A/N: Ok, that one obviously isn't all that dark, and isn't the best I have done, but right now is the only thing that comes to my mind.
Christmas tree- day three
He was having such a nice day lying under the console and doing maintenance in the peace and quiet, while his human companions were sleeping. Only the sound of the Time Rotor was breaking the silence in the console room. That was until his two humans came and said that it was Christmas and demanded to have a tree. Well Jack wouldn't even know is Christmas but he was sure that Rose was all too happy to inform him. And of course Jack, being Jack embraced every new experience with excitement. He was only hoping that they would not demand to go Christmas shopping with Rose's mother and boyfriend. He just might be able to tolerate a tree but Christmas Eve with Jacquie would be way too much even from a brave man as himself. He was sure that he would rather chance facing Dalek's weapon than Jacquie's Christmas pudding. However no matter how hard he was trying to ignore them and play deaf they were determined to don't give up.
"Come on Doctor." Rose whined pocking him with her foot in a places where her foot really didn't have right to be. "If you are not going to take us to mum's for Christmas give us at least a Christmas tree." He finally give up on ignoring them and stood up puffing annoyed and generally looking grumpy to show them how displeased he was. She was smiling this trade mark Rose Tyler smile at him, with her tongue pocking out through her teeth.
Jack was leaning on the console casually looking all gorgeous and obviously knowing it, with that bright smile of his.
"Come on Doc." Jack tried after Rose not getting an answer from him. "I've never had a Christmas; I would love to see a Christmas tree, please." After the Doctor not answering Jack tried something else. Gone was the bright smile and it was replaced by doe eyes and such an adorable pout. "Pretty please with me naked on top."
That got him a reaction.
"Don't push it Captain." The Doctor warned when all that he wanted was to please his two gorgeous humans and give them that tree they wanted. But he could not understand why the humans have to cut the forests and something that even if not sentient was still leaving and essential for their oxygen. What was the point, just to have it decorated with shiny stuff for a couple of days? So yes he was going to give them a tree, but it wasn't going to make it easy for them.
"You want a tree?" The Doctor asked them. "I'll give you a tree."
When they grinned happily he felt a pang of guilt but squashed it and started to work on the controls.
"Where are we going to get the tree from then?" Rose asked bouncing with enthusiasm already planning where to put the tree.
"The forests of Chime." The Doctor told her off handily, the guilt tightening in his gut again.
"But that's the place where the trees are sentient I even snogged one the last time I was there." Jack said shocked his smile disappearing. This wasn't fair, this would be murder. Rose had told him that Christmas was supposed to be a happy time. Why was the Doctor doing this to them.
"That's right Captain, the biggest forest in the universe." The Doctor told him "Let's see if you two would still want that Christmas tree so much if the tree you want to take can talk back to you."