Family by eva [12K]
Sherlock + John (kids). Mycroft + Lestrade (guardians). Friendship/pre-slash. AU. Kidfic.
Gregory laughed again and Mycroft felt his own concern easing; this was fine, and good. Being a parent with another parent. Sharing stories and sympathy. It was probably very common to experience a somewhat strong feeling for someone who could empathise so easily with the irritation Mycroft felt over the smoke damage in the library from Sherlock’s experimentation with magnifying glasses and combustion rates of various materials.