Sister, confidante, co-conspirator.

My sister, my twin in spirit.

Sisters share everything. Except the last cookie.

Nobody makes me laugh like my sister.

Sisters make life sweeter.

We're sisters. We share everything. Especially opinions.

Double trouble.

Sisters: built-in best friends.

Big sister, bigger heart.

Borrowed her sweater, never gave it back.

My sister, my secret keeper.

Sisterhood is the best hood.

Sisters in style.

Sisters: the family you get to keep forever.

Sisters at heart, even miles apart.