Ah yes, a threesome I always mean to make more of and get sidetracked.

But! I found an old prompt jotted down for them, and here we are!

So, if you clicked through and missed the notice - Hiccup/Valka/Astrid that includes Hiccup/Valka incest.

-HTTYD-

The screen was fuzzy at first, but the image soon cleared. Knowing they'd be largely restricted to this sort of contact while Astrid was travelling for her work on and off that year, both had invested in high quality webcams. Astrid was puttering around in the background, sending a text to her colleague that she was Skyping her boyfriend and would not appreciate an interruption. Hiccup smiled as he watched her, eyes flicking to the side of the little one that showed him. Not yet.

"Be with you in a minute babe!"

"Take your time! Your ass looks great from here."

Astrid turned, the high quality picture capturing something of her smirk in the distance before she bent further forward and shook her ass at him. Hiccup laughed, continued watching and heard the creak outside on the landing.

It was Astrid that first noticed. Hiccup had been a little... distracted. They'd talked about it over instant messages rather than speech that could be overheard. It seemed to give Astrid a feeling of liberation, because she'd gotten drunk and admitted something a little out there. Hiccup had been hesitant for a while, but the idea was like a bug, biting down and refusing to let go until he found himself agreeing. It might all go disastrously wrong yet, but...

The creak stopped. He caught a glimpse in the very edge...

Here.

He typed out to Astrid, who turned to the beep but didn't immediately rush over. That would have been suspect, he assumed. Rubbing the inside of his thigh, Hiccup felt himself swell and twitch, ready, waiting. Astrid was usually quick toward the action, then they'd talk after - a poor substitute for being physically next to each other, but so much better than nothing.

Fabric hitting the floor caught his ears, almost looking behind him but not intending to ruin Astrid's game. She was undressing, jumper on the floor and her business clothes beneath - white shirt and black trousers - were casually tossed over the back of the sofa just out of shot. Hiccup knew the routine by then. Astrid settled in her chair with a bottle of water, winking as she checked things like wipes and tissues. Her smirk grew wider with Hiccup's eyes when she held up her little toy box.

Hiccup was in for a show.

Or maybe it wasn't for him.

Am I on full screen?

Astrid tapped out, and Hiccup typed back confirmation - she was as much of the screen as the program allowed. Only a small rectangle that showed himself and a little chat window for typing marred the full-screen view of Astrid's almost-nude body. Both getting comfortable in their chairs respectively, Astrid nodded toward him.

"Shirt off handsome."

"Handsome? You looking at someone else?"

She laughed as he took off his top, scratched his chest idly before settling back in place. Hiccup hoped Astrid was willing to get them both going properly, because he was a little nervous. Not enough to stop, but enough that he did worry a little that something could go terribly wrong.

"I couldn't stop thinking about you today. Trying to pay attention to a really boring boss when my mind was just full of how bad I want your cock" Hiccup bit back a groan - Astrid wasn't starting slow! "I thought about skipping that meeting to go get off in the bathroom."

"Seriously?"

"Seriously. I was so horny earlier. I almost had a quick go before bringing Skype up, but I was back late and figured it would be better with you. Which reminds me."

Astrid reached behind herself, unhooking her bra, smirking as she saw Hiccup's eyes drop to her bared chest. Even through an internet connection, even though he'd seen her naked countless times both on screen and in the flesh, Hiccup was still potently affected by Astrid's bare skin. Her hands came up, squeezing gently, kneading at the plush mounds with soft moans.

"Can't wait til it's you again, your hands are so much bigger" Astrid curled her hands, fingers sliding up to toy with her nipples and Hiccup stared hungrily "and feel so much better."

He watched, hypnotised by the show of Astrid playing with her breasts, pulling at her nipples and keeping up a steady stream of wishes it was him. Hiccup felt his cock pulse in want, but he waited for her signal and just palmed himself a little through his shorts. He heard the faint shuffle behind him, hyperaware of things he'd previously never noticed until Astrid pointed it out.

