“Mycroft, I’m never going to find my soulmate! John is such a common name!”

He says annoyed to his brother, they were on the topic of soulmates again. At a certain age people get the name of their soulmate. Sherlock got ‘John’ and Mycroft got ‘Greg’. They weren’t happy to say the least due to those being very common names. They were at a crime scene and there were some other people there investigating the body. Including you, Watson.