about! Remus is always working."
"And why is that a bad thing?" the young, brown-haired man said, taking the seat beside Louisa and smiling. "At least I'm not always in detention. Unlike some..."
"Huh! Well at least I have some fun." A look of realisation flitted across Black's face and he turned his attention to Remus, smiling once more.
"You fancy giving me a hand with that essay on...rats' spleen or whatever it was?"
Lupin laughed. "No, I don't! And it might be a good idea to find out what the essay's actually about before you start writing it."
Sirius sighed. "You two are as bad as each other," he mock-despaired. "Always together, never willing to lend a hand to poor, old me. When I fail my exams, it'll all be on your heads. Just remember that!"
Louisa and Remus laughed. Lupin reached over and placed a comforting hand on Black's shoulder. "It's okay, Padfoot," he said. "When you fail your exams and can't get a job, I'll let you live with me. You can have the attic."
Sirius pulled his arm away. "Oh, very funny, Moony, very witty." He shot an annoyed look at his friends and reached into his bag for his book and spare parchment. "I'd better get started then," he said, flourishing his quill. "I couldn't stand living with you, Moony, it'd drive me insane!"