So, I'm on a huge Soulmate AU fic kick right now, so I figured I would try my hand at writing one! Combine that with my obession with Hamilton, and you've got this fic (which I may or may not have written the majority of at work. Shhhh, don't tell!).

Notes: Soulmate AU where people have the first words their Soulmate will say to them written somewhere on their bodies. It is considered very taboo to show your Mark to anyone

Before the ice, before he slept for those 70 long years, Steve had always wondered about his Words. Why was his future soulmate mistaking him for someone else? Who was Aaron Burr? When he later learned about Aaron Burr in school (an American politician, the third Vice President of the United States), he wondered why on Earth his soulmate would mistake him for the historic figure.

When he came out of the ice, he was shocked and relieved to discover that his words were still scrawled down his leg. That meant his soulmate was still alive. It maybe even meant they had been in this time all along. It meant there was someone out there waiting for him. Those thoughts got him through his first few weeks in the strange, new world he suddenly found himself in.

It wasn't until four years later that he got a true lead on what his SoulMark might mean. Apparently it was a line from an extremely popular musical…

Darcy let out a sound that was half sigh, half groan, and half something else. No, wait, that was too many halves. She slumped into her desk chair, too exhausted to care. She had finally gotten Jane to go to bed after having been up for almost three days straight. Seriously, how that girl Scienced so hard was beyond her. But that was probably why Jane was the astrophysicist and Darcy was the Scientist Wrangler, for lack of a better title at the moment.

Still, she hadn't even had to resort to some of her more elaborate threats tonight. As soon as she had switched Jane over to decaf coffee, it had been lights out in under an hour! Granted, she had had to enlist Natasha's help in getting Jane back to her room (she was heavier then she looked!), but at least she had gotten some good blackmail worthy pictures out of the situation.

Normally once Jane had been taken care of, that was Darcy's cue to go to bed. But not tonight. The lab was just too much of a disaster for her to go to bed in good conscious. It got that way when Jane was Sciencing extra hard like she had been on this last binge. When she finally returned to the lab after a good 12 hours or so of sleep, Darcy wanted it to be in good shape. So, clean first, then sleep.

Struggling to sit up straight, she knew the only way she was going to accomplish the first part of her goal was to put on some really good music. Groping around for her iPod (which SHIELD had finally returned to her, and which Tony had modified and upgraded for her), she wasted no time in selecting her latest musical obsession: Hamilton. The familiar beat had never failed to energize her before; she didn't expect it to fail her now!

Steve strode down the somewhat familiar halls of the Science wing of the Avengers' Tower. It was early, barely even dawn, but Tony had apparently gotten a surge of inspiration during the night and wanted to show him his latest gadget. No one else on the floor was even in yet; all the other labs were pitch black. That is, except one. And it wasn't Tony's lab. His lab took up its own floor (and that was still three floors above this one, Steve would come to find out). So who else would be here this early?

Deciding he had enough time to investigate, Steve poked his head through the door. It looked like whoever was here was in the middle of a cleaning spree; the right half of the lab was neatly organized, while the left side was a riot of discarded machines, haphazard stacks of papers, and whiteboards covered with formulas that he had no hope of understanding. And in the center of it all, slumped across one of the tables, head pillowed on one arm, was a brunette woman who was fast asleep.

Steve approached her quietly, noting that he had seen her around the Tower a few times, but had never been officially introduced to her. When he had seen her, she was usually with Dr. Jane Foster, Thor's dame. Maybe this was Dr. Foster's lab then? Figuring he might as well wake her up - falling asleep at a desk was not fun - he gently placed a hand on her shoulder.

The dame must have been a very light sleeper, or was just on the verge of waking up, because she shot straight up at the sudden weight and warmth of someone else's hand on her shoulder. "Pardon me, are you Aaron Burr, Sir?" she croaked out groggily, one hand coming up to push her hair out of her face, the other going to pull some earbuds from her ears. Half turning, she blinked sleepily up at Steve, as though trying to figure out who he was, why he was in her lab, and why he was interrupting her sleep.

The movements of her hands drew his attention to the iPod in the circle of her arms, and his enhanced hearing picked up a very familiar melody. But that was all pushed to the back of his mind, because she had just spoken his Words! A lopsided grin formed on his face as he happily declared, "I understood that reference!"

Darcy stared up at the stranger - the very very hot stranger - her sleep muddled mind still struggling to catch up. Blond hair, the bluest eyes, muscles for days… "Hey, you're a Hamilton fan!" was the first thing she thought to say, followed quickly by, "Wait, those were my...you're my Soulmate!"

"Both are true," Steve said, glancing down again at her iPod. He could still hear the music that was coming from it; Helpless had just started playing, which was a little perfect, given the situation.

You walked in

And my heart went boom

Her Soulmate was right in front her! That was enough to chase the sleepy cobwebs from her mind. She had only been waiting her whole life for her Words to be spoken out loud, to finally figure out their meaning, to finally meet her Soulmate, to get to know them, and -

"Holy crap, you're Captain - "

"Steve," Steve interrupted, chuckling at the look on her face. It was adorable. "I mean, yes, I am him too, but my name is Steve. Steve Rogers. And you are…?"

"Darcy Lewis: Scientist Wrangling Expert, and She Who Tased Thor. Did he ever tell you that story?"

"No, he did not," Steve said slowly. His Soulmate - Darcy - had tased Thor?! "I have to hear that story now, though. How about you tell it to me over coffee? Do you like coffee?" Man, did he have a whole list of questions for her now. 90 years worth of questions.

"Do I like coffee?" Darcy echoed with a snort. "I can't live without it. I'd take the stuff via an IV if I could!" She got off her stool, smiling up at Steve as she held out her hand. "Come on then, Best of Men."

Steve didn't even hesitate to take her hand, and something seemed to click into place as their fingers twined together. They had only taken a few steps towards the door when, "I understood that reference too!"

A month later Steve surprised Darcy with tickets to Hamilton. For how much they both loved the soundtrack, neither one had actually seen it on Broadway. Later, when they had been invited backstage, it was hard to tell who was more star struck: the cast or the couple.