A/N: Done for "Day 3: Dragon". Enjoy! It's very late for Xander/Corrin because I've been extremely busy with career matters, but better late than never.

There is a small detail in the story about Corrin's parentage that is spoilers if you haven't played the Hidden Truths DLC. If this isn't cool, I'd recommend not reading this. Thanks Anyways!

Xander watched as his wife contorted, a white light emitting from her as she crawled back into her human form. His lungs were tight, and his curly hair was blown back from flying with the dragon. He watched as her scales finished disappearing.

Corrin returned to two legs, and she stepped over to the king, wrapping her arm around his. She tilted her head, nuzzling his shoulder.

The blond spared a look down at the woman. Her eyes were wide with wonder, her breathing labored; Xander could still hear her accelerated heartbeat. Her body hadn't calmed from the flight, despite having returned to its human shape. They walked through the courtyard of their castle, heading back inside.

"Did you enjoy it?" the queen asked. Xander chuckled, reaching his left arm over to squeeze her hand. She looked up at him with glowing eyes, anticipating his response. He leaned in and stole a sweet kiss, his lips retreating before she realized they were together.

"Of course. Although I must say, I could have done without that spin." He chuckled, thinking about how his wife had tucked her wings in, spinning sporadically several times before spanning out again and catching air. Despite his tolerance for flying, the aerial flip had lurched his stomach, and threatened his grip on Corrin's back. The maneuver should be reserved for solo flights, Xander decided.

His wife twirled in front of him; her hands settled on the king's elbows. They stopped walking as her eyes met his. The woman was smiling sheepishly, and her face was a bit red.

"I really am sorry about that. It was the first time I've been able to fly since Kana was born." She rubbed his arms up and down. He smiled, reaching an arm down behind her knees, the other on her back. He carefully hoisted the girl up and carried her like he had on their wedding night. The blond began walking again; two guards opened the large wooden doors for him, and he carried Corrin inside of their castle.

"I've already forgiven you, my queen," he said, allowing the girl to grab his head and pull him into another sweet kiss. His footsteps echoed on the hard floor; Nohr was still a harsh land, but it had gotten better since he'd stepped into head of the monarchy.

As if his thoughts wanted to prove themselves, a different door burst open behind them. Xander turned, his wife swaying in his arms; he watched as three children bumbled out of the doorway, running fast and laughing with each breath they caught. Elise sprinted in behind, her dress floating along.

"Hurry, hurry! Uncle Odin is gonna catch us!" she shouted. They zoomed down the hall, towards the king and queen. The group bustled over each other, shouting and giggling as they rushed at top speeds. Xander felt his wife's lungs grow and suck in a breath.

"Run fast, Siegbert! You don't want to get caught!" She shouted to her son; the boy looked up the hall, his face brightening at the sight of his parents. Ophelia and Forrest ran with him as they passed the monarchs. Elise followed the kids, ushering the wild herd through the corridor. She shot her siblings a smile before continuing her escape. A heartbeat later, Odin came through in the same entrance, sliding in dramatically and swinging his cape for extra flair.

"Odin Dark follows you swiftly! I come for you heathens!" he bellowed. Xander chuckled as the family ran through the halls, letting them disappear from sight before continuing his pace. His wife snuggled into his shoulder, closing her eyes. The king felt her warm breath upon his collarbone; it was silent again until they reached their quarters.

They approached the door. From her husband's arms, Corrin reached forward and turned the brass handle. The oak wood swayed open, revealing their quarters.

Their room was the biggest in the castle. Xander had completely refurbished the room and furniture after Garon's death; the thought of sleeping in his late father's bed unnerved him. He thanked his lucky stars for being royalty, as such a process couldn't have been afforded by anyone else.

Next to their bed, a small wooden crib rested a sleeping baby; their second son. Felicia sat next to it, monitoring the prince in his sleep, a book in her lap. At the royals' arrival, she stood and curtsied, grabbing her book.

"Your majesties; he has slept since you left," she nodded, departing to the door. Xander gave his thanks to the servant while his queen rolled out of his arms, walking forward. Corrin crouched by the crib, her fingers caressing the child's sparse hair. The king sat on the edge of the bed, pulling his feet out of his boots. He began to unbutton his violet vest, and soon after his undershirt; both garments dropped to the floor.

He listened to his wife gently cooing at their child. Truthfully, the blond was happy their son was still asleep. Xander loved being a father, but this child was much more rowdy than Siegbert had been, and many of his moments spent awake were also spent begging for attention.

His wife gave up her gloating and stood, climbing on Xander's lap. She pushed his chest down so he lay on the bed; her knees folded on either side of him. The king sat still, allowing the queen to dominate, and was greeted with a sultry kiss on his lips. Her small hands rubbed against his bare chest, caressing his hardened skin. When the blond tried to grab her, she rolled away, a giggle accompanying her. She continued her roll until her head rested on the pillows, and beckoned the man with a finger.

Xander crawled up to her, crouching above the maiden. His blond curls swished around as he leaned down and caught her in another kiss. Corrin's hands embraced his cheek as they locked their mouths together. He would have been content to continue this through the night, but the sound of crying interrupted them. Their lips parted and they froze, as if they could hide from the sounds; but another scream broke the silence. Xander dropped his head between Corrin's neck and shoulder, smothering himself with the bed. The queen sighed, and pressed one more kiss to the shoulder in front of her.

"Go on, papa," she teased her husband. Xander pulled himself off the bed, landing his feet next to the cradle. He reached down and gently scooped up the prince, pulling the infant against his bare chest. With their child in his arms, the king carefully slid back onto the mattress.

"How's my son?" he murmured to his son.

