Excited about having a new sister.

Hello Cats,
I am so excited that I will be moving in with my sister,Tunafish, in a few months. I have been told she would be a demon for the first few days and then she would start to warm up to me. I had a sister at one time but we both got adopted by different people. I hope I can mellow Tuna out because I have also been told that she is very active and that isn't a good thing for me because I am very lazy and playing might make me tired. Wow I just can't believe it in just a few months I will a new sister. I just hope my brother Harley will be ok I will be sad when I have to leave him. If I know my owner's mom ( my Nanna) she will get another one.