I am 13 years older than my younger sister. She's my half sister too but I hate that term. We lived together till she was 6 so that probably helped early bonding. My Mum died when she was 9 so my older sister and I have raised her since. She lived with me from 12-16 and that was interesting as I had always tried to fight being maternal towards her due to the age gap as I wanted to 'just' be her sister but then I was in a situation of having to 'parent' her too... but I'm proud of all of us. We did really well.

I love her dearly and she is absolutely my sister... but I guess sometimes I had to make a more conscious choice to felt that way as it evolved differently with my other sister who is only 3 years older than me. I still have a different bond and closer friendship with my older sister- we relate really well. But that said, my younger sister is awesome too and I can still share my problems with her. I guess like any siblings I just have different relationships with both my sisters, age isn't really an issue.