I think I begin to know how your brain works. I read Good Vibrations and immediately thought, "Hmm. It's Anarion. There must be a vibrator at play." :D

I have an orgasm hangover.
*looks at you dubiously* You’ve just made that up, haven't you?

I experimented with a vibrator for a case.
Of course it's for a case. Or for science. I wonder why Sherlock never sees to this kind of cases in the show...

You need fluids
Well, no, he doesn't, that's the point. *guffaws in a very mature way*

And of course now you have a sequel to write, about the time when Sherlock did it again, but in John's presence this time. ;-)

P.S. I can't believe you used the "science" tag. :D