Monday is blue. Tuesday is brown. Wednesday is black. Thursday is grey. Friday is much more exciting; Friday is argyle . Every single week, without fail, Sehun wears a white business shirt and a different colored sweater vest for each day. Blue, brown, black, grey, and argyle. The sequence of which these are worn is never changed. Baekhyun wonders if Sehun wears the same shirt everyday. Probably not. He wonders how many of that exact shirt he has. He likes to imagine an entire walk-in closet filled with crisp and clean white button ups. The thought makes him laugh. 

He didn’t notice this little pattern until the third week of working together. In the second week, he thought it was just a coincidence. When Monday of the third week came rolling around and Sehun was clad in that blue knit sweater vest, Baekhyun knew Sehun had to be doing it on purpose. Not that he was at all surprised. Everything Sehun does is predictable, formulaic . It isn’t a bad thing; it makes him reliable. Their bosses absolutely love it.  Sehun lives his life to be as efficient as possible and Baekhyun thinks it’s one of his many charming qualities since it makes their job a hell of a lot easier. 

Some people call it creepy, the fact that he pays attention to such small details about his coworker such as what he wears everyday or how and when he takes his coffee. Black, no sugar or anything and always at eight a.m. when he first arrives and then another mug after lunch. 

And by some people he means Kyungsoo, which is totally unfair since Kyungsoo practically disapproves of anything Baekhyun does just for the fun of it. Baekhyun, on the other hand, would like to think of himself as...observant. He enjoys people watching and since he and Sehun are the executive assistants to the co-CEOs of Kim Publishing and have the entire tenth floor to themselves, save for CEOs’ offices of course, he is forced to watch the only person sitting across from him. 

Sehun’s fingers glide across the keyboard quickly and smoothly, never having to click the backspace key even once. After Baekhyun finishes typing up his weekly report for Junmyeon, he props his head up with his hands and stares over at his co-worker until he notices. He never does. He crumples up a pink- because yellow is boring, but of course that’s the only color Sehun uses- sticky note and tosses onto Sehun’s desk. Sehun finally stops typing to look over at him, clearly surprised although not showing it much on his face. 

“Have you ever thought about wearing a black shirt before?”

Sehun looks down at his clothes. “I’ve worn black shirts before. You’ve seen me in one, at the hotel.”

Oh yes. The glorious black t-shirt and grey sweatpants. Baekhyun remembers it very, very well. Maybe a little too well. His throat suddenly feels parched. 

“I meant to work, Sehun,” he chuckles. “Like a black business shirt instead of the one you always wear.” <