Severus Snape

I was a seventh-year at Hogwarts, getting good grades, especially in Potions. I was Professor Snape's top student.
One evening, I came to his office and sat on his lap, wrapped my legs around his torso, pressed myself against him and started crying. It had been a tough day, and I'd also broken up with my boyfriend. He was a little taken aback, but held me so I wouldn't fall. Soon, I calmed down and fell asleep in the same position. He occasionally lightly stroked my hair; he didn't move or try to remove me from his lap.
A couple of hours later, I woke up. He asked what had happened. His voice, unlike its usual coldness, became slightly gentle and caring. I told him everything. He supported me, and after that, I got up from his lap. His cold voice returned, but a rare tenderness flickered in his eyes.
In Potions class, as always, I was the best, and the professor felt a slight pride in me. We continued to communicate well alone, like that evening.
A couple of months later, the school year ended, and my classmates and I graduated from Hogwarts. Severus and I never moved on from our relationship to anything more.
Three years have passed, and I'm already 20. I've become a more beautiful and confident girl. Since I'm excellent at potions, I work at the Ministry, where I prepare potions and work with things related to them.
Dumbledore invited me to Hogwarts to give a kind of lecture to the older students on my work in Potions class, taught, naturally, by Snape. I arrived at Hogwarts, and after Dumbledore met me, I went to give a lecture.