I've had a few people fretting about there being too much John/Mary; really now, this wouldn't be a Sherlock/John fic if you had anything to worry about.
At Peace
"I don't intend on kissing you, John," Marian told him, voice imbued with amusement. "I think it's more for Anita's sake—the mistletoe, I mean. She puts it all over the place as an excuse to spring kisses on David. I don't take much pleasure in kissing my aunt's guests, even if they are handsome doctors."
"Why, thank you. Where is Anita, anyway?"
"She went to drop off David's lunch."
"Where's Sherlock? Last I saw, he was napping on the couch—but he can't still be there."
Marian shook her head. "When Sherlock comes home, he sleeps better. He's at peace here."
Prompt was from Javien Deluke, and it was: imbue