You and Sherlock are friends! Well, less actual friends. You two were practically work friends, so more like colleagues. You and Sherlock didn’t exactly get along. Though, you liked his company nonetheless. You met him by chance and he took a liking to you (you hope)! And he talked to you, less talk though and more like him completely deducing everything about you. Your job, family, main skills, and all that jazz. What a nice, peculiar guy. John Watson had recently become friends with Sherlock, so now it wasn’t optional to not be friends. So you were friends with him too.
You live across 221B Baker Street in a nice apartment. It was a bit surprising how fast the two got along, Watson even moving in. But hey, who were you to judge Sherlock Holmes.
Back to present time, you were with Sherlock and Watson investigating a crime scene. Sherlock was the main detective. Watson was by the victim and you were helping out both ends somewhat. Before Lestrade approached you and started conversing. He was giving you the rundown the cops found which was important, but Sherlock was probably gonna disprove majority of it or get into the more gritty details. The crime was a murder case. The victim was a woman in her early twenties.
You listened to Greg and watched Sherlock + Watson work. Before Sherlock perks up and walks over to you. You brace yourself for an onslaught of information about the victim.