Sherlock:
His name in your phone: Sherl
Your name in his phone: (y/n)
John:
His name: Doctor sexy
Your name: Beautiful
Moriarty:
His name: My king 👑
Your name: My queen ❤
Greg:
His name: Graham
Your name: Sweetie
Mycroft:
His name: Myke
Your name: (y/n)