"Every year.. packed with muggles... of course..."
"Pardon?" asked Harry, struggling to make out what his mother-in-law was saying. Molly rolled her eyes.
"I SAID: EVERY EAR IS BACKED UP WITH MUCK AND RUBBLE. I'LL MAKE THE POTIONS OF COURSE!"
"Ah," he answered simply. He looked back at his wife and children, all equally deaf since what he already knew would henceforth be referred to as The Incident at the zoo. Albus had gotten a little bit too close to that erumpent, he had tried to intervene and, well, here they were, covered in bits of shit and building material. At least the erumpent had decided against leaving its enclosure and running amok in the streets of London.
Later the same day, Harry watched Molly apply the last of the potions to his children before receiving his own treatment. The feeling of the potion literally working its magic in his ear was something he would never get used to, it was like having a fizzy drink stuck in your ear. He marvelled at the expertise his mother-in-law showed: tenderness with the children, precision with the potion (not a drop wasted!), and of course the fact that the cure worked.
"Molly," he said some time after the others had left, "have I ever told you how happy I am that it's Ron I met first on the train, all those years ago?"
"You may have mentioned it, yes," she answered, giving him a fond look.
"Well, earlier, when you were checking us with all the expertise of a trained healer, I thought you said something which I had heard before, a long time ago, and it brought back a memory." Harry took a moment to choose his words. "You were the first Weasley I ever spoke to, indeed even the first ever witch if you don't count Madam Malkin, and you helped me get to the Hogwarts Express without knowing who I was or giving it a second thought." He slowly shook his head. "I don't think I've ever thanked you properly. I wasn't used to that kind of treatment at the time."
Molly smiled with a blush. "Oh Harry. I only did what I would have done for any child who asked for a hand. It's not exactly obvious how you get to the platform, and indeed I hadn't a clue who you were."
"I know you only did what you would have done for any other child," Harry said before she could add any more. He put on his glasses - these days, they were a much more stylish, expensive pair - and slowly walked to the exit of the living room. Before leaving, he stopped and turned back, leaning on the doorframe. "I think that's part of why I've always loved you so much, and I'm so glad it was you, and not Mrs Malfoy, or some other horrible excuse of a witch. I know you're not my mum, but you might as well be, you know?"
Stunned speechless, Molly did not move as Harry left to check on his children, before sitting down and sobbing with delight.