This is shorter, but I worked pretty hard on this. Noctis and Luna have a simple and sweet relationship in my mind.
As always I own nothing.
Once upon a time, there was a prince and a princess. The prince came from a long line of oracles and healers, his family dedicated to helping others. The princess came from a long line of warriors and strong rulers, her family dedicated to protecting all those they could. When the prince and princess were young, their parents met and promised their children to one another. Their union would form an alliance that would strengthen both their kingdoms and provide stability to all the lands. The children grew up alongside one another, becoming friends and partners. Even as the princess christened her knights, she never forgot her friendship with the prince, and the prince never forgot her.
Their story was a fairytale. A prince and a princess, promised to one another since before they'd even been born. Noctis knew she'd be queen one day, Lune knew he'd be the Oracle, and they both knew one day they'd be married. It was hard to understand when Noctis was small. She hadn't known much about marriage, but Regis had explained it was like having a best friend you wanted to spend the rest of your life with. Lune was indeed Noctis' best friend in her mind. She'd had done everything she could to seem mature and cool around Lune, because Lune was older and just so awesome. He was way nicer than Ravus was anyway.
"He just takes himself too seriously." Lune had explained after Noctis had been snubbed by Ravus for the umpteenth time. "It's not your fault. He does this to everyone." It was hard not to feel like she was doing something wrong though. Not because of Ravus, but because of everyone else's reactions. She was just the exact opposite of what Noctis had been told a queen was supposed be. Fairytales said queens were supposed to be regal, composed, beautiful, not scrappy tomboys who hated wearing dresses and wouldn't eat their vegetables. She was nothing like Lune's mom and it wasn't like she was ever going to live up to the legacy her own mother had left. Noctis was convinced she wasn't cut out to be queen. Lune was better suited to be a queen and he was a boy!
Noctis hadn't expressed these feelings to anyone, terrified that others would interpret her feelings as a sign of weakness. Of course, it was hard to hide such feelings from her father, who constantly assured her that Noctis was every bit a queen. For an example, Regis pointed out the Rogue Queen, the wielder of the Star of the Rogue. Said queen's name had been lost to the sands of time, but no one had ever forgotten how utterly terrifying that woman had been in her deadly efficiency and tactical planning. This did make Noctis feel better. And Gladio's endorsement of her fighting abilities helping. Lune himself had his own share of fears and anxieties. He constantly worried about not being good enough to help all the people he needed to. Not to mention he wasn't exactly the pinnacle of traditional masculinity. Lune was small and soft, looking vastly more feminine than his brother. But he had faith in himself. The people believed in him, so he owed it to them to believe in himself.
"How are you always so calm?" Noctis asked when she was 13. "You never worry about anything."
"I worry as well." Lune said, looking up from the book he'd been reading. "I've just had a lot of practice calming myself and putting things into perspective."
"Could you teach me how to do that?"
"Well, I'm not sure it would work for you." Lune admitted. "We're very different people, Noctis."
"I want to try!" Noctis sat up straighter. "I can do it!"
As it turned out, what worked for Lune didn't exactly work for Noctis, which Lune assured her wasn't a reflection on herself.
"It didn't work for Ravis either."
"That doesn't make me feel better." Noctis groaned into her pillow.
"I suppose it wouldn't." Lune sighed and sat down on the bed. "I'm sorry."
"It's okay." Noctis would always say that to him, no matter what happened. If she said it enough times, she'd come to believe it. But Lune never let her get away with it.
.
.
When the day of the wedding came around, everyone was gathered in Altissia. Prompto was bawling like a baby because Noct was getting married and it was just such a happy moment. Even Ignis seemed a little misty eyed, although he'd deny it vehemently to anyone who pointed it out. Lune stood at the altar, dressed in the traditional oracle robes, his brother at his side as his best man. Ravis showed no outward emotion, but one could swear they heard him sniffling just a little bit. Noctis had refused to wear a dress, so she walked up the aisle in a white tuxedo, looking very dashing. Her father was at her side, doing his best not to cry as well. This truly was a momentous occasion for both of their kingdoms. Noctis was starting to get kind of nervous now. This was marriage. It was something really serious. She got to the altar and stood opposite her husband-to-be. And so the marriage ceremony began. Lune smiled softly the entire time. He admired Noctis more than he could ever put into words. He'd seen how she'd struggled with her insecurities and how much she'd grown over the years. She was going to be an amazing queen. There was no one better to lead the people of Lucis than Noctis Lucis Caelum. As the priest spoke, the ringbearers arrived. Due to Lune's wishes, Pryna and Umbra served as the ringbearers, padding proudly down the aisle with the rings perched on their heads. They reached the altar and lowered their heads so the couple could take the rings. Lune slipped his ring onto Noctis' finger and smiled. Noctis flushed and repeated the gesture, slipping her own ring onto Lune's finger.
"You may kiss the bride." The priest announced. The couple kissed and the church erupted into applause and some whoops from Gladio and Prompto, who was crying again. Even Ravis was crying now, comforted by his mother. Noctis and Lune were carried out of the church on Noct's knights' shoulders.
"Are they always like this?" Lune laughed.
"You'll get used to it." Noct said.
The wedding reception was wonderful. Regis and Sylva both made rather touching toasts, as did Noct's friends. Ravis made a speech, as Lune's brother, which turned out to actually be sweet.
"I didn't always like you, Noctis. You were a little brat who always seemed to be getting in my way when I was trying to do things. But seeing how happy you make my brother, I had to reconsider my opinion of you. You are a good woman, strong in your convictions and ability to protect yourself. As the King of Tenebrae, I look forward to working with you. I am certain you shall prove more than capable." Then Ravis sat down and refused to say anything else. The banquet hall was completely silent before everyone began clapping. Noctis couldn't help but smile. She hadn't thought Ravis would ever say something like that. It made her almost want to tear up.
"You're going to be a wonderful queen." Lune whispered, squeezing Noctis' hand as the hall filled with the sounds of the wedding party.
"As long as you're by my side, I know I can do it." Noctis whispered back, kissing her husband.