This won't be exactly linear, just a series of one shots about Hiccup + Valka getting together. Here we have their first time. With a little past for build up.

*ignores screaming pile of active stories for need of Valcup smut*

-HTTYD-

Hiccup stared up at the ceiling, laid on his bed trying to deny a long-held dark truth to himself. Even his pencils and paper betrayed him and his denial. His mothers face stared up from the page left open... and that was just the innocent version. Imagination and a love of drawing meant there had been considerably less PG pictures drawn. He couldn't seem to throw them away.

He could hear his parents having sex. It made him sick, made him long for an age when he could interrupt them. Even as a boy, Hiccup hadn't liked the grunting sounds coming from behind the closed door. He worried his mother was crying, would bang the door clutching a plushie toy and looking sad. Stoick would complain, but Valka would come and pick him up, wearing a hastily tied dressing gown and lavishing him with cuddles and kisses.

"Did you have a bad dream my darling?"

Hiccup would nod, see his father scowling from the bed. Even then, it had been a contest. Hiccup just hadn't known what kind. He just wanted his mothers attention, and taking it away from his father was the best time to do it. Whenever mommy was alone with daddy, Hiccup had to do something about it.

He hadn't known the term 'Oedipal' back then.

As he got older, Hiccup got away with it less. By the time he was eleven, if Hiccup interrupted them in bed he would be sent away. His mother always apologised and cuddled him the next day, explained it only as 'mommy and daddy need alone time' but even then, he knew Valka didn't like saying it. His father would always tut, look at his skinny beanpole of a son. It was about then Hiccup started noticing it wasn't just her attention he craved.

"Momma's boy."

"Stoick!"

"What? He is! He'll never toughen up if you coddle him."

Hiccup curled in closer to the soft smelling cotton of his mothers dress, hid from his father in her long arms. Valka stroked his messy hair, cradled him gently.

"He's just a boy. You can't force him to be just like you."

Grumbling, Stoick left for work and Hiccup waited until he heard the sound of the big family truck starting up before he unfurled. Valla kissed his hair, stroked his face until Hiccup smiled.

"What shall we do today my dear?"

Hiccup pondered, chewing his lip in thought as he watched their cats batting toys around the floor while dogs slept in the sunshine.

"Can I do your hair?"

Smiling indulgently, Valka nodded and lifted him from her lap, placed him on his feet. He loved playing with her hair and she always let him if he asked. It was longer than it had been when he was five and first started learning how to braid her hair. She put little braids in his hair too, and he kept them until bath night made them come out.

It smelled so nice, felt so silky. Hiccup leant in, nuzzled his face against it and hummed happily like a purring cat. He took a deep inhale, filled his lungs with her scent and, to his surprise, felt an unusual tingle low in his belly.

"Hiccup? Are you alright?"

"F-fine."

Hiccup undid his work, brushed out the waves and clambered down from the side. The strange tingle didn't abate. If anything, it grew stronger when Valka touched him to check he was ok, ran her fingers through his hair and stroked his cheek.

"What's wrong?"

She always knew.

"I-I don't feel well."

That was all Hiccup could say to describe it. It was true, he felt strange.

"Come on, lets get you to bed for a lie down."

She fussed around him, checked his temperature and tsked as she said he felt flushed. Hiccup couldn't help but smell her again, her hair brushing against him as it stayed loose while she put him down for a nap like he was a babe again, not an eleven year old boy.

"Call me if you need me love."

Hiccup nodded, shifting uncomfortably as his trousers felt strange. He wasn't sleepy, but when he tried to settle dreams came for him anyway. Terribly confusing dreams, filled with images he didn't quite understand and Hiccup bolted awake sweaty, heart pounding and his bottoms wet, sticky. Something about it made him feel ashamed, embarrassed and rather than go to his mother as he often would, Hiccup got up and changed his clothes.

The cycle continued. At first it only happened when Hiccup played with his mothers hair, and so for a while he tried to do it less. Then the feelings started to come when she kissed his cheek, if her lips caught the corner of his just right. By the time he was thirteen, Hiccup dreamt of his mother almost nightly, but the boys at school never said they did. He must be weird.

He kept quiet.

Without Valka's knowledge, Hiccup's father gave his son a stack of magazines, told him he was getting older. It was a confusing conversation, and Hiccup sat wide-eyed as he went through the images splayed across glossy pages. He didn't like many of the ladies in the magazines. Only the ones with long reddish-brown hair, or big green eyes. The tall, slim ones he could enjoy if he covered their faces.

