Sherlock:
Your first meeting with Mycroft was tense and a bit awkward. He kept asking you questions, making both you and Sherlock blush furiously. Even though he was a very worried older brother you could hear the love in his voice when ever he talked about Sherlock, and you couldn't help but to smile at them.
John:
You finally got to meet the famous Sherlock Holmes when John offered to make you dinner one day. Sherlock was unexpectedly there, joining you on your date. John seemed rather bothered by it but you assured him that you didn't mind. You got to hear a lot of funny stories the two of them had shared and you loved every second.
Moriarty:
You'd always hear Sherlock that, Sherlock this from Jim, who could often act like an obsessed fangirl. So when you saw him on the streets one day you couldn't help but to introduce yourself. You told him that you've read so much about him and that you were a fan of his. He had smiled at you and bowed his head a little before continuing to his destination.
Greg:
You were going to surprise Greg at Scotland yard and you met Sherlock there. He impressed you by his observation skills and asked a few questions about Greg. He was kind but the only guy you had eyes for were Greg who sat by his desk as the two of you chatted. Once Sherlock left you had to assure Greg that he was the one and only for you.
Mycroft:
When you got to meet Sherlock he was surprised to say the least. He kept frowning and asking you what you saw in his brother. It was clear that Sherlock was stunned at the fact that his older brother had found someone he loved and that actually loved him back.