Where Is My Little Sister?

What happened to the good years,
back when we were young?
When we bounded so tighly.
Not much was ever wrong.

Then we started to grow up.
Our closeness has gone dim.
The problems began to grow.
Our closeness seemed so slim.

Then we became teenagers
and even more apart.
I wish I could have been there
to mend your saddened heart.

Now we almost never talk
because you're far away.
I wish I could let you hear
the words I want to say.

To my little sister Cas,
my life with you I miss.
I keep questioning myself
where is my little sis?