Sir Arthur Conan Doyle, Steve Moffat, Mark Gatiss own Sherlock and his realm. Marvel owns Loki and Darcy Lewis. I just own my computer,my version of Openoffice, and my sick fantasies. English is not my native language, and this story is un-betaed, so please forgive the mistakes and the typos.

Sonnet-91 gave me this prompt on Tumblr (several months ago): "Can you do one where Loki and Sherlock get stuck for a whole day together? I think that would be neat.". My dear, sorry for the delay...and yes, it's going to be a multichapter story, I couldn't contain the madness of Loki and Sherlock together in a one-shot.

"Tell me again: why are we here?". Loki's impatient tone reminded Darcy of a petulant child.

"Because, and I don't want to repeat myself – again -, my cousin invited us to spend some time with her, and I've not seen her since my first year at college, and more important, I've always wanted to visit London at Christmas. Last time I was here, a bunch of angry dark elves totally ruined the mood, and Jane was making me work so hard that I didn't have the occasion to see my cousin. So, please, shut up, be a gentleman and hail a taxi for us!"

They were just outside Heathrow, a crowd of tourists surrounding the couple. Loki, dressed in casual clothes (obviously in his trademark colours, green and black), was thankfully unrecognizable, but he still had a distinct air of regality and authority. He raised a hand, and a cab stopped instantaneously beside them.

"You have to tell me your secret, sweetie..." Darcy teased him, and was ready to go inside, when a madman stepped out from nowhere, placing himself in front of the car.

"What the f-". The pretty intern's ranting was stopped by the same madman, who shoved her aside and sneaked into the cab."It's essential that I take this cab...your London tour can wait!". With that, he shouted an address to the cabbie, and the car left them, bewildered and angry, outside the airport.

Darcy and Loki arrived at their destination three hours later, cold, tired and irritated - well, thanks to his being a God and to his Jotunn inheritance, Loki was only really outraged. He had restrained himself, only because of a promise he had made before their trip ("Loki, please promise me you won't throw a tantrum in London. No magic, no mischief, while we are abroad. God knows what Fury would do if you provoked an international misunderstanding with the Queen...Promise!"), a promise he was truly regretting. That stupid, pathetic, ignorant man...he had transformed peasants into frogs for less serious insults!

Thankfully, Loki had Darcy with him, to help him restrain himself from "accidentally" ending some poor man's life; but the God was starting to suspect that in her current state, his beautiful and snarky girlfriend was already planning something devious.

"That insufferable man...I've always thought english men were gentleman, you know? Polite, kind, full of attentions...but that asshole was...arghh! We had to stay outside, and then the next taxi broke on the route from the airport, and we had to wait for another one...Thankfully we arrived to our hotel just in time to leave our baggage and come here. I hope that we will never meet that hideous man again!" Darcy shouted, before stopping at a coffee bar, just a block away from the hospital where her cousin worked.

"We have to wait for Molls here...she sent me a text earlier, saying that she had a set back at work, and that she would be ready to join us in..." the sound of hurried footsteps behind them startled Darcy, and made her stop; then, she heard her name, and she started to run towards a pretty-looking woman with a long pony-tail.

"Darcy...oh my God, how have you grown, my little cousin!" Molly Hooper managed to squeak, seeing that Darcy was hugging her so tightly to make her gasp for her breath.

"I'm not so little anymore!" Darcy answered, dragging down her cousin to meet Loki." Molls, I want you to meet my boyfriend. Molls, this is Lukas Friggason. Lukas, this is my favourite cousin, and extraordinary pathologist Molly Hooper!".

The two exchanged a firm handshake, and entered the cozy and crowded coffee-shop. They had just given their orders, when they heard the door opened again, and a tall, lanky man started to make his way towards them, without regard of the customers he was rudely elbowing.

Molly and Loki - or Lukas, as his fake id said - were sitting with their backs towards the door, so they witnessed Darcy's expression going from amused to really annoyed in a fraction of a second.

"No, not you again..." she muttered, and at her words Loki turned and stood up, coming face to face with the rude madman who had stolen their cab three hours earlier. He was ready to transform that petty human in a toad full of pocks, when Darcy's cousin literally threw herself into the stranger's arms, and the stranger started to kiss her quite vigorously.

The Norse God shared a confused look with his equally bewildered girlfriend, and only Darcy's clearing her throat rather blatantly made the two lovebirds interrupt their intense snog session.

Molly was blushing, and the man seemed quite smug. "Well...Darcy, Lukas...this is my consulting detective, Sherlock Holmes".

Thanks for reading...and be kind, let me know what you think!