Hey there! Slightly late (by my standards) update! Thanks to my beta daleksanddetectives!
'Me?!' Isabella thought as her face unintentionally flushed. She dropped her gaze from Sherlock and looked at the floor.
The Doctor looked between Sherlock and Isabella and possessively grabbed her hand.
The Doctor scoffed and said, in a slightly childish voice, "But she's my companion! You already have that wonderful army doctor over there!"
John looked up, wide eyed, from his laptop. He hadn't been expecting to be involved in this conversation, that's for sure.
"I don't know what you're talking about. We are not, as John states repeatedly, a couple. Isabella here, is an interesting one. She is surprisingly difficult to deduce, yet she isn't anything like... the woman. I want work out why she is so interesting, meaning I will have to spend countless hours analyzing her. Her every step, every word, every move-"
Sherlock was cut off by Isabella clearing her throat.
"Do not have a say in any of this?"
The Doctor gave her hand a light squeeze as he answered, "Of course! Let's see what my beautiful companion has to say about all of this!"
She felt blood rush to her cheeks as she replied, "Thank you. Now, I must say I do not want to be supervised by Sherlock 24/7."
The Doctor threw a smug look towards Sherlock, who frowned slightly.
"...but I would love to still work on this case with him, and I would be lying if I said I wasn't pleased to hear that he's unable to deduce me. I will, however, allow Sherlock to observe me at appropriate times because I would love to see what he can see from me."
Sherlock turned to the Doctor with a smirk, watching the smug smile fall from the time lord's face.
"Yes. Well," said the Doctor, desperately trying to change the subject, "I must inform you on what we are up against. You, Sherlock Holmes, like to look on the logical side of things. Don't. It won't help in this situation, but we still need your quick thinking and deduction abilities."
Sherlock was staring, unblinking, at the Doctor. He was getting more and more interested in the case, though he refused to openly show it.
"Just say it. I don't need your petty precautions. I already know that this situation would not be like what we usually deal with, and you should know that I do not tolerate people telling me how to think." Sherlock spoke rapidly, finally tearing his gaze away from the Doctor and Isabella.
"Two very important words are needed to be remembered by you, and you too, John Watson!" The Doctor exclaimed, turning to the man standing alone, witnessing the entire interaction, "Don't. Blink."