Porn only made his dreams of his mother... worse. Now he had an understanding of the dreams. Of what it meant. Of what he wanted from his own mother. At fourteen, Hiccup understood it was wrong. Had sort of known for a while now. Valka kissed him differently to how she kissed her husband. Nobody on TV ever lusted after their mother.

Hiccup still did her hair. He just hated himself later.

In his deepest, darkest moments, Hiccup would imagine she wanted him too. Fantasies of taking his fathers place in bed were all that kept Hiccup from just crying at night when he heard them together, seething with jealousy as he stroked himself to forbidden images.

When his mental images weren't enough, Hiccup turned to drawing. He knew from 'accidental' glimpses as she left the bathroom or "oops didn't know you were in the bath" moments what his mothers body looked liked. So he could draw her. Draw her with him, naked and entwined as mother and son never should be. Hiccup tucked away the drawings under the barely-used nudie magazines, filled with women who didn't compare to Valka in the slightest.

He was eighteen, sickeningly lusting after his own mother and Hiccup knew he was a monster for it. But he couldn't fight it. Could only hope to contain it. Times like now, when he could hear them in bed again, Hiccups stomach churned with nausea and jealousy. He longed to be the one who took her to bed, who kissed her body and made her moan. He fell asleep with angry tears on his cheeks, cock softening against his thigh after he inevitably caved to stroking himself in time with the moans of his mother.

The news his father was leaving on business was hugely welcome, if only so Hiccup didn't have to hear them together for a few days. He briefly feared that Valka was going too, but she was still there when Stoick had lugged himself and a massive suitcase out of the door. Hiccup found her petting one of their hamsters, several cats circling in interest though none would actually dream of attacking.

"Hiccup?"

He had been about to escape after guiltily looking at her for longer than he should, appreciating the silhouette of her body highlighted by sun shining through the light blue dress she wore. He halted as she called out, turned back toward her.

"Yeah mom?"

Placing Scuttle back in his cage and latching the little metal door, she crossed the room and placed hands on his shoulders. So close, her scent filled his lungs, sparked arousal low in his belly.

"Is everything alright?"

He nodded, hoping she would let him go before his body gave away his sickening desires.

"Are you sure? You've been so distant lately son."

Hiccup shrugged, accidentally dislodging her hands and his heart twisted in his chest at the hurt in her eyes.

"It's not you mom. I swear. I'm just... thinking about stuff. Need to decide things, you know?"

She made to reach for him, then clearly thought better after Hiccup had already shrugged her off. He felt even guiltier.

"I'd hoped we could use the time your father was away to spend together, but since you have better things to do..."

Turning away didn't hide that her eyes were wet, couldn't mask that her voice grew thick. As though she had a lump in her throat to match Hiccups. Though he should be pushing for distance, Hiccup couldn't stand to be the reason she looked so sad.

"That's not... not what I meant. I'd like that too."

The pure hope and joy on his mothers face made any of his discomfort worth it. His sick lusting didn't mean Hiccup could be a bad son. He owed her better than that. This woman had birthed him, raised him. Defended his right to be himself and not just an extension of his father.

"Really?"

"Really."

They spent the next couple of days out in the fields, and it was good. They worked the vegetable patch, which was miniscule compared to the available green space but sufficed for the three Haddocks. They had the rabbits out on the grass; they had extensive runs available but you couldn't beat nature sometimes.

If he didn't have to fight not to go to his mothers bed, if he didn't come with her name on his lips each night.. Hiccup could almost pretend he was normal.

After another day of good, clean fun, Valka set up their firepit with some fresh firewood, and Hiccup cooked the meat they had over it. Ill-advised as he thought it, Hiccup accepted the ale his mother offered. It complimented their meal, at least. As they sat digesting, flames helping make the two warm and lazy, Valka turned to where Hiccup was slumped against his seat ungracefully.

"Son?"

"Yeah?"

"If something was bothering you, you would tell me wouldn't you?"

Hiccup wished he didn't have to lie. Smiling in a way he hoped was reassuring of his honesty, he nodded tightly.

"Of course."

Valka smiled, leant over and kissed his cheek. She caught the side of his mouth, and Hiccup would have been lying if he said it was an accident that he turned 'too soon' and his own lips slid across hers, added a brief pressure. Just once... Valka pulled back, a flush across the high arch of her cheekbones. She stood, mumbling something about the bathroom and all but fled.

