Prompt: Sherlock/John, and the skull
A/N: Dialogue-fic
The Voyeur
"Your attention has strayed."
"What? No it hasn't, come back here."
"I am not interested if you are not going to focus on the task at hand."
"The task at- And, also, this from the man with who texts in his sleep and solves cold cases in his mind during a shag."
"It stimulates the brain. Opens pathways. Some of us work better that way. You do not."
"Get back here, I'm not done with you yet."
"No."
"Sherlock."
"No longer aroused."
"Then I'll get you aroused again. C'mere-"
"No, not until you tell me- Oh. Oh!"
"...What?"
"Really, John?"
"Really what?"
"The skull? Don't growl at me, it's true."
"I just- I don't- Stuff it!"
"Tell me. It's true, isn't it? You cannot perform in front of the skull!"
"Smugness doesn't suit you."
"Of course it does. Come back here."
"No, I am not in the mood. Sherlock! Keep your grabby hands-"
"Really, John. I'll turn the skull around if necessary. There, happy?"
"Rarely."
"Liar."
"Shut up and- Mmph! You would get off on being the cleverest bloke in the room."
"Be reasonable, John. If that were the case I'd never get anything done."