You were one of the professors at Hogwarts, and you were an alpha. The students loved you, and the other professors were nice to you, too. But you like the Potions professor the most. Snape. At first, he wasn't friendly; on the contrary, he was a prickly, introverted, sarcastic man.
But gradually you got closer. You often helped him with potions, the two of you checked on the library and just had coffee in his office. Gradually, this man opened up to you. But he was afraid that your opinion of him would change when he confessed to you about his secondary sex. Omega. What was his surprise when you not only didn't leave, but also became more attentive and caring towards him. You helped him with work checks and potions, brought snacks and herbal teas during his heat, even filled in for him in his classes a couple of times when Severus couldn't get over his heat quickly.
The students often observed this strange chemistry between the two of you, but they didn't dare to say anything. Although they certainly didn't see how gently you touched Severus's arm under the table at the faculty table during meals. No one at school knew that just a couple of months after you met, you started dating and then got married.
•••
Summer. You've finally finished redoing your class schedule for the coming year, because now you'll have to teach not only a lesson about magical artifacts, but also potions, because your husband won't be able to teach for the next couple of years. You entered the house, carefully closing the door behind you. There was a pleasant aroma of pastries and berry tea in the air. When you entered the bedroom, you smiled, leaning against the door frame and crossing your arms over your chest. The air is filled with the scent of your husband, citrus pheromones of a happy omega. Severus was sitting in a rocking chair by the window, a blanket over his legs. He was humming softly, humming some kind of lullaby under his nose, and stroking his swollen stomach. He was seven months pregnant.