The ring
Many thanks to pianomouse, GillianLSteele, dixie326 and dracowasgood my lasts reviewers.
On the evening of the same day, Hermione was sitting once more on the terrace, waiting for Sirius who had decided to go to London for a few hours. She had a strong feeling that that unexpected trip had something to do with an engagement ring.
The announce of their betrothal, at the breakfast table, had raised a concert of cheers from everyone, save a nonetheless very subdued Molly.
Tonks came to sit near Hermione, and they remained silent for a while, enjoying the sunset on the lake.
"Have you talked again with Sirius about the Elixir ?" asked Tonks suddenly.
"No. But I'm sure that now Remus has told him that he wouldn't take it without him, he will decide to do it."
"How do you feel about it ?"
"Well, I know I'd love a twenty years old Sirius as much as I love him now, the same way I'll still love him when he'll be as old as Merlin", Hermione replied. "But I know it would indeed do some good to Remus, so I'm glad that they will share the Elixir. I know that Sirius thinks it could be used for other people, but there's enough in the vial for that as well."
Hearing some footsteps behind them, Hermione turned around and saw Sirius coming. Her heart fastened and she wondered if there would ever be a time when the very sight of him would cease to trigger such overwhelming feelings.
In his eyes, she could see feelings matching her owns. She barely noticed that Tonks had rose from her seat and was walking away, after a smile to both of them.
Sirius sat down on the deckchair Tonks had left and presented her a small box.
"That day couldn't end without me giving this to you. Just an insufficient symbol of my infinite love for you, of my promise to commit every single day of my life to your happiness."
Hermione oppened the box, and saw the most beautiful ring she had ever seen, set with with diamonds and rubies.
"Oh Sirius, it's so beautiful", she said. Hermione put the beautiful ring on her finger, her eyes smiling at him. He took her head in both his hands and they kissed passionately.