Forbidden Cigarettes | Severus Snape X Reader

Two teens with broken pasts, what's the worse that can happen? Severus Snape and y/n y/l/n form a bond over cigarettes and alcohol, it's all unicorns and rainbows until they one day get caught. What happens after that? Will the duo ever make amends? Will the dark and brooding professor ever end up with his highschool...