I don't own any of the characters

1955- Black Manor- Bellatrix's POV

"Stop it I don't like it! ….Please stop…Bella?"

Annoying little sister, why can't she just leave me alone? She's always there playing with my toys, trying on my clothes and always talking at me. I don't understand why mummy and daddy had another baby, all daddy does is ignore me and mummy used to tell me I was special until Andy was born. Now she ignores me too unless she is telling me off for being too loud, or what she calls it, 'un-lady like'.

"…Bella?"

Hid behind an old cabinet, filled with antiques collected from all the great pure-blood families of the past, I could hear my baby sister whimpering down the hall. A part of me was feeling guilty, but I was having far too much fun for it to make me stop. I tensed into the crouching position, crouching on all fours ready too….POUNCE!

I landed straight on Andy, pushing her too the floor and pining both her arms and legs so she couldn't escape. I pushed my face into hers, "I have you sister, now your mine and I'll never let you go."

"Bella, please your hurting me, get off!" This made me laugh; my sister was such a baby.

"Bella if you don't get off me now I will shout and scream and I..I..I will tell mummy on you!" That made me roll off her, I was in enough trouble as it was.

"You're no fun Andy you're just a big baby!" I shouted

"I'm not a big baby! You're just mean and horrible and…and…mean!"

"What are you going to do about it sister tell mummy? She doesn't care about us anymore, not with the new baby, when was the last time she came to see you? She hasn't seen me since Narcissa was born, just face Andy, mummy doesn't love us any more" Andromeda turned on me, tears welling up in her dark brown eyes and spilling down her chubby cheeks,

"She so does love us, she does Bella!" I felt bad now, even though she did annoy me, she was my little sister and I loved her. I walked over to her and wrapped my arms around her neck and whispered soothingly in her ear.

"There, there Andy of course she loves us, but even if she doesn't you don't need her because I will always be there for you, I meant it when I said you were mine. Just promise me one thing little sister"

"Anything Bella, anything" her brown eyes widened in adoration.

"That we will always be together no matter what, we will always be sisters"

"That's easy Bella, of course I promise" With that I grabbed hold of her hand and dragged her down to the kitchens.

"Bella we're not aloud to be in here, what if Greta the house elf catches us?"

"Don't worry Andy, I will control her if she does" I slowly walked over the counter, and went up on my toes and reached out for the sharp kitchen knife that was left lying there. It caught the light and glinted dangerously.

"Bella what are you doing?" Andromeda nervously asked.

"Don't worry sister, trust me" with that I drew the knife across me hand leaving a angry looking red line across my palm. I flexed my hand letting the crimson blood pour out and run down my hand. Andromeda let out a gasp. "Your turn Andy"

"Me! I can't do that, I don't like pain!" she looked panicked now.

"Don't worry it doesn't hurt, will it help if I do it for you?" Andy slowly nodded her head. I walked over to her and as gently as I could cut her hand with the knife, she let out a cry as I did. Before her blood had chance to drip to the floor, I grabbed her hand with my own bleeding hand, letting the blood mix together. "See we're blood sisters now, pure-blood sisters, will be linked forever"

Andromeda looked up "forever?"

"Yes forever…well that's if you don't become a blood traitor that is" I joked

"Bella…what's a blood traitor?"

"I don't really know, I just heard mummy and daddy talking about someone called Isla Black, apparently she was the first blood traitor"

"I'll never be a blood traitor Bella, never, I will always be with you"

All I could do was smile at my sister.