A/N: This goes out to DarkAngel2112, who wondered what Jealous!Merlin might be like, since we all know what Jealous!Arthur is like ;P I found myself liking this drabble so much that I actually expanded on it, and wrote a full Merlin/Freya oneshot. If you want to read it, it's called No Laughing Matter.
Merlin traipsed lazily towards the lake, legs flying out clumsily.
He stopped abruptly when he saw his beautiful, goddess-like Freya and some man.
"Oi!" he yelled, wading out and startling the bloke away, which was probably for his own good. "What's going on over here?" he demanded, reaching his Lady, over-protectiveness dancing adorably in his eyes.
She giggled. "Nothing."
"But I saw it with my own eyes!" he insisted, waving his arms, trying to look indignant whilst not drowning.
"It was only Sir Lancelot. You didn't see anything," she beamed at his confusion.
He paused. "Lancelot… What's Lancelot doing here?"