The name for Toothless' sister-in-law was suggested by Kirika. Toothless' brother's name was suggested by StellaWolf. Thank you both for those suggestions.
Right after the tale was told to the entire nest, this time with Hiccup holding nothing back, not even his thoughts and feelings during the whole thing, Toothless' father looked down at the lower ledge. The male then turned to Toothless.
[Son, those three younglings staring up at you, who are they?]
[My sons, Father,] Toothless replied.
[You found them?!] Toothless' sister-in-law exclaimed, moving to the edge to look down.
She chittered and bounced in place. Her wings flared and she glided down. Hiccup watched his nephews edged away from her and huddled in the space between Astrid and Moondust. He saw Stormfly move over and the younglings backed up until they had all three in between them and Toothless' sister-in-law.
[Sons,] Toothless called down, [she's your aunt.]
The sister-in-law immediately laid upon her belly and crooned softly. The Sand Wraith youngling that Stoick wanted to name Sandtooth, but Gothi's etched Sandblast won out, padded forward. He was the smallest of the three younglings but was the more outgoing. His brothers were not lacking in boldness though, and Hiccup would well attest to that. They just got nervous around new people and dragon. An entire nest they had never seen before certainly qualified as new.
Sandblast laid down, placing is muzzle near, but not touching his aunt. Toothless' sister-in-law cooed. Sandblast returned the coo. Toothless' sister-in-law chittered happily, rolling onto her back and letting her wings lay flat to either side of her body. Moondust had to stepped back to allow for the move. Sandblast lifted his head, tilting it. He warbled questioningly. Toothless' sister-in-law chirped. Moondust lowered her head and trilled something comforting. Sandblast shuffled forward, keeping his belly upon the stone and nuzzled his cheek against his aunt's. She cooed happily. Sandblast lifted his head, looked over his wing and chittered to his brothers.
Sliverfire, the red and silver Nightmare youngling moved before Spikestorm, the yellow-orange Nadder did. Both ended up beside Sandblast. Toothless' sister-in-law stayed upon her back. Sandblast snorted.
[Aunt,] he said, [that can't be comfortable.]
Toothless' sister-in-law giggled and rolled to her paws. All three younglings looked up at her then shifted their gaze to Moondust.
[Mama,] Silverfire began.
All three started calling Moondust, Mama as soon as Toothless told them of the courtship. It did not matter to any of three that Toothless and Moondust were not in a mate-hood. All three believed such an event was inevitable and thus said she would be their mama from now on.
Hiccup saw Toothless' sister-in-law's sensing lobes lift and twitch as she turned to Moondust.
[Mama?] she asked, her tone amused.
Moondust snorted. [Toothless is courting me.]
[Told you so!] Toothless' brother shouted down from the ledge.
[Son!] his mother cried.
[What? I did, Mother.]
[That's not how we act when welcoming others to the nest.]
[Aw, Mother, can't I gloat just a little?]
Toothless' mother sighed and shook herself. Toothless' brother chuckled and moved to nuzzle her. She batted his foreleg with her paw gently, but Hiccup heard her cooing. Toothless' brother stepped back but upon catching Hiccup watching sent him a wink.
[Now don't you be teaching your little brother bad habits either, son.]
[As if I would do that!]
Toothless' father chuckled. [As entertaining at this is, the time grows late. I'm sure all who have come with my sons are tired after their flight. Daughter, bring them up here and we'll retire to the chambers.] He looked out over the other dragons. [Thank you for being here to welcome my sons and their flock. You are all dismissed.]
Hiccup saw the other dragons bow to Toothless' father, wings spread wide before shuffling through openings at the back of the ledges they stood upon. Toothless' sister-in-law, his sons, and the others on the lower ledge rose into air after the humans climbed into their dragon's saddles. Toothless' father and mother turned, heading for the opening behind them. Toothless nudged Hiccup gently and he followed. He heard dragons land upon the ledge and heard his friends dismount.
He was not surprised when Astrid moved to walk at his side. He saw Toothless' mother glance over her wing and wink at him before she and Toothless' father turned a corner and headed up a sloped tunnel. Night Furies standing to either side of the tunnel bowed as they walked by.
Soon they came upon a smaller cavern than the one they had left. It looked to be the same size as cavern the nest dragons used at the Hatchery. Hiccup could see the deep darkness that said there were openings at varying intervals along the wall of the bigger cavern.
Toothless' father and mother walked into the bigger cavern, past two more bowing Night Furies. The father turned and looked at those behind him.
[These are my flock's chambers,] he said. [I already expected my children, all of them, to sleep here. I welcome all of you to sleep here as well. I would love to get to know all of you while you are visiting.] The father paused and looked at Toothless. [Your sleeping den awaits you, son.]
Toothless warbled something that sounded as if he was touched by his father's words. Hiccup smiled and ran his hand along the top of his brother's head.
[Um,] Silverfire began, causing everyone to look at him. [I have a question.]
Hiccup smiled. Sandblast would always be the first to act out of the three but the others, once assured, would step up and speak if they needed to.
[Go ahead, my grandson.]
[Dad's name is Toothless. Mama's name is Moondust. Uncle Alpha's name is Hiccup. Aunt Lady Alpha's name is Astrid. All of Uncle Alpha's inner circle have names as well. Our human grandpa has a name. My brothers and I have names. Uncle Gobber named Aunt Spitfire. Um, I was just wondering what your names are.]
[That is right,] Toothless' brother said, looking at Hiccup. [You said you would think up some names for us.] He tilted his head. [Have you?] he asked copying Toothless' gummy smile.
"You still don't mind if I name you?" Hiccup asked.
Toothless sister-in-law moved over and nuzzled against him. [I told you, little brother, that I would love a name picked out by you.]
Hiccup blinked but smiled. "Well, Gyda suggested your name and Hoark, our shipbuilder, suggested his name. Gyda said you reminded her of the calm wind that would breeze through her cave so she suggested your name be Haizea, as it meant wind in a language she knew of." Hiccup looked towards Toothless' brother. "Hoark said your wings were a darker black than Toothless so he thought your name should be Shadewing. Neither of you have to keep them if you don't like them though. I can find other names."
[I love my name,] Haizea said.
[So do I,] Shadewing added.
[Well,] Toothless' father began, [I hope you know your new mother and father would also like some names picked out by you, son. Although, you're gonna need three new names in total.]
"Three, sir?" Hiccup asked.
He moved to face the male Night Fury but Haizea cooed and nudged him towards one of the deep dark openings. Hiccup frowned but let himself be guided over. At the entrance, Haizea opened her mouth and let her fire rest in her throat. Hiccup peered in and gasped upon seeing a solid black egg the size of his foot resting upon what looked like flowers and leaves from the big meeting cavern. Hiccup turned to Haizea.
[We were hoping you would get here before the egg hatched as we both wanted our hatchling to meet all of the flock.]
Literally Nobody: I have seen HTTYD 3. I agree that the first one was the better of the three. I am glad and humbled that your first move after watching the movie was to catch up on my story. I enjoyed the movie, but out of respect for those of my readers who have not seen it, I won't give an opinion on it as it would probably include a few spoilers.
Kirika: Hey, welcome back. And yep, Hiccup gains more allies and a whole new flock. Amazing what one small act of mercy will do, eh?