[Prompt - "Pain is the only thing I'm familiar with."]
"Ow ow ow OW!" Thatch squawked, yanking his arm away from his brother. Marco sighed and sat back a bit annoyed. He rolled his eyes as Thatch pouted, cradling his arm close to his chest.
"I can't tell you if it's broken if you don't let me look at it." Thatch glared back but slowly and reluctantly relaxed his arm for Marco.
"It is broken, so be gentle. Do you know how excruciating this is?"
"Yes" Marco snorted "because pain is the only thing I'm familiar with." With a smirk, he glanced from his examination of Thatch's arm to look into the honey brown eyes that glared back.
"I hate you, you're the worst." Marco just hummed, not really paying attention. "Why you're the appointed medic on this mission is anyone's guess."
"Because I'm the only one on this mission who bothered to learn even basic medical treatment."
"Or because pop's is going seni- OW!" Thatch yanked his arm back to his chest. "You bird brained brute!"
"Whiny little idiot." Marco refuted childishly. How Thatch managed to always drag him to his level, Marco could never comprehend. "It's not broken." He was quick to cut off his brother's argument. "It may, however, be fractured. We'll have to have Bay take a look at it when we get back. " Marco couldn't deny he felt a little bit of satisfaction when Thatch groaned about that. Bay was not exactly the most gentle among their medical staff.
"In the meantime you should rest your arm." He looked pointedly at his brother. "Don't strain it further, in fact best not use it. For anything."
"That's nasty Marco."
"What?"
"I can't believe you. Talking about such dirty things."
"Oh for the love of. You know what I mean."
"Disgusting."
Marco groan, exasperated and annoyed. Thatch's eat shit grin firmly in place. Pushing aside the temptation to whack the man Marco helped him up. As they walked away, he silently thought how he preferred his whining.