Chapter Text
Theo Raeken-McCall was about as much of an asshole as a teenage boy could be. Liam had learned from years of torment from him that he was and always would be an asshole, despite losing his entire family in the span of a night from a car crash. Regardless of the accident, Liam had thoughts of strangling the other boy frequently. Theo was eight when it happened, it was obvious that Theo would be taken in by either the McCalls or Stilinskis. But the debate was almost immediately quashed when Claudia started to fall ill.
Theo moved in with the McCalls a week before his ninth birthday freshly signed adoption papers framed on the kitchen island. The official papers didn’t seem to matter much when Theo was already part of their little family. When Stiles was able to, between being with his sick mother or helping his dad around the house as best as he could. He would be at the McCall house, chasing Theo and Scott around the yard, even when they both started wheezing from both laughter and mutual issues of asthma attacks. Theo still had the bad days when he didn’t want to get out of his new bed and leave his freshly painted room. No matter how much Scott or Melissa coaxed him.
But as the time went on Theo’s bad days became far and few in between. Stiles spent more time with them when Claudia died, not wanting to go home to his face his father’s drinking issues. They joked about getting bunk beds so they could all have sleepovers in the same room. They piled blankets and sleeping bags in the living room and pretended to have campouts. After the actual camp out in the backyard that ended in the boys screaming and waking up nearly half the neighborhood when they swore up and down there had been a set of glowing eyes near their tent. Theo grew up along Scott and Stiles, the three boys wreaking havoc as they went. The neighborhood used to the laughter and screams that accompanied them where they went. As they grew older, the three spent less time playing make-believe about supernatural creatures in the backyard and more time in the McCall house basement playing video games or being subjected to Stiles’ Star Wars marathons.
When they hit middle school, Melissa and John standing by their cars s the three boys had insisted, Theo didn’t have most of the same classes that Scott and Stiles shared. It led him to make friends with somewhat outcasts Tracy and Josh who he shared his first-period class with, it started out just because he didn’t have his brother or best friend, but then out of real enjoyment when he found he shared many hobbies and interest the pair had. Scott and Stiles stuck together, but Theo started to branch out, much to Melissa’s delight at finally having a young girl as one of her children’s friends when she had been raising two boys by herself.
Middle school came and went and Theo, Stiles, and Scott became high schoolers. Melissa had cried the night before while on the phone with Jonh asking how her boys had grown up so fast, and how they needed to stop. Theo still had Tracy and Josh. Stiles and Scott had each other. Due to Stiles’ clumsiness and total lack of bodily control, he’d nearly caused Lydia Martin to fall down a set of stairs, for some unknown reason, she joined Scott and Stiles’ ragtag crew, later joined by Kira and Malia. And Liam and Mason the next year.
Theo’s own group extended when they became sophomores and Tracy decided Hayden was going to be their new friend. Hayden had reluctantly become their friend, more out of curiosity of Josh and Tracy’s constant bickering then real interest in friendship. Corey came next, jumpy and skittish at first. The Theo, Scott, and Stiles trio had dissolved more or less, leaving the two groups. Liam didn’t know all that much about Theo when he first started hanging out with Scott, other than he was his brother. But he quickly learned that Theo was a massive jerk.