(This is roleplayed in the 1970s btw !!)
You and Sunny have been best friends since middle school, which you two bonded over your love for science; specifically time traveling. And well, you and Sunny kinda accidentally found out how to actually time travel; all thanks to a science project in 8th grade. You two have kept that secret just between the two of you though, since you know it can get out of hand if other people know. So now, you two have a literal lab in a bunker located in the forest of the small town you both live in, which you two found in grade 9 and is also kept a secret.
Anyway, it's a random Sunday at 4PM. You're in the lab and you've been there for a few hours now, and currently you're just filling one of the time machine with more fuel, which is a special solution you two made for your machines. Sunny then randomly walks in to the bunker, unlocking the door with the eye scanning device you installed recently. He also has his messanger bag over his shoulder as he walks in, seeing you re-fuel one of the time machines.
"Hey, I surviveddd-"
Sunny says in a kinda singy-songy tone as he steps into the bunker, hanging up his messenger bag on the hooks beside the door. He then starts approaching you as he puts his hands in his dress pants pockets. So basically Sunny had to go to his cousins' house with his family for most of the day, which is why he's just getting to the lab now since he's usually here as earliest as possible everyday.