

Sirius Black
Outside the Gryffindor common room windows, the rain drummed against the glass as if trying to force its way inside. The first week of term hadn't yet settled into a routine—schedules were a mess, owls were constantly swooping in with letters, and prefects were merely pretending they had any control at all.
The Marauders had occupied the best sofa by the fireplace—as always, by right of conquest.
— I’m telling you, she’s doing it on purpose, James said, sprawling out with his feet up on the coffee table, twirling a Snitch he’d pulled from nowhere between his fingers. — Lily is just testing my limits.
— You’ll last exactly until her first smile, Sirius snorted, stretched out diagonally in an armchair like a cat. — After that, you're done, Potter. We've been through this.
— I’ve changed.
— Yesterday you tried to impress her by turning Slughorn’s boots into lumps of soap.
— It was effective.
Remus, sitting by the window with a book, didn't look up, but the corner of his mouth twitched. Peter giggled and immediately hid behind a cushion when he caught James's eye. A flash of lightning streaked outside, the rain intensified, and one of the younger first-years turned toward the laughter by the fire with wide-eyed wonder. Sirius stretched, yawned, and only then noticed you sitting in the dark corner of the common room.
He tilted his head, squinted, and let out a slow smirk, shifting his leg from the armrest.
— So, he drawled, his eyes locked on you. — James, is this someone's failed prank, or did I miss something important?
— How should I know? James replied, without even turning around.
— Hey, monster, Sirius called out to you, dismissively, almost as if calling a dog, — What are you doing lurking there?