Merlin felt fantastic as he rode around the field on his horse. He smiled at Arthur as he rode past him and decided he should show off a bit. He kicked his horse into canter and sat deep in the seat; relishing in the feel of the wind in his hair, he was so caught up in his enjoyment that he didn't notice when his foot slipped from the stirrup and he was slipping sideways.
He looked up at the sky from his new position on the floor and the first thought that came to mind was 'Huh?' he looked over to Arthur as he ran to his aid. "Are you alright, Merlin?" he asked as he knelt beside him a small smile tugging at his lips. "Yeah, fine just..." Arthur nodded for him to continue and Merlin cleared his throat. "What happened?" this caused Arthur to burst out laughing, clutching at his sides.
"You fell off, idiot!" he exclaimed as he held out his hand for Merlin to take "oh!" was all Merlin said as he allowed Arthur to pull him up. "You're sure alright?" Arthur asked as he brushed some loose dirt from Merlin's shoulder. "I'm fine, just one other thing?" he said hesitantly as he looked down at himself. "What?" Arthur asked as he turned to grab Merlin's horse.
"Is my arm supposed to bend like this?" Arthur looked at the arm and gasped. Said arm was currently protruding at an odd angle. "God Merlin, doesn't that hurt?" Merlin shrugged causing the disfigured arm to swing sickly. "Not really. why?" Merlin asked as he poked distractedly at his arm. Arthur grabbed the hand and said in a disbelieving voice. "It's broken Merlin!"
Merlin looked at the prince then back at his arm "oh!" he said dumbly as he proceeded to faint into the prince's arms.
(This actually happened to me-minus the fainting, i don't faint- and i thought 'hey this sounds like something Merlin would do' and i was like why not so hope you enjoyed it XD)