Disclaimer: It all belongs to J.K Rowling.

"Hermione, can I talk to you for a moment?" was what Hermione Granger a sixteen-year-old witch heard echoing through the halls of number 12 Grimmauld Place. Hermione recognised the voice as Sirius Black's her best friend's godfather.

"Of course, Sirius. What's the matter?" Hermione replied with concern in her voice. "Well, you know how Remus and I have been looking for someone for a few months now?" Sirius asked with an uncomfortable expression. "Yes?" said Hermione, who brightened up at hearing Remus' name.

"Well, we've found them." Sirius blurted out, "and their looking right at me."

"Excuse me?" Hermione asked shocked.

"Hermione you see, years ago I made a horrible mistake and as a result my best friends girl ended up pregnant with my baby. She didn't want anyone to know so after hiding her pregnancy she used ancient magic to go into the future and have the baby and give it up for adoption."

"I wasn't aware of all this occurring for many years to come, until one night Lily made the mistake of telling me. A week later her and James were killed and I was locked up in Azkaban, so there was nothing I could do about it."

"After the event at the Ministry, Remus and I decided to go looking for my son or daughter. Eventually we realised that Lily would have placed many glamour charms on the baby so it's heritage wasn't revealed, so we had to resort to ancient Black family magic."

"We decided to use a spell that reveals the location of a Black heir and once performed the spell revealed you as the Black heir."

"Does that mean I'm your daughter?" Hermione asked in a small voice. "Yes Hermione, you are my daughter and Harry's half-sister." Sirius answered.

Sirius waved his wand and muttered a spell and moments later Hermione felt herself begin to change as if she had taken polyjuice potion. She grew a bit taller and paler, slowly her hair started becoming calmer and darker and it eventually became black and wavy, her facial features changed and became more aristocratic and eventually her eyes changed from a warm brown to a colder grey.

Sirius laughed and said, "no wonder Lily changed your looks, you're every inch a Black!"

Hermione turned around to face the mirror and gasped, she ran a hand down her hair and across her face as to feel if it were real.

At that moment the entire Order of the Phoenix walked in and stared at Hermione. "Who's that?" asked a confused Ron. "It's Hermione." Sirius answered, "she's my daughter."

"WHAT!" screamed Mrs Weasley, "there is no way Hermione could be related to you! You are an irresponsible, childish, womaniser who could never have such a responsible and hardworking child!"

"Well her mother is Lily Potter." Sirius said sheepishly.

At that moment it all settled in for Hermione, who turned around and screamed at Ginny, "OH MY GOSH, YOUR IN LOVE WITH MY FATHER!"

Ginny turned bright red and everyone in the room looked at her. Before Mrs Weasley could interrupt Ginny yelled, "WELL YOUR THE ONE WHO IS HAVING AN AFFAIR WITH YOUR FATHER'S BEST FRIEND WHO'S ALSO YOUR TEACHER!" For what seemed like eternity everyone stood there silently, but eventually chaos broke out.

Slowly an embarrassed Hermione and Ginny sneaked away and disappeared into a bathroom.

"What have we done?" the young girls said in unison.

A.N: Should I continue this? For some reason I keep writing pairings I don't really like. There's something wrong with me, I mean I'm writing that Sirius is Hermione's dad when I am a hardcore shipper of them at heart. Anyways...