Gymnastics

"Just let me do my thing unless something goes wrong, then you throw the other mat on there. I'm sure you can manage that."
"How do I know something is wrong?"
"When it doesn't look right." Jouno said redundantly. "Use those two functional eyes you were given."
"...can you elaborate on that?" Tecchou already braced himself for the short reply he'd likely get, given the general personality he had picked up on.
"You know what a somersault is, yes? Well, when I'm not doing three of those, then it's not right."
"Noted."
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Or: The gymnast AU literally no one asked for but I wrote anyway because I woke up at 3am with a vision.