Kana's cry was distracted by the deep rumbling of the king's voice, and he turned his eyes to his father. They were still watery, but it had caught him enough to sway the tears away. Corrin wrapped herself against her husband, smiling at the child. Xander pulled his legs up to an angle and rested the boy against his thighs.

"Look at him, I really think he's going to have your blond hair," she chuckled. Although there wasn't much hair to speak of at his age, the locks shone with color. Babies were always finicky with colors, but Siegbert had come with snow white curls immediately; Kana, however, had the sunshine tresses befitting his Nohrian blood. The prince had calmed, staring at his parents.

"Oh, but he has your ears. I think we have a dragon on our hands." He smiled. "Isn't that right, Kana? You've got your mama's ears!" He tickled the prince; at the sight of his father's smile, Kana also broke out in a gummy grin. He'd completely forgotten he was just crying.

"Speaking of dragons…" Corrin started, dragging her fingers against her husband's chest. Xander began babbling at the prince, who babbled back at him. In the presence of family, he allowed himself such frivolity. Kana tried his hardest to reciprocate his father, a big smile on the prince's face as he watched.

"Speaking of dragons…?" the King echoed, giving his attention to his wife now that his son wasn't crying. Corrin sat up farther, her shoulder now level with Xander's. She snatched the prince from her husband, and attacked the baby with a flutter of kisses on his forehead and cheeks; a happy coo came from the prince. The queen pulled back and rested her head on the king's shoulder.

"I really am sorry about that roll earlier. I could have dropped you." Her eyes were lowered. "I just forget that not everybody has wings."

Xander smiled and kissed her head. Only his wife would forget that humans can't fly. He reached to the bedside table, grabbing the colorful cotton ball there and handing it to his son. Kana was immediately enamored with the toy, doing his best to grab it and eat it. Xander pulled the ebony crown from his head and placed it where the ball had just been.

"Little princess, it's alright. I know it won't happen again." He'd resorted to using her dearest nickname to soothe her. He added with a quiet chuckle, "I'm sorry I don't have wings."

"No, Xander! Stop teasing me!" She put the baby back on his legs and buried her face in his chest. Oh, if he could have wings, that would be interesting. After all, Corrin's power came from her royal blood; maybe he had a dragon in him somewhere?

"I'm serious, little princess. Maybe I should have wings; I should mention it to Leo." He passed Kana back to his mother. It was almost time for him to eat, anyway, so hopefully the queen wouldn't follow him out the room. He climbed off the bed and ran through the door, in a race with himself to Leo's workspace.

"Visiting me shirtless, brother? Surely your desires for having a sibling bed with you stopped at Corrin?" Leo could jest like a master, not even taking his eyes off his work.

Xander scoffed, realizing he'd forgotten to don his shirt again in his hurry. He paid no mind to the taunt; he knew his siblings were happy about his choice for queen, despite their initial shock.

Since they'd destroyed Iago in the war, Leo had taken the rat's laboratory and made it his own. After several dead bodies were pulled out of it, the place wasn't so bad; just terribly dark, due to the absence of windows. Leo's studies piled over every desk; stacks of books and parchments rolled across the floor. An alchemy table sat in the corner with too many strange liquids, producing the oozing stench that permeated the room.

"You really should clean this place up."

"Any time spent cleaning the laboratory could have been spent working. Perhaps when the next generation gets old enough to use it, I will. The study of magic has eluded Elise, despite her high aptitude for the arts." He shot a glance around the room. "…It's not that messy, either. I know where everything is."

"What are you working on, now?"

"Odin was kind enough to give me some tomes from his homeland. I'm trying to recreate their power, but it's proving difficult."

"Ah… Should I come back? Or may I have a moment of your time?"

Leo gestured to a chair next to his desk; it was covered in books. Xander walked over, setting the book stacks on the floor, next to the legs of the chair. He sat down, sighing and crossing a leg over his knee. The king waited in silence for a lull before clearing his throat.

"So, do you remember when you studied Corrin's dragonstone? And her transformation?" Xander started. He took to drumming his fingers on the armrest of the chair.

"Yes, I do. What about it?"

"What exactly allows her to transform?"

Leo stopped scribbling on his parchment, dropping the quill and reclining in his chair. He laced his fingers across his stomach.

"It's in her blood. She has an unusually high potency of dragon's blood. Half, at least, is dragon; maybe more. Anankos' blood was purely draconic. I don't know of the late Queen Mikoto's aptitude, though.

"This, combined with a dragonstone - which raises her ability to resonate with the blood - allows her to become a dragon. It's also why bare transformations, with no dragonstone, are dangerous; if she drops the stone, her blood and ability to maintain the dragon drop as well, and she becomes human again. But without the stone, without a catalyst, there is no physical way to control how well she resonates with her dragon form. This makes it possible for her to never turn human again."

"What about us? How much do you and I have?"

"Hmm... Enough to interact with dragon veins: more than the average man. Are you planning to become a dragon yourself, Xander?"

"Actually, yes, that's the plan," Xander answered. Leo tensed, and turned his head and gazed at his brother. Xander returned the stare. The mage sighed, relaxing his muscles again.

"I won't say it's impossible," he mumbled. The king grinned, leaning towards his brother.

"What say you? Would you like to turn me into a dragon?" the king asked. Leo pursed his lips, trying to hide his smile; he tapped his fingers against themselves, a plot beginning to hatch in his mind.

"Absolutely."

Chapter 2 later this week. I have to finish going through the beta stuff
S/O to TheRepeat for beta-ing this for me. I've been crazy busy so they've been a big help to me! Go check them out, they write FE fanfiction too.