A/N: Rated K. Six down, three to go!
He places the ring on her finger, sliding it up, up past the first knuckle, then the second, until it comes to rest against the base of her finger and sits there, a simple gold band, the only piece of jewelry he's ever purchased for anyone (Janine doesn't count, he only rented that diamond and luckily Mrs. Hudson returned it to the jewelers while he was in hospital).
They decided against an engagement ring; with her work, Molly can't really wear rings with a high profile and he knows that she nearly lost her previous engagement ring from That-Man-Who-Shall-Not-Be-Named more than once because of having to take it off for autopsies.
Then she slides the matching gold band on his finger and their eyes meet and his breath catches and thoughts of anyone other than his Molly evaporate like mist in the midsummer sun.
Then she kisses him, his Valentine's Day bride, and Sherlock Holmes knows he's the luckiest man in the world.