Kurt can't stop staring at it.
It's not even that it's the most beautiful thing he's ever seen - he's seen plenty of beautiful things in his life (Blaine's eyes being one of those things, for example). After all, it's only a simple, practical, silver band wrapped around his finger. But for now until the rest of forever, he'll look at that ring and always think back to this moment.
He's never felt so full of emotion before in his life. He'd felt a lot of different things when he and Blaine broke up almost a year ago, but even those angry and sad emotions didn't make him feel full of anything. Like a deflated balloon. But now, all he feels are the millions of butterflies flying around in his stomach and throat every time he sees the ring shine in the light.
Kurt's lying on his side naked underneath the covers of his bed, staring at the ring. He can feel Blaine looking at it, too, from over his shoulder. He smiles when he feels Blaine nuzzle his face into the back of Kurt's shoulder.
"I can't believe you," Kurt tells him, turning his face to look at his fiancé.
"What?"
"You're insane. I serenade you in the courtyard with a band and everything, and you manage to outdo me by singing with the entirety of Ohio."
Blaine laughs shyly, which makes Kurt's stomach twist pleasantly when he sees the blush on Blaine's cheeks. "Not the entirety."
"You know what I mean," Kurt tells him, turning around to face him completely. He links his hands with Blaine's, looking down at their fingers. Kurt thinks about Blaine saying "Our hands were meant to hold each other, fearlessly and forever."
"I want you to have one," Kurt says.
"Have what?"
Kurt kisses Blaine's chin. "A ring."
Blaine smiles at him and throws his arm around Kurt. "I will. One day. I promise."
Kurt hums, and Blaine looks down at this man he loves, so vulnerable and completely unguarded and safe. He looks at his bright blue (and a little drowsy) eyes, and imagines himself looking into those eyes on their actual wedding day, and many many more times in the future.
"Kurt," Blaine says, "I want you to know that we don't need to get married right away if that's what you want. I don't mind being engaged for however long it takes - I just want you to be sure that you really want to do this, and there's nothing wrong with waiting a little bit and-"
Kurt cuts off Blaine's nervous rambling by kissing him gently on the lips. "I've never been so sure of something in my life. I've never been so sure of us."
Blaine sighed against Kurt's lips.
"You make me feel so connected...safe, and loved. I highly doubt I'm ever going to find someone else who makes me feel like that."
Blaine kissed Kurt hard on the mouth for what felt like the thousandth time that night, holding him as close as possible. "I love you."
"I love you too," Kurt whispers, "my fiancé."
That night, Kurt goes to sleep dreaming of the color yellow, staircases, The Beatles, a silver ring, and perfect hazel eyes.