His head fell back and Hiccup groaned, then forward as he buried his face in his hands. What had he been thinking? The alcohol wasn't to blame; two drinks wouldn't leave him drunk. After ten minutes of wandering if his mother would brush it off, Hiccup accepted she wasn't coming back out. He doused the fire, picked up the mess and took their plates and cutlery back into the house.

Still she was nowhere to be seen.

Hiccup washed his face, brushed his teeth. Ignored the shame burning his throat, stinging in his eyes and resting like an iron weight in his gut. He put on pyjamas, shooed three cats and a dog off his bed so he could get into it.

It was too early for bed, but Hiccup was done with consciousness if it was where his mother hated her depraved, Oedipal son. The sky had gotten dark enough that the sun wouldn't keep him awake, at least.

When Hiccup rose the next day after a fitful night of little sleep, his mother was undeniably cool toward him. She didn't outright ignore him, but given how she had said she wanted them to spend time together, it no longer felt like it. He spent his time with their horde of animals, or out walking around to give his mother time to feel safe without his deviance beneath their roof.

For the first time, Hiccup was glad his father was home. Someone to keep Hiccup in check. The sickness he felt when he heard them again that night was well-deserved. He was sick, after all. Terribly so.

Valka wouldn't meet his eye. No longer sought him out to ask his opinion on her latest painting. His own artistic impulses were numb, the want to create gone clean out of him. Valka had given him art, taught him to draw and spent countless hours painting with him. He couldn't feel right using that now she didn't love him anymore. Not that Hiccup blamed her. She wanted a son, not a lover.

Each time Stoick left for work, Hiccup made himself scarce quite quickly before Valka worried he would try something else.

Until one morning, one otherwise unremarkable day where Hiccup continued to loathe himself... Valka stopped him. Her slender fingers around his wrist were the first physical contact they had had since... he shook away the thought. Tried not to dwell on how starved of tactile affection he was without mothers daily hugs.

"What was it?"

"What was what?"

Her eyes held his, sharp and keen.

"You know what Hiccup."

Off-kilter with the suddenness of her re-establishing any contact whatsoever, Hiccup couldn't lie and only just managed to quash a full confession of his sexual deviancy.

"I can't... I can't tell you. You'll hate me."

He turned away in shame. Pulled his wrist free of her grip. Valka made no move to stop him, and he knew she knew. Hiccup moved quickly, putting as many rooms as he could between them until he ended up in the bathroom.

A shower. That was a good idea. Maybe then he wouldn't feel so dirty.

Shaking fingers started on his clothes, working buttons and zippers loose until he was stood in his boxers, leaning over the side of the bath to twist the dial for hot water. The bathroom door creaked open behind him, and when he turned Hiccup found his mothers face dangerously close to his own. Hiccup was very aware of his near-nudity.

"Mom?"

Her own fingers trembled as they touched his face, stroked along his jaw for a second.

"This is wrong of me."

His heart pounded. Despite sense, Hiccup dared to hope for just a second she felt the same.

"What is?"

"Wanting you as I do. My son."

It was probably even more wrong that the way she said 'son' made Hiccup's gut tighten with want, unsure if it was the steam filling the room or her proximity making him flush. He was leaning toward Valka, figuratively and literally.

"Then I'm wrong too."

He must be dreaming. Because his mother was kissing him, or he was kissing her, and Hiccup wasn't being slapped or shoved away. Except she was pressing him against the counter, and the biting cold digging into his back painfully told Hiccup he was wide awake. Her hands fluttered around, trying to settle as they moved from upper arm to shoulder to chest, settled on his hair and held Hiccup's head tight to keep him there.

They kissed until they were dizzy from lack of air, stopping only when blackness bit at the edges of consciousness to suck in ragged breaths. Her fingers sat meshed in his hair, a flush ran up her neck to her face.

"Mom, what's happening?"

He needed clarity before he lost the last of his reason.

"Everything."

Her mouth slammed on his again, and if Hiccup had a seconds doubt she put paid to it when she ground against his erection, dragged her nails across the back of his hip to leave burning marks in her wake. Having imagined every possible combination their bodies could come together in, Hiccup made to remove her clothes too. His fingers itched to explore her.

Their underwear had barely hit the ground when Valka pulled him beneath the hot spray of water, where they could pretend their sins would wash clean. His lips latched on to a soft, yielding breast and Valka moaned, arched into his mouth and her hands scrambled for purchase against nought but slick tiles. Weak knees had them both tumbling to the bottom of the bathtub, her naked body resplendent covered only by water and her sons needy hands.

