Nature and Nurture by earlgreytea68
Slash Sherlock/Watson

http://archiveofourown.org/works/729134

Awesome story well written with all kinds of twists and turns. Mycroft turns up at 221B Baker Street with a baby that turns out to be the clone of Sherlock Holmes and the fun begins. Everyone is sure that this will be a disaster but John steps up because this is a part of Sherlock and who better to understand the problems of a baby genius but another genius. And lets face it Sherlock is hopeless with the little things like paying bills and buying food. There are so many delightful interactions it is hard to say but one of my favorites is "we are married and you're asking if this was a date" Or when Sherlock decided to kiss John as soon as he got home, he was tired of waiting for him to realize that he was in love with Sherlock. There is also the scene where John tells off Sherlock parents for their treatment of Sherlock and denied them any input on Oliver, he then basically threw them out. The characterization of the canon characters is spot on and the development of baby Oliver is hilarious.