The voice, the letter K, Sherlock fondling himself and John coming in his pants. Oh god, thank you so much for that.

I had already read the second one and I agree, it's very funny :-) It reminded me of something on the kink meme... Have you read the story in which John works for a gay sex line and Sherlock calls for...some reason I can't remember? Sherlock ended up having more fun than he had anticipated...