It’s always definitely a love story. I don’t see why that means that sex has to be involved. What a weirdly sexualized world we live in where you insist they must be having sex as well. Why would they? John isn’t wired that way, whatever Sherlock is. But I think that whole scene, when Irene Adler has to say she’s mostly gay, she has had relationships with men as well, it’s not what it’s about. Sherlock Holmes is indifferent to sex. So is Irene. She uses sex to get what she wants, and John Watson happily has a string of girlfriends. Sex is not really the issue among any of these people. Love is. Infatuation is. I think John Watson is infatuated with and fascinated by Sherlock Holmes. I think Sherlock Holmes absolutley relies completely and utterly on John Watson and is devoted to him