For Cal. I love your crack!ship
BillyxNate
He was the first one that Nate found. He had run into him, literally, one morning as he was rushing to school. They had both gone toppling to the ground, and, like something out of a cheesy movie, he had ended up halfway straddling the confused boy. They had jumped apart, blushing and apologizing, before Nate had asked his name.
He should have known that something was up when the stranger's eyes grew wide and he was asked to skip school to discuss some important business with the guy he had just randomly run into. The second clue should have been when Nate had no idea what pizza was. Third, when he tried to pay with this weird coin until he had pretended it was a joke and payed for it himself.
Out of all of the options on what his problem was, time traveler looking to recruit him for a new iteration of the Avengers was probably the best.
They had parted ways later that day with a promise to meet up after he got out of school the next day. There were a few butterflies in his stomach when Nate gave him that small thankful smile as he walked off, but nothing too serious. They were all hiding because his parents were going to kill him when he got home.
It took him an hour to convince his parents to not ground him for skipping school. There was a foreigner who had gotten lost, and by the time everything had been sorted out he was across town and school was an hour from being over. It was never going to happen again. Honest! His parents probably thought it was a shitty excuse, but he didn't smell like drugs or alcohol, and wasn't hurt, so they let it slide.
He met with Nate after school everyday for the next week. While Nate knew who was on the list of recruits, he had no idea how to approach them. So they had worked on twenty-first century etiquette and social norms. That's when he had let it slip that he just wasn't into the fairer sex. Nate let it slip that he didn't really have any luck with girls. He asked if Nate wanted to grab some dinner or catch a movie or something sometime. Surprisingly, he agreed.
They were never an official couple or anything. They would grab dinner, go see a movie, make out in the dark, and other couple things, but they knew it wasn't going to last. Not when Nate started to crush on one of the new guys, Eli, and he on Teddy. The other two were clueless at first, and while Nate got over his, he started to officially date Teddy.
And while they weren't 'together' together, they were still a team, still close. Even when Nate had to leave, he still came back. Came back to save him, not Cassie, not Eli, him. And while he did love Teddy with every fiber of his being, just like Nate loved Cassie, the two of them would always have something special. Something that couldn't be defined by standard relationships. And when Teddy and Cassie were out doing some team bonding, they would stay behind to do some bonding of their own.