We aren't blood related
But we care more than sister.
We were always together in ups and downs of life,
We aren't complete when there is missing of us.
We are different but we share the same thoughts and
goals in life.
They say we're lucky to have each other
Wishing they have one too.
There are times we argue about things,
Misunderstood each other,
And reach to that point  
that we want each other free
But you know what is that thing
that binds us together?
The misery we feel,
The worry of losing someone,
The one who knows our flaws but still worry of leaving us behind.