Merlin came running around the corner and into Arthur's room...and stopped dead at the sight of his prince.
"Um..."
"Shut up."
Merlin's mouth snapped shut, but his smile was widening like the morning sun through the curtains.
"Sire?" he said tentatively as he stood there.
"Yesh, Merlin?" Arthur said, his teeth gritted so much it was affecting his speech.
"Should I tell your father you're not training with the knights today?"
Arthur glared at him.
"Do you think I could with FLOWER PETALS COMING OUT OF MY HEAD, MERLIN?"
"No. No. Probably not," Merlin said, concealing a smirk.
Arthur climbed out of bed, his yellow petals fluttering as he stood up. Merlin stifled a laugh.
"Are you finding this funny, Merlin?"
Merlin fought to keep a straight face and lost. "No, sire. Not a bit."
"I'm sure. Help me get dressed and then find someone who can undo this, please, preferably before my father finds out I've turned into a..."
"Daffodil, sire?"
Arthur turned a fierce blue eye on Merlin as he handed him his breeches. Merlin's lips twitched uncontrollably as the petals swayed delicately from the back of Arthur's golden head.
The daffodil incident (never to be spoken of again) lasted only for a short time (Merlin wasn't as mean as he made himself out to be.) Within the day, the petals wilted and fell off, and Uther was none the wiser.
Arthur learned his lesson, and he never called Merlin a daffodil again.