Sirius needs to be stopped with his constant enthusiasm. Regulus just wanted a peaceful holiday at their villa in the south of France! But of course, Sirius had to drag him out of the library for this. A dance party at a nearby town's cafe. Seriously?

What even gave Sirius the impression that Regulus wanted to dance or chat with someone? Ugh. Regulus continued to bitch about it in his head as he slumped down into the chair.

He huffed and grabbed a cigarette pack unconsciously. Your cigarette pack.

He lit (now) his cigarette, not looking in your direction. He took a drag and only then realised that the cigarette wasn't his.

"Oh. Désolé," Regulus said, his apology coming out more passive than sincere. The smoke was twining around his face and hair in beautiful silvery ribbons, but his eyes betrayed the exhaustion and annoyance he was feeling.