Hiccup is ten when his nature first starts to show in his scent. His father gives him a special soap to dull it.

When he's twelve he starts to notice the other kids and how differently they smelled from him. Betas and Alphas, and the occasional female Omega. He doesn't ask why there are no other boys like him.

When he turns fourteen he has his first heat. His father tells him to stay in his room and keep the windows shut tight. There's an awful smelling plant put just below his bedroom window that helps cover his scent. When people ask questions, his father always calls his son a Beta. Hiccup knows now that an Omega son isn't what his father wanted.

There's an Alpha girl who lives down the street named Astrid. His father says that she's a skilled warrior, and Hiccup wonders if he should be pursuing her. But no scent on the island, certainly none of the women, have ever caught Hiccup's attention.

When Hiccup wakes a few weeks past his sixteenth birthday, he knows his heat is about to hit him again. But he has duties to his village today, so he just bathes himself with an extra helping of the special herb soap that masked his smell and runs out to meet his father at the docks. The Berserker tribe is visiting today for the treaty signing, and because he was the chief-in-training, his father decided it was time he started learning about their allies and enemies.

When the ships stop, Hiccup straightens up. There's a scent that he remembered, but nothing that had ever affected him like this. It smelled like the forest and the blacksmith shop and decidedly Alpha. The planks dropped and the scent only grew stronger as a tall man, barely out of boyhood, came sauntering toward them. A small sound starts in the back of his throat until a strangled, muted whine escapes. His father gives him a sharp look, and Hiccup barely manages to choke out the word 'sick' under his breath before running. With luck his father would be able to smell what was wrong.

Hiccup flew up the hill to his home, scrambling into his bedroom and throwing the door closed behind him before diving on to his bed. A whimper tore from his throat as he shoved his hand down his pants without any preamble, back arching as he bathed in the lingering memory of that scent.

Back on the docks, Dagur the Deranged stared at the house Hiccup had disappeared into with a curious frown. The Beta boy usually was dragged along with him while their fathers dealt with the treaty. It wasn't usual for him to run off, especially considering Dagur hadn't even pulled a knife yet.

So maybe Dagur snuck away from his guide and maybe he found himself standing outside the chief-to-be's bedroom window. His father had always warned him that curiosity killed the Nadder, but he really couldn't help himself.

There was an awful stench coming from the house that made Dagur's nose burn and itch, but he forgot it almost immediately when he heard a low, whining moan. Without seeming to think about it, Dagur found himself scaling up the wall to the window, landing in the younger boy's room on the balls of his feet with barely a creak in the floorboards. The new scents that assaulted him had a deep growl rumbling in his chest. With his pants half down and a desperate twist to his features, Hiccup was curled by the headboard of his bed. Two of his fingers were pressing in to his slick hole as his other hand tugged insistently at his member, his hips rocking between the two like he couldn't decide which he wanted more of.

Dagur scented the air again and snarled, making the would be chief jump as he finally noticed his presence. His hips stuttered to an almost reluctant stop, but Dagur was sure he saw him continue to hook his fingers as he shivered and tried to look smaller.

"You lied to me.. Omega." Dagur growled lowly as he inched forward, still taking deep lungfuls of Hiccup's scent. The brunette gave a small whine at Dagur's threatening tone and posture, baring his neck in submission like his father told him never to do.

"Alpha." Hiccup practically sobbed as Dagur approached, his hips still jolting every few seconds as he managed to strike his prostate. "Alpha, please, need-" he tried again.

Dagur was close enough now that he could half climb on the bed, his knee resting on the edge while his hand came down beside Hiccup's head. His nose dragged along Hiccup's neck, taking a deep breath of his heady scent before his teeth nipped tauntingly at his jugular. Hiccup shuddered and lifted his hips in invitation, crying out in desperation as his neck arched back further. Dagur growled possessively and pressed closer, rubbing his scent along the smaller boy. Without another word, he flipped the Hooligan on to all fours, pulling his hips up sharply and rocking forward.

Hiccup gave a plaintive howl as he tried to buck back against him, until Dagur's teeth set on the back of his throat. They didn't dig in, but they pressed against his skin in warning until Hiccup stilled. The Omega whimpered softly and spread his legs a bit further in offering. He felt a smirk spread across his skin before Dagur's hips pressed forward again. In the haze of heat, it took a few moments before the Berserker actually managed to find his hole, before he drove in almost violently.

Hiccup howled, his face pressed against the bed. The teeth on his neck kept him nearly immobile, instinct telling him to stay still and let his Alpha breed him. That didn't stop him from crying and whining as Dagur fucked him roughly. All too soon, he felt.. something start to swell inside him, trapping the pair together even as Dagur continued to thrust, dragging Hiccup along with him. The Omega yelped as he was pushed and pulled like a rag doll until Dagur came with a roar, Hiccup following shortly after. Dagur's teeth finally pierced through Hiccup's neck to mark him. The pair fell forward on to the bed together, Dagur rolling to the side after a moment so he didn't crush him. Dagur's teeth extracted from his neck a few seconds later and Hiccup mewled, trying to squirm away. He tried to tug away from the place where they were locked together, only to have Dagur hiss and drag him back.