Valka took the brunt, let him press her to the bottom of the tub and he leant over her. The shower beat steadily against his back, water dripping off his arms and shoulders to run over her breasts. Her chest heaved as she looked up at Hiccup, her eyes bright and wanting. He used his knees to part her thighs as much as the tub allowed, lowered himself awkwardly; his imagination was the only place Hiccup had had sex before.

She knew though, and his mother guided him. Wrapped her slick hand around his pulsing cock, cooed soothingly when Hiccup all but yelped at the electric feeling of her touch on his swollen, sensitiive shaft. Valka moved herself, encouraged him forward and before Hiccup could dare think about what was about to happen, he was inside her.

"Fuck!"

A swift slap landed on his wet backside. His hips bucked, the thrust breaking Valka's chiding

"L-language!"

His mother was all heat and slick and quivering muscles. Hiccup surged between her thighs, instinct and sheer need winning out over inexperience. Valka met him, water filling itself in to every gap they made as they moved against each other to make sloppy, guttural sounds surround them. It was fitting as they sullied each other beautifully, taking something the other willingly offered but that could never be given back.

Hiccup slowed, stopped as he forgot how to breathe under the sudden realisation of what he was doing. Valka pitched, protested as she clutched him tight.

"H-Hiccup, son, move!"

She bit him and he thrilled in the spark of pain, spurred by the knowledge that mark would tell him this was not all a dream when the steam faded. He thrust, clumsy and lacking any finesse but it made his mother moan, made her legs tremble against his own. Hiccup watched her face, her wet chest, slid the hand not pressed against the far end of the bath over a slick belly to feel where their bodies joined.

The magazines had taught him some things, like where a woman needed to be touched to feel good. Hiccup watched his mother devolve, a feral cry tearing itself from her throat when he pressed on her clit and she bucked so hard Hiccup was almost dislodged in his surprise.

"That's it Hiccup, make mommy come!"

It should have sickened him. But Hiccup felt the familiar heat low in his gut, knew his own climax threatened to overwhelm before his mother was granted her own primal pleasure at the height of ecstasy. Hiccup wanted to feel her come on his cock, to know he was responsible for her pleasure in the way he had wanted to be since puberty's claws first got hold of him. Took a boys love for his mother and made it a monster.

Her gasps and groans didn't sound like they did when she was with his father, but Hiccup didn't want to think of Stoick and pushed the thought from his mind. Focused instead on how each thrust had him sliding back into the wet, molten Valhalla of Valka's body. How his cock was throbbing, swelling and hypersensitive in a way it had never been when he was... alone.

Hiccup moved his fingers faster, leant down and kissed her wet, swollen lips. Drank his mothers moans down. She coiled, tighter and tighter until he could barely even thrust. Then she broke, shuddering and clutching at her son, muscles spasming on his cock and Hiccup hungrily watched her every response. He made her come, it was a moment he had to commit to memory.

As Hiccup was pulled to the edge himself, he reared back and slid free of his mother just in time to come over her belly, splashes landing up on her still-heaving breasts. He pressed his erection to her clit, rode out the last few paroxysms with her burning heat on his shaft. The sight of her painted with his ejaculate was another moment he'd remember forever.

"You're mine. Not his."

He growled his words, and Valka nodded with dilated pupils and parted lips. As his blood started to cool again, Hiccup felt spent, almost empty and his perfect mother reached for him, cradled her son beneath the shower spray. She petted his hair, cooed in his ear as his raw nerves sparked randomly.

"It's ok Hiccup. I'm yours son."

"You sound different."

She frowned for a second, then realisation lit her face.

"With you, it's real."

"And not with him?"

Valka shook her head, leant back just enough to kiss his lips rather than the side of his jaw.

"He can't make me feel the way you do."

They rinsed beneath the spray, but Hiccup knew there was little point as his mother took his hand, led him to bed.

When Stoick came back from work that evening, he had no idea of the events that had transpired. Could only see that Hiccup was curled up beneath a blanket, head pillowed on Valka's lap and he feigned sleep in the hopes she wouldn't move.

"You spoil 'im."

"Oh hush Stoick" gentle fingers brushed hair off his face "he looks so peaceful."

"He'll never man up if yer keep letting him be mommys little boy."

Valka tsked, shifting slightly but not moving Hiccup.

"He's not a boy, and I'll not apologise for loving my son."

Hiccup had to fight not to smirk as his father grumbled. They were way past apologies.

-HTTYD-

Ah, Valcup smut. My favourite (after Vlad/Ingrid of course)