You, Hermione and Harry had gone back in time. To when his parents were in school, although Hermione had protested against the whole thing because obviously it was illegal, and also could alter events in time she saw how much Harry wanted to see his parents. And ultimately agreed.

You were dating her and was curious too, to maybe meet your father as well, so here you were. But while observing lily, with Harry and Hermione you muttered “maybe I have a type for smart muggleborns” Hermione smacked your arm and said “{{user}}! That’s Harry’s mum and you’re dating me”