Teasing him, Astrid trailed her fingers down her stomach, delving beneath the fabric of her underwear and while he couldn't see, Hiccup could easily imagine what she was doing as Astrid arched, pushing her hips into her hand and mewling in pleasure.

"Touch yourself babe."

Hiccup didn't need asking twice, pushing his waistband down to free his erection, groaning at the relief of finally getting some stimulation on his cock. Astrid urged him to move back a little, the wheels of his chair scraping almost enough to cover the footstep behind him, backing up in concern but Hiccup was just giving Astrid more of the view she apparently wanted.

"B-better?"

"Uh-huh. Gods Hiccup, you look so hot."

Squeezing his shaft, Hiccup used his thumb to rub the head a little, hips flexing up into his fist. Astrid pushed down her underwear, exposing where her busy fingers worked her clit and Hiccup thanked the gods for high quality video cameras. They exchanged needy, wanting words as they went, Hiccup wondering for a second now and then if Astrid was too distracted to-

"Fuck, I wish I was riding you right now... want to do it for me Valka?"

Hiccup heard the gasp of shock, the silence that followed as his mother halted, obviously debating running.

Astrid had noticed Valka watching them whenever they had webcam-sex when they first upgraded their cameras, but she hadn't told Hiccup for a while. When he asked why, Astrid admitted she'd gotten kind of turned on by the being watched. She'd been drunk when she admitted that, and even drunker when confessing what else she wanted. Hiccup couldn't honestly say the thought had never occurred to him, though he'd fought it away and never let it take root.

For a minute, nobody spoke.

"Mom?"

Hiccup probably ought to have let go of his cock before he turned to his mother, but he was too focused on whether or not she was going to opt for escape. Valka looked very surprised to have been caught out, half-shadowed between the dark hallway and his lit bedroom.

"Well, don't just sit there Hiccup! Invite her in."

He spared a second to throw his girlfriend an exasperated look - why did he have to do it? - but when he turned back, Hiccup realised his mother had taken a step forward, and he nodded in encouragement for her to come closer.

"I..."

She tried to speak, only to trail off. Hiccup didn't miss her eyes sliding down to where he was still holding his cock, the thick reddened head visible above his fingers.

"I'm too horny for this to be slow and awkward. Valka, if you want in, we want you in. We noticed you watching a while ago."

Hiccup almost rolled his eyes. That was so very... Astrid.

His eyes met his mothers. She was so very unsure, he could see. Hiccup could only nod, reaching his unoccupied hand toward her. When she met him partway, Hiccup followed Astrid's direct approach and guided it to his lap, feeling tentative fingers brush his erection. The flush on her cheeks deepened, but she didn't pull away. When Hiccup looked at his screen he could see Astrid leaning closer, one hand still busy between her legs and the other squeezing at her chest. Hiccup's cock twitched against his mothers hand.

Her knees hit the ground without preamble, Hiccup making a noise somewhere between shock and pleasure as he felt a hot mouth on his cock, something in him initially going this is your mother! as she moved, but the combination of Astrid's encouraging sounds and the feel of a tongue sliding down his shaft soon overrode that, nothing but his own hand or an occasional toy for weeks meaning the feelings were more intense than they had any right to be.

Sea-green eyes peered up at him, oddly curious and innocent despite the way her lips were stretched around his cock. A skilled tongue stroked at the underside, soft moan almost tickling him and Hiccup couldn't help but moan in response. It was surreal, in a is this happening way, but it felt good and he could hear Astrid moaning, the slick, wet sound of her fingers and his mothers mouth filling the air to drown out his ragged panting.

His hands clutched at the arms of his chair for some kind of stability, screen showing that Astrid was clearly staring at where Valka's head bobbed in her sons lap, her own lips parted and eyes wide.

"Can she take you all the way babe? I know he's big Valka, but I can manage."

"Astr-ah!"

