Okay, I wasn't planning on revealing who Apple's father was just yet.. But I'm getting as bored as you are not saying it. I'm surprised we haven't worked it out yet.

Time flew, and soon it was June. I sat on a rock in the grounds. My life was changing. I wasn't sure what to think anymore. Suddenly Ron went flying past, followed by Harry and Hermione.
'What the...' I said, getting up and running after them.
We stopped at the Whomping Willow. Ron leapt and seemed to have caught something.
'Harry Hermione Apple, Run!' yelled Ron, pointing behind us.
We spun round.
'It's the Grim!' said Ron as we looked at a shaggy dog.
The dog barked and bounded towards us. It leapt over us and headed for Ron.
'Ron!' I yelled.
My feet seemed to have a mind of their own as they ran, dodging branches and after the dog and Ron into the whomping willow. I chased them up the stairs and into the room. I faced the dog.
'I think you know me.' I said quietly.
It changed, into a man.
'I want the full truth! All of it!' I said, wand pointed at Sirius Black. 'Who I am, who my mum is, and why I've been raised up by Romulus!'
'Okay. You deserve to know. Your real name is Apple Remus Lilac Sirius Black, my daughter and god-daugher to Remus Lupin. Your mother was called Lilac Smith, and you were raised by Romulus because I was sent to Azkaban for supposedly murdering Peter and your mother. But I didn't. I would never kill Liliac, I would never purposely leave you alone. You're my baby girl, I would never want to do anything to hurt you in anyway.' said Sirius.
I believed him. Part of me wanted to, even if his story had made no sense. I smiled, and Sirius, sorry, Dad, took that as a green light and rushed over and hugged me. I nestled my head into his shirt, tears leaking out.
'I've never stopped thinking about you.' he said, stroking my hair.