Dearest Seeester,

As you may know, tomorrow marks our 21st year together as identical twins. In homage of this milestone, I invite you on a trip down memory lane, through the years of laughter, friendship and occasional sibling rivalry that formed our unshakable sisterhood. Not going to lie, we put the Ya-Ya Sisterhood and Olson twins to shame.

Ever since our earliest days together in the womb, our life has been – to say the least – crowded. We shared everything, and when I say everything, that is no exaggeration.

We never even had our own bedroom until college, so, as you know, privacy was a luxury we never experienced.

But, although we shared clothes, toys and even friends, we were inseparable.

We were rambunctious children: when we weren’t digging our way under the fence to escape the confines of our preschool, we were running aimlessly through the woods in our backyard, climbing trees and spending hours-on-end watching and reenacting Disney movies, especially our favorite: “Bambi.”

In addition to our uncanny resemblance, we also share a bizarre health condition: somnambulism, otherwise known as sleepwalking. This affliction has plagued our existence since birth, causing pandemonium and haunting embarrassment at numerous sleepovers and family vacations. It wouldn’t be too far off to say that our sleepwalking incidents rival those in the movie “Step Brothers.” One episode in particular resulted in your close encounter with public urination (please don’t hate me).

During our high school years, everyone knew us for two things.

One: being blonde, identical twins with fluorescent white skin.

Two: our loud and proud arrival to school in the morning, blasting favorites like Daddy Yankee, Ludacris and Missy Elliott in our Buick LeSabre, while rapping every lyric in perfect sync. This only goes to show our sense of humor was anything but ordinary.

You even won the coveted title of class clown in the yearbook our senior year, to no one’s surprise.

We also share, and flaunt, a borderline addiction to fluffy critters, particularly kittens and bunnies. Our Facebook wall-to-wall is a testament to our furball obsession.

Prior to leaving for college, we had only spent a grand total of one week apart from each other.

This made our transition to college all the more difficult, since you chose to flee Wisconsin in search of greener pastures … in Ohio?

Thanks to your baffling choice of university, the distance between us was unbearable.

Luckily, we both transferred to Marquette, where we can continue to bewilder people with our identical features and freakish twin powers on a daily basis (sorry everyone). And even though we both had reservations about attending the same university, it turned out to be even better than living at home together because, this time, we get our own bedroom.

Honestly, I’m pleasantly surprised we’ve made it this far, enduring the days of matching dresses, endless lame twin puns (“double trouble”) and constant double-takes followed by the inevitable “… Wait, which one are you?” and “Hey, you look like someone I know.”

Sometimes, I don’t know what I would do without you, especially when I need honest advice about tackling major life decisions, like choosing the perfect Spirit Hood and whether or not I should skip class.

But in all seriousness, you’ve actually saved my life a couple of times. Whether I was blissfully unaware of walking into traffic, foolishly poking a poisonous jellyfish or swimming too far out in a lake, you’ve always had my back.

When people ask me what it’s like to have a twin, I answer confidently: “It’s like having your best friend as your sister.”

What I’m trying to say is, I’m really glad our egg split in two. You mean more to me than you know. You are my best friend, other half and partner-in-crime.

Cheers to our 21st; I can’t imagine sharing it with anyone other than you.

Love you always, twinny,

Allie