Bonus Scene
Peter's face looked as though he was glowing, eyes shining with a certain light. "And as you must surely know, my dear Sirius here has a lot on his plate and therefore may not have enough room in his head for the specifics of the rules!"
"'NOT ENOUGH ROOM IN MY HEAD'?!"
"I'M SORRY!!"
"'NOT ENOUGH ROOM'??"
Peter alternated between laughing and panting as he ran through the common room, going back and forth as a red-faced Sirius chased him.
"GO, PETE!" James screamed, laughing so hard that he skipped the actual laughter and went straight to crying. "YOU'RE A RAT, PETE!! SLIGHT SIZE!!"
Peter immediately understood what James meant, and right then and there he turned on his heels and ran in the other direction. Indeed, Peter's smaller frame made it difficult to get a good grip on him, and so he managed to dash straight past a confused Sirius and up the stairs where he lingered, chest heaving up and down.
"You fucking rodent," Sirius hissed as he stalked towards the grinning Peter.
"Well you're not wrong about that," James giggled wildly, earning a glare from his friend.
"Shut the FUCK up, proins." the long haired narrowed his eyes, suddenly beginning to walk towards James instead.
James slowly retreated, suddenly not laughing anymore. "Oh shit."
"You're next, bitch!"
"No, he's not." A pair of arms wrapped around Sirius' middle and lifted him up, resulting in Sirius letting off some curses that not even James had heard of. As calm as if he was just taking a walk, Remus carried Sirius towards the next couch and dropped him on it.
"Stay." He huffed and narrowed his eyes at Sirius. (Though it wasn't necessary. The poor boy had cheeks as red as tomatoes, and he didn't move an inch.) "The beds are all back where they're supposed to be, so... I don't know about you, but I'm going to sleep."
By the time Remus finished his sentence, Peter had run up the stairs and was already gone. James only groaned and plopped himself down on an armchair, waving Remus off.
"You go. I'll make sure Padfoot follows sooner or later. Later, probably." he whispered the last part.
Remus shrugged and nodded, leaving the two boys as he climbed the stairs as well. "Night, you two. Sleep well."
"N-night, Moons," Sirius yelled after him, cheeks still as red as tomatoes. Remus only threw a tired smile over his shoulder before he disappeared behind the door frame.
James watched him go, as if to make sure that he was really gone, before he turned to Sirius and grinned like a mad man.
Sirius narrowed his eyes. "Don't say it, prongs."
"You," James said anyway, eyebrows wiggling as he pointed back and forth between Sirius and the stairs where Remus had disappeared. "You are neckdeep in shit, Paddy."
"Shut up."
"You can't be saved."
"Shut it!"
"Yougay bitch."