I write a lot on here about my dear, beloved friends, who are like my sisters. We talk constantly, see each other whenever possible and are as close as friends can be.

But I am also lucky enough to have an actual sister; She has appeared many times on here throughout the years, and although we don’t get to see each other as often as we would like, my kids adore her.

My sister and I are completely different. She is a stong, driven athlete and fiercely independent. She is an award winning journalist and her resume is extremely impressive. She is a vegetarian, a runner and she does not like to talk about her feelings.

But, the thing is, there are these things–these sister things–that outweigh all of the differences.

For there is no one else on this earth with whom I can discuss TV shows and characters and storylines like I can with my sister.

(Side note: As I am typing this, she just asked me if I had watched a certain reality TV show on Bravo.)

We have inside jokes that no one else would understand, and when we sing together, our voices resonate in perfect harmony. That is because we are sisters.

There are just some sister things. I can’t explain them. They just are.

 Last evening I got a song stuck in my head, but really, it was just about a measure of a song, one to which I knew not a single lyric, but I felt like I had heard it recently and knew that the only person who could  possibly help me was my sister. So I called her and said, “I have this song in my head and I have no idea who sings it but I think it is from a TV show or a movie and it goes something like this.” And sang a few “Dun dun dun dun dun dun dun dun”s to her.

“It’s ‘Take Me to Church’ by Hozier,” she said, instantly.

There was not a second of hesitation. I ran to my computer and to YouTube and sure enough, she was spot on.

She couldn’t tell me where I had heard it recently, and then it hit me: It was from Tom Schwartz’s Instagram.

Fitting that this mystery song came from the social media feed of a Bravo network celebrity, or “Bravolebrity”, as they say.

But I don’t take it for granted, the sister thing, because as different as we may be, we also share something that I do not share with anyone else.

We look alike. Our voices are hard to tell apart on the phone. She was the first person I told when I found out I was pregnant with my son and she was the first person to take my daughter for a pedicure just this past weekend.

She knows things that no one else will ever know.

I may not always understand my sister, as we speak different life languages, but will always get each others’ melodies.

I always love her. I love her an incredible amount. And I know that the feeling is mutual.

I will always support her.

I will always be her number one fan.

And she will always be the person I call when I can’t figure out a song, when I can only come up with three notes.

Because she can figure it out for me.

Because it’s a sister thing.