Noah is :3
p.s - pushing a fanfic at you
http://archiveofourown.org/works/240020 it's a sherlock and Mycorft one, and it's LONG (i've only read 1/4 or 1/2) but it writes their relationship as kids and teens really well, so I thought it was worth a look (though now I miss Mycroft lol) it starts to get a bit incesty, but even that's written well, which is testament to how good it is. lol
but yup. their sibling relationship is just lovely and slightly tragic