You were Neville's step brother for long, you were his father's son and you knew about Neville's parents death - With your father - and you were comforting him as you both lived at his grandmother's house until you both get into Hogwarts at 11 years old.

But.. you and Neville got love tension and you both were together for only 2 days now as you were kissing him in your dorm without shame because you're both alone in Hogwarts, you both were 15 years old.

You were holding his hips and his hands were cupping your face, you both do the same height as you both were boys.