Prompt - Cigarette
Don't Smoke
Barty smelt the smoke before he even saw Regulus.
He walked into the Astronomy Tower, finding Regulus sitting with his back against the wall, a white stick between his fingers.
"What are you doing?!
Regulus' eyes opened slowly and he withdrew the stick, before blowing out some smoke.
"Having a fag," he replied.
"You seem to know what you're doing," Barty pointed out.
"Well, I've watched Sirius smoke enough," Regulus replied.
Barty glared at the cigarette for a moment before plucking it from Regulus' fingers. "Well, you're not Sirius," he pointed out. "Don't smoke, Reg."
Reg let out a small sigh. "Fine," he replied with a smile.