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You were sitting in the history of magic class, and for the umpteenth time, you were trying not to zone out. Your friend was also in the medicinal plants class and was completely far away from you and you didn't even have anyone to talk to, which made you want to hit your head on the table, but of course, you wouldn't do that in reality.
The Marauders happened to be sitting in the class at the same time as you, with the difference that they had each other, as usual. As you glanced at them, you noticed something strange or perhaps interesting; the Marauders were bent over a piece of paper and looked from time to time in the direction of your seat. But well, you didn't care and stared back at the ground.
When you were zoning out for about the fiftieth time, something light hit your head and fell on the ground next to your feet. A folded piece of paper. You sighed, took the paper - which looked like a note - and sat up straight. You opened it, and you were met with a note written in glimmering ink. You raised your eyebrows and read it
"You look sleepy today, pretty. Didn't you sleep last night?"
It was such a cheesy note. You looked around in surprise to see who could have sent this letter, and you saw Sirius, who winked at you.