Doctor Who, Sherlock, and Sheldon Cooper Crossover

The Beginning of an Era

221B Baker Street
He looked down at the card in his hand. This was the address it said to go to. The man fastened the buttoning a on his cloak and walked up the stairs. He knocked 4 times on the door, hesitated with a look of anguish on his face, and added 1 more knock. Very rarely did he knock on things these days; he would much rather "sonic" the door open and burst through the door as if he owned the place. Almost immediately the door swung open with a bang. Another man was standing in the doorway. His eyes were bloodshot and his clothes gave off the odor of a man who hadn't washed them in several days. A sly smile crept up his face and he stuck out his hand to shake the 907 year old standing in front of him.
He didn't look 907, like you may be thinking. No. This man had traveled through space and time for centuries, for he was a time lord, the last of his kind.
He took the bloodshot eyes mans hand and turned it over in his palm.
"Fascinating. Beautiful." He muttered, mostly to himself. The younger man squinted at the man who held his hand and shouted behind him.
"Sherlock!!!! He's here!!!" And yet another man came storming their way. "How could you tell it was him?" He said out of the corner of his mouth, meeting up with the other two.
"Deductions. Of course any friend you do have is just as clever as you are." The man took his hand back and smiled at the third man.
"Did you guess it?"
"No, he did of course." The man called Sherlock smirked and kissed his partners cheek. "I never could teach you, could I?"
The man waiting outside cleared his throat loudly and asked, "Can I come in?" Not waiting for an answer, he strode into the living room and peered around. "So why did your card just so happen to end up in my Tardis?" Sherlock came into the room and sat on a couch next to the fireplace.
"I think you know why i want you here." He smirked again and eyed the Doctor. The clothes he wore had to be worn at least everyday because of how ratty they looked. He had on a brown striped suit and tie, with a cloak on top. Near his chest was a bulge in his cloak. It was obviously a pocket with something inside. Maybe a what, sonic screwdriver? Then a little extra room for a pair of glasses? The Doctor stopped looking around the room and glanced at Sherlock.
"Ahh, perhaps I do know why you summoned me for then. It's a bit hard keeping things and acting innocent from you." The Doctor smiled and sat next to Sherlock Holmes. "It's good to see you. It really is. Last time I was here was what, 5 years?"
"More like 9 years to the day, in fact. I see you've got a new face then? Regenerated?"
"Eh, more or less. I got decent hair this time. A nice change for once." He reached inside the cloak and pulled out a metal looking flashlight. The sonic screwdriver. "So how long have you and Dr. John Watson been living together? You two look fantastic together, really." Sherlocks face became tense and he tightened his jaw.
"He moved in about 1 year ago and became my partner for solving murder cases and crimes. Just here recently we thought we could give it a shot at being, er, how can I put this...?" Sherlock was for once at a loss for words.
"Together?" The Doctor laughed. Sherlock blushed and suddenly became very interested in his fingernails.
"So what about you, Doctor? Any companions on your side?" He got up and got a violin from a desk and walked back to the couch.