Disclaimer: I do not own Sherlock
Sherlock was, as usual, unconcerned as Christmas approached. He would go to his parent's house with Mycroft. John had just soared away in a taxi to his home for the holidays. Sherlock would be moaning of boredom, except John was not there to complain to. His phone was ringing so Sherlock sighed dramatically before calling Mrs. Hudson as loudly as his lungs would allow. He shouted for her until she burst into the room huffing irritably. "My phone." Sherlock held out his hand waiting for her to hand him the phone. He was on the couch, and the phone was on the table, just out of arm's reach. This situation was something John would become irritated about, probably ending up with a rant Sherlock would tune out for. Mrs. Hudson on the other hand picked up the phone and moved it the one remaining foot to his hand. She then huffed and said she was not his housekeeper before bustling from the room. Sherlock flicked the phone open and held it up to his ear. "My dear little brother. It took you quite some time to answer your phone. Has little John gone off to play with his real family?" Mycroft asked patronizingly.
"Don't ask stupid questions Mycroft. What do you want?" Sherlock growled. They both knew Mycroft kept tabs on them, so he would obviously know where John had gone off to.
"I just called to tell you Gregory will be joining us for Christmas as my plus one." Mycroft said casually.
"Found yourself a goldfish?" Sherlock asked sourly.
"Oh don't sulk little brother. Green is not a good look for you." Mycroft said and before Sherlock could make a waspish retort the elder Holmes hung up.