"Father."

Arthur and Merlin, in their human forms, entered the throne room shoulder to shoulder.

Uther put down his papers and looked at Arthur suspiciously. "Arthur." He completely ignored Merlin's presence.

"I seek an audience. I wish to discuss some things of importance."

"I see. I heard reports of an engagement between you and a certain young woman."

Arthur shifted uncomfortably. Merlin discreetly slid his hand into Arthur's.

"What on earth were you thinking? Marrying Sophia, a girl you only just met, without my permission?"

Arthur ducked his head, slightly abashed. "I apologize sire, but she had me under a spell. We sorted that out."

"We?"

"Yes father. This is Merlin. We seek your blessing."

Uther turned a shade of puce. "Blessing? That is utterly absurd. You can't marry him!"

"It's a bit late for that."

Uther's eyes bulged. "What do you mean by that?" His voice was icy.

"We received Merlin's father's blessing and we had our wedding two days ago."

"And who might his father be?"

Merlin gave his husband an encouraging glance. Arthur cleared his throat. "King Balinor of Atlantica."

Uther turned pale. "T-there is no such place."

Arthur looked at his father oddly. "Sire, I was just there. I assure you, it does exist."

The king shook his head. "I forbid you from continuing this union with- with Merlin."

"What's wrong father? He is a respectable prince and we love each other."

"You ask what is wrong? How dare you marry without my approval? How dare you disobey me and question my orders? How dare you even bring his kind into Camelot?"

"Father I-"

"You!" Uther turned his fury to Merlin. "You did this. You enchanted him!"

Merlin took an unconscious step back and opened his mouth for the first time. "Sire, I swear to you, I did no such-"

The king ignored him and reached for his sword. "What did you do to my son?"

Arthur stepped in front of Merlin. "Father! He did nothing to me."

"And how would you know that?"

"I know what it feels like to be ensorcelled, and this is not it. I trust Merlin with my life."

Uther sneered. "Then you are a fool. Sorcerers are wicked, magic corrupts, your precious Merlin is evil."

"You are wrong. I refuse to allow you to hurt Merlin. And I am not asking for your permission, I am only informing you as a courtesy." Arthur's tone turned cold.

"You cannot speak to me like that!" Uther hissed. "That boy has turned you against me."

"Then disinherit me. Banish me. I am welcome in Atlantica where at least we will be happy." Arthur squared his jaw defiantly.

"Balinor would never welcome you."

Arthur's eyebrows rose. "So now he is real."

At the same time, another voice spoke up. "I beg to differ."

They all whirled around to see the man in flowing robes striding to join them.

Uther's face drained of color. "Who- how-"

Balinor spread his arms. "Forgotten me already Uther?"

"Of course not." The king snapped. For the first time in his life, Arthur saw Uther looked cowed.

"Good. So you remember betraying me, killing all my kin, and hunting me across seven kingdoms." Balinor said in a calm voice. "And I see you've met my son, Prince Merlin."

"I have." Uther managed. "He is an extraordinary young man. Very charming."

Arthur snorted. Merlin hadn't said a single word or even made eye contact once with his father.

"Of course." Balinor replied smoothly. "So there shouldn't be a problem blessing Arthur and Merlin."

Uther reluctantly did so under the watchful eye of the other king.

"Excellent. I shall allow you to organize their living arrangements." Balinor made to leave. "Remember, Merlin knows how to kill a man with less than a thought. I would work on keeping him happy."

Uther narrowed his eyes. "Is that a threat?"

"I would take it as such. And it is certainly something that can be carried out if you so choose." Balinor turned to his son and son-in-law. "Visit soon Arthur, Merlin. Good day to you Uther." He disappeared with a swirl of sea spray and salty air.

Uther sat on his throne dumbfounded. Merlin and Arthur bowed out and left him to his thoughts.

"What. Was that?" Arthur asked the moment they returned to their room.

Merlin sent his husband a smile. "It's safe to say that your father is scared of my father."

Arthur gave him a scathing look. "Kings do not get scared. "

"Oh? And what would you consider what we just witnessed?"

"Father was being…passive."

"Is that what you call it around here?"

Arthur gave him a playful shove. "You are incorrigible."

"I'm sure Arthur, and do you know how to spell that?"

"Was that a blonde joke?"

"Only if you want it to be, darling." Merlin smirked.

"Oh it is on, sweetheart."

"You're such a prat!"

"Idiot."

"Clotpole."

"You are a girl's petticoat." Arthur said triumphantly.

"Why is it always the girl jokes?"

"And you have a fish's arse."

Merlin did know whether to look indignant or amused. "Yes Arthur." He explained patiently. "I am a merman. And last I checked, you rather enjoyed my arse."

Arthur pulled him close. "You're my merman."

Uther was true to his word and did not bother the happy couple. A couple years later, Uther died and Arthur became king with Merlin ruling beside him. Together they united Albion and brought magic back to the kingdoms. For the first time, merpeople felt safe to wander onto land and mingle with the 'two legs'. Merlin's parents, siblings, and Will went to visit him in Camelot very often during their long reign.

Arthur and Merlin returned to Atlantica for the other siblings' weddings. Percival proposed to his girlfriend, Columbia and Gwaine settled down with a sweet girl named Sirena. Lancelot and Ariel soon had a daughter named Melody. Gwen and Caspian also had a daughter whom they named Angel. After a few years, Balinor and Hunith found themselves grandparents to a total of eleven grandchildren.

And they all lived happily ever after.

The End

*Prince Eric probably got in a ton of trouble after the movie ended; Disney just decided to disregard that. And Lancelot/Santiago Cabrera looks a whole lot like Prince Eric so obviously he had to marry Ariel and have a daughter named Melody.