This could've gone way more nuts (haha, see what I did there?) than it did. But this is K-rated (I think), so that'll have to wait.
December 14th – Fairy Tales, or The Nut Cracker
It was Christmas night and little Sherlock, who was actually a grown man, was waiting impatiently to open his presents, which he had already deduced to be the chemicals, he was running out of. The others were dancing around and eating candy, but Sherlock just sat in a corner.
"Bored," he said aloud, when Mycroft sat down next to him.
"I know," he said. "But Lestrade is coming soon." Sherlock grunted, but now the doors opened. Lestrade stepped in with a huge bag of presents in his arms. All the small children cheered and ran to him and it was decided, that now the presents were to be opened. Sherlock tore them up and got, as he had deduced, chemicals, but his face was filled with glee. Until Lestrade stood in front of him
"Lestrade," Sherlock said. Lestrade smiled and held a present to him.
"This is for you," he said and Sherlock took it hesitantly. He couldn't deduce what it was and opened it carefully. Inside there was a nutcracker. He was dressed in the clothes of an army doctor.
"His name is John Watson," Lestrade said, but Sherlock was already completely lost in the doll.
"John," he whispered softly and caressed the doll. But Mycroft was offended, that Lestrade had given the doll to Sherlock.
"Give it to me!" he screamed and tore the doll out of Sherlock's hands. Sherlock fought to get it back, but Myroft dropped it. It broke by the shoulder. Sherlock cried out and Lestrade picked it up carefully.
"Look, we'll wrap it. I'll be fine again," Lestrade said and wrapped it. Sherlock pouted and craddled it close to his chest. Then he went to bed with the nutcracker in his arms.
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Sherlock had a dream that night. A dream where he fought against the evil mouse king called Moriarty and he had to protect the nutcracker, but he finally woke up. It was all just a dream. It was Lestrade who woke him up.
"Good morning," he said and smiled and Sherlock said confused. The nutcracker was not in his arms anymore.
"Whe-" he started, but then he saw him. A handsome army doctor-prince stood before him. The nutcracker had turned into a prince.
"Come with me," the prince said and stretched his hand out. Sherlock took the nutcracker's hand.
"We're going to the Candy Lane," he said and sat himself in a sleigh. Sherlock followed. As they drove off into the snowy landscape, they shared a sweet kiss.