I don’t think they get on very well, Sherlock and Mycroft. I think there’s a very strong bond there, which expresses itself in odd ways. Mycroft is actually very caring of Sherlock. He’s actually, ah- given that he’s a reptilian sociopath, he’s actually very caring about his brother. He does try to look after him, try to look out for him. Try to gather him in to the family and, and to the establishment that is so important to Mycroft. Uh, I know he genuinely loves his brother, Mycroft. He actually says it, although slightly drugged. He does actually say that it would break his heart if anything happened to Sherlock.
And although Sherlock professes absolutely nothing but loathing and disdain for his older brother, he also absolutely rock hard knows his brother will always be there for him and always look after him. And that’s a different way of expressing love, actually. That’s a different way of saying ‘I know that person will never let me down.’ You never pay anybody a higher compliment, whatever else you say about them, when you say ‘I know they will never let me down’.
Steven Moffat’s answer to the question “Are Sherlock and Mycroft friends?” in the TAB extras (via no-goldfish-required)
The Holmescest shipper in me had to giggle happily at the line “And although Sherlock professes absolutely nothing but loathing
and disdain for his older brother, he also absolutely rock hard knows
his brother will always be there for him“