"Stop that. You have to stay still." His voice growled in his ear. Hiccup shivered and shifted again.

"'s too big. Hurts." He whimpered. And gods did it burn. He couldn't say it was all that bad, but it certainly wasn't as good as earlier had felt. He was stretched too wide, filled too full.

Hiccup felt Dagur frown against the bite on his neck, before he shifted them, almost gentle as he pulled Hiccup closer. "It'll go down soon. You just need to relax." He all but purred in his ear, nuzzling at his neck to spread more of his scent. Hiccup whined again but leaned back against Dagur's chest. "Did no one ever explain sex to you?" Dagur wondered out loud, sounding a bit annoyed. Hiccup blushed and shook his head.

"I'm the only boy Omega.. They.. Heh, I think that they just didn't know what to do with me." He said quietly. Dagur gave a small purr and nuzzled him again.

"They don't know what they're missing. You're kind of cute when you blush." Hiccup squeaked and covered his face until Dagur grinned and tugged his hands away. "Relax. It's okay. It was a bit of a dick move for me to mate you without you knowing though."

"Ah.. M-Mate?" Hiccup asked shyly. He'd heard that word before, but no one had really bother to explain it to him. He just knew it made him feel warm inside, especially when he saw 'mated' pairs together in public.

"Oh wow, you really don't know much." Dagur huffed, but his annoyance didn't seem to be directed at Hiccup. "Um.. Boyfriend? Husband?"

"That's how Betas talk about each other." Hiccup mumbled. "What does that have to do with.. this?" He asked, wiggling his hips a little. Dagur gave a quiet growl as he carefully pulled out. Hiccup whimpered and grabbed at his hand tightly as the sudden emptiness left an ache between his legs.

"It's like that, but.. stronger." He said, speaking slowly, as if to a child. "When an Alpha knots an Omega and marks them," his fingers trail over the bite mark on Hiccup's neck. "they sort of.. bond. It takes a lot to pull them apart after that, but it isn't impossible." He looked upset by the idea, but didn't say anything further. Hiccup had a curious frown on his face as he reached back to touch the indents in his neck. "So, this.. makes us mates? What does that mean?"

"Well.. For all intents and purposes, it means we're married."

"Hiccup!" Both boys jumped as Stoick' voice rang through the house. Dagur jumped to his feet and scrambled to yank his clothes back on.

"H-Hey!" Hiccup protested meekly. Dagur frowned.

"It's alright Hiccup. I'll be back soon." He promised. An almost pained look crossed his face for a brief moment. "You should take a bath. Your father won't be too pleased if he smells me here." Hiccup whined, but nodded after a moment. Dagur smiled and leaned down to kiss his forehead. "I'll come back soon. Félagi minn, hjarta mitt, mitt eina sanna sál." He murmured against his skin. Hiccup didn't have time to ask what he meant before the Berserker chief had fled out the window.

"Hiccup!"

"Y-Yeah, I'm up here dad!" He hesitated for a second before he pulled himself out of bed, limping to the bathroom. "I'm gonna take a bath, I'll be down in a while." He shouted down the stairs. It took a few moments before he worked up the nerve to actually grab the soap and start washing himself. It set his teeth on edge for some reason, to try and erase Dagur's scent from himself.

Almost an hour later, when he could feel his rear end again and couldn't smell Dagur anymore, Hiccup redressed himself and went downstairs. His father had some fish roasting over the fire and he looked up as Hiccup came in and sat down.

"What happened to you today?" He asked, not bothering with the formalities. Hiccup hoped he wasn't blushing.

"Ah, yeah, sorry dad. My heat kind of hit me out of nowhere. Won't happen again." He said quietly. His father just grunted and passed him a fish. Hiccup ate in silence for a few minutes before his curiosity got the best of him. "Hey, dad?" He repeated the phrase Dagur had whispered to him before fleeing and asked if he knew what they meant. Stoick give him a confused look.

"Where did ya hear that?"

"I read it. In a story I got from Trader Johann." Hiccup made up quickly.

"That's an odd choice in books boy." His father said with a raised eyebrow. "It's an old Bersek saying. It means 'my mate, my heart, my one true soul.' It isn't something you hear in everyday conversation." Hiccup had to cover his mouth to hide a large smile, a little laugh escaping him. Dagur had said that?

"That's beautiful.. Why is it not something you hear a lot?"

"Because it's considered a very intimate endearment. Mates say it to each other in private." Stoick tore a hunk of fish off it's bone and spoke again a moment later, picking a small bone from his teeth. "Why all the interest in romantic stories?"

"I-I dunno. I guess I was just curious. About, y'know.. sex, and mates and stuff." He mumbled.

The pair didn't speak again that night.