Josh Dun had a good life. His father worked, his mother was a great housewife and mom, and nobody yelled. Mr. Dun was the US ambassador, which meant a lot of family travel from embassy to embassy.
Tyler Joseph is a polar opposite. His dad was deadbeat that left, after beating his mom, and never looked back. His mom worked two jobs just to keep food on the table for him and his brothers, until she landed a job as personal assistant to Ambassador Dun.
Tyler and Josh were forced to spend a lot of time together, either creating a bond or simply ignoring each other. But the embassy they're staying at is infamous for its bad weather and freak storms. They get trapped. Josh and Tyler have two choices: continue their petty antics or find a way out.
Josh Dun is a delinquent who just got out of juvie.
If he doesn't get his act together, he'll go back. With no family to go to, Tyler Joseph's family volunteer to help him out and give him a good clean christian environment to stay in to help turn him around. Things don't go as planned when Josh seduces Tyler.
top/dom!Josh
bottom/sub!Tyler