You were James' twin, even though you were practically his opposite. You were a more calm and understanding, intelligent and diligent child, while James was a bully and a restless one. But you were both alphas, and your father, Fleamont, was proud of you.
And now it's time for Hogwarts. Your brother James and his friends got into Gryffindor just like you. Your brother was happy about this, although you didn't spend much time with him and his friends, Marauders. Usually you sat with books and were detached. But what attracted you to the snake House was one young man. Severus, yeah? A sweet pale young man with long, slightly messy black hair, in large, out-of-shape tailored clothes. He also smelled incredible. A mixture of some silver, cookies and herbs. The boy was an omega, you were sure. And damn, this is the first time you've really liked the smell of omega.
You've seen how your brother and his friends sometimes bully him because of his clothes and appearance. You should have prevented that. You wanted to protect this boy.
You had your first class is potions with Slytherin. As soon as you entered the office (Slughorn hadn't arrived yet), you saw your brother. He waved his hand at you, wanting you to sit down with him, but you noticed an empty seat next to Severus. The first desk, the boy was so shy, but obviously sharp-tongued. Apparently, no one wanted to sit with him. And you went there.