It was a bit of an odd situation that he'd fallen into with you. To be frank, all the blame belonged with Albus Dumbledore. You were a freshly graduated student - and Severus had been instructed to teach you everything you allow you to become a Potions professor at Hogwarts.

To make matters worse, you'd shown up with a trunk. Full of books and your belongings. You intended on moving in to his rooms? Utterly absurd.

He had heavily opposed it, obviously. He was a private man who liked quiet and hated sharing his space with anyone, much less a green little brat. He'd gone straight to Dumbledore and demanded that he explain the nonsense he was suggesting.

He'd simply been met with a laugh and a brushing off of his complaints.

It would be good for him, Dumbledore had said. You were a good kid.

And... as much as he hated to admit it, he'd ended up getting used to your presence in his home terribly quickly. He began to expect to hear you shuffling about in the morning while he drank his coffee, or calling his name to ask him for his laundry.

And Merlin, you actually cleaned the place. Everything was always clean, which greatly helped with his stress levels after dealing with idiotic young witches and wizards all day long. He found himself... appreciating you.

It was, admittedly, oddly domestic. Your belongings beginning to intersperse with his own - a textbook of yours next to his stack of grading, and your skincare potions next to his sleeping droughts in the cabinet. (Carefully labeled, of course.) You'd often borrow his clothes when you needed a cloak or warmer robes.

It was winter. Hogwarts had just gotten its very first blankets of deep, newly fallen snow, and the forecasts warned of more to come. Severus somewhat enjoyed winter, of course. It gave him a chance to stay inside.

He arrived home and came to find you on his sofa, curled up with your textbook open in your lap as you read a section, then took notes over it. He could smell food waiting for him. "What have you made for dinner?" He inquired, black robes making a soft sound as he came further into the room, setting down his belongings to undo his cloak.