Hiccup had meant to challenge Astrid's obscene words, but his voice caught on a cry as he felt himself gripped by the vice of his mothers throat, only released when she gagged slightly and had to pull off. Her chest heaved, gasping for air as her hand curled around his shaft, twisting her wrist on the upstroke as Hiccup's hips flexed up. Not deterred, Valka surged forward and took him down again, wet warmth becoming tight squeeze around his throbbing cock, head falling back with a groan.

"S-slow down, fuck!"

The whole thing was getting under Hiccup's skin more than he expected, threatening to send him spiralling to a premature end. Astrid didn't appreciate that any previous time he'd gone off too soon and Hiccup didn't think the fact he was being blown by his mother was going to make any difference.

Astrid moaned, dragging both Valka and Hiccup's eyes to her to see she'd reached for the toy box, was teasing herself with a dildo while still watching them and Hiccup almost came on the spot. Gods, she was a seductress, able to push him even from thousands of miles away. Valka kept pumping her hand, keeping Hiccup on edge, both sharing short, heavy breaths as the obvious question hung in the air.

"Do it."

If they couldn't say it, Astrid damn well would apparently.

There was some fumbling, hands shaking with arousal and hesitation at first. Hiccup managed to lock his chair so it wouldn't start rolling away, a hungry sound tearing itself from his throat when Hiccup felt how wet the cotton of her briefs were when his mother guided his hands up under her skirt. Tugging the material down, she turned away and lowered herself backwards, making a weak little noise that sounded like "please" as Hiccup guided her backwards.

He and Astrid were looking at each other when Valka lowered herself, Hiccup slipping into soft, wet and welcoming in sync with Astrid pushing the dildo into herself. Hands came back, bracing on the chair arms as Hiccup gripped a slim waist between trembling fingers, only truly realising as they came flush that he was inside his own mother. He wondered if it was wrong that that thought made him twitch, hips flexing upward.

It wasn't the easiest position for leverage, but a few clumsy attempts made way to a servicable rhythm, his pushing up meeting her little bounces. Her hips rolled, riding him steadily and hidden from view by her skirt. Somehow it fuelled the heat twisting in his belly, the mix of secret and blatant as her ass landed against his stomach, as wetness slid down his shaft and those filthy sounds both women made melded in the air.

Astrid was moving the toy inside her in time with their thrusts, her free hand up at her chest, pinching at her own nipple. Hiccup copied her, reaching blindly to grope his mothers chest and her hand closed over his, making him squeeze her tighter and she tightened around him in response. Grunting, Hiccup pushed harder, hearing Astrid moan in encouragement only to complain she couldn't see. Hiccup groaned in complaint as his mother rose too high, his cock sliding free but fell silent as she reached for her skirt fastening, letting the material pool at her feet.

He hissed as she sank back down, taking him in one swift drop that drew sharp moans from them both. Now he could see too, the soft curve of her backside coming flush to his stomach each time only to rise, exposing the shine on his shaft of her arousal soaking him. Everyone began to fall apart at once, the sights and sounds and sheer madness of the situation the three were in taking their toll. Hiccup felt fingers brush the base of his shaft, realised Valka was touching herself and soon felt the answering shudders inside her, gripping at his cock in a sublime way that made him buck.

"Close babe?"

"Uh, fuck yes!"

Hiccup was barely holding back, not helped by the feel of silken sin wrapping tighter and tighter around him.

"H-harder Hiccup!"

He'd never heard his mother so strained and breathy, erotic beyond belief and he was powerless to do more than comply, pulling her down harder as he fucked up into snug heat. Astrid began whimpering, those sweet little noises Hiccup knew preceded her climax, spurring him on even more until he felt Valka seize, seating herself fully on his cock before she shook and shouted, arching back and trembling legs and white-knuckled grip as the rush took her. Astrid's breathy utterance of "I'm coming..." was all Hiccup could take, hands tightening on his mothers hips as he shuddered, cock swelling and spurting into the willing body that still enveloped him.

"Ohgodsohