[Harry Potter] A Dark Dawn

Sirius: Vicky, there's something I want to tell you. Victoria: Then say it quickly. I have to go follow James and Lily on their date. Sirius: ...I've fallen in love with someone. Victoria: Oh? Who? Sirius: Someone with the surname Potter... Victoria: Potter? Wait! You can't be in love with my dad! He and my mum are inseparable! Sirius: Wait! What are you thinking? Why would I be interested in Mr. Potter? Victoria: You said their surname is Potter... Could it be James? Give it up. His true love is Lily. Sirius: ...I like women! Victoria: ...Then is it my mum? Sirius: ... Did it never occur to you that it might be you, Victoria Potter? The heroine is an original character, a girl who dotes on her younger brother. Her pairing is Sirius, and the story follows canon, so there are plenty of heartbreaking moments, too (looks up at the sky).