peachyfirth
"'Mycroft, Merlin, and I were all picked from the same batch of recruits. It was the most agents ever made from one litter,' Harry explained, and he and Mycroft exchanged a knowing smile.
'Mycroft?' Eggsy blurted after a moment of silence. 'Your parents must really hate you.'
'It's a family name,' Mycroft explained, smiling. 'And it's not the worst, I assure you. My brother is called Sherlock.'"