Sherlock is the one who finds Molly after her cousin is pronounced killed in action. Mentions of James Bond, but not enough to be a crossover. Platonic Sherlolly fluff.

In which Q finds himself stuck between a certain MI6 operative and a certain St. Bart's pathologist. What's more complicated than falling in love? Falling in love with both 007 and his beloved little cousin. 00Q and Q/Molly (Q as the 3rd Holmes brother)

Contrary to Sherlock's belief, Moriarty's choice to not threaten Molly at Reichenbach was very deliberate. A certain MI6 agent loves his little cousin very much.

Bucky remember life in the Red Room with Natalia Romanova. He finds Natasha Romanoff to be a very different person. Combination of comic-canon and head-canon. Winter Widow with bits of Black Hawk.