Requested by anon: a sister imagine where she randomly showed up in his flat w/a companion after years of not seeing each other ‘cause she’s a genius agent of sort & the reason she’s there is to say she’s getting married & he goes on protective brother mode even getting mycroft to find out some dirt on the guy but apparently he’s perfect. In the end Sher finds out the guy keeps her right. & anon: where their little sister is dating someone and neither of them deduce it because they think it’s impossible for her to be so grown up, but John figures it out because he understands humans. And Sherlock and Mycroft are completely shocked and get really protective of her.
Word count: 2.377
Warnings: Jelly Mycroft and Jelly Sherlock threatening very gory things.
A/N: Tom Hiddleston who? I wanted to write something light for the angsty stuff that’s coming this week. Also, how else would I express my undying crush on Tom HIddleston but by basing this character on him?
“What are you doing here?” Sherlock inquired instantly as he caught sight of the girl – woman – sitting on his chair.
“Hello, brother.” She spoke sarcastically as she stood up, “I missed you too, and you look great.”
A warm smile grew on their faces and soon they were hugging. Sherlock let out a raspy chuckle and pulled away.
“It is marvellous to see you, sister.” Sherlock spoke truthfully.
“Brother? Sister?” John asked from behind Sherlock and the woman.
“John, this is my sister (Y/N). Sister, this is my friend Doctor John Watson.” Sherlock introduced them proudly, acting for once like a regular human being.
“John Watson,” she pronounced, “if everything I heard about you is true, I should call you my brother as well.”
She hugged the doctor warmly and, although John hugged her back, he couldn’t help but to mouth a “What does she mean?” to Sherlock who, of course, gave no answer.
“Does Mycroft know you are here?” Sherlock inquired once she let go off John.
“That question is awfully stupid, Sherlock.” She snapped sassily and Sherlock rolled his eyes.