Sherlock:
He'll give the man a death glare and embarrass him, saying how he's actually married or if he has a rash or anything like that. You found it incredibly cute and adorable.
John:
He'll stay in the background until the guy actually flirts with you, then he'll have a fist fight with the guy. You couldn't help but to find it incredibly hot.
Moriarty:
Moriarty looked incredibly calm on the outside but on the inside he was planning the guys murder. You thought it was a little bit scary but couldn't help but to feel loved.
Greg:
Greg got really insecure and would stay back unless the other guys would get too clingy then he'd be by your side, saying that you're his and his only.
Mycroft:
He's like his brother. He'd give the guy a glare and order one of his guard to remove the man from your sight. You found it a little rude but knew he only meant well.