BBC Sherlock: Amnesty Round 5: photo #55: Explicit

[stonepicnicking_okapi]

Title: Matilda
Fandom: BBC Sherlock
Length: 500
Rating: Explicit
Pairing: Mycroft/Lestrade
Challenge: Amnesty Round 5 - photo 55
Notes: Miscommunication. Outdoor sex.
Summary: Mycroft jumps to a conclusion.