Sisters are the best therapy.

Thank goodness for sisters.

Sisters make the best partners in crime.

My sister is my biggest cheerleader.

Stuck with her for life, and happy about it.

Sister, confidante, co-conspirator.

She was my first friend.

Happy Sister's Day to my forever friend.

Two peas in a pod.

My sister is my favourite shopping partner.

Sister date day.

Having a sister means always having a plus one.

Borrowed her sweater, never gave it back.

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

Sisters in style.

We shared a room. Now we share everything else.