Haha so this is a one shot idea I found on Pinterest and I just HAD to write! So please, enjoy!
"And remember. No students out of bed at night or you will be sure to get a detention!" McGonagall said to all the Gryffindors before they were going to their common room. Sadly, there were numberless students who broke this rule and McGonagall knew she would have to enforce it. Sirius grinned at his best friend James and then at the other two Marauders. "Challenge accepted," he whispered to James.
The four of them (James, Sirius, Peter and Remus) were all in their beds. Each of them also held their wands in their hands. The plan was about to action.
James grinned and started it off. "Wingardium Leviosa!" He said. The others repeated after them, their wands pointing to their beds.
The beds zoomed out of their rooms, and out of the Gryffindor Common room.
The Marauders were laughing. McGonagall specifically said to not "get out of bed," which meant they weren't breaking any rules. They were still technically in their beds. James, Peter, Remus and Sirius all sat on top of their beds, laughing as they zoomed through the halls of Hogwarts. Several teachers were awaken by the commotion and came out into the halls. When McGonagall saw she merely sighed. The slightest of smiles came to her face. Just leave it to the Marauders to find loopholes in everything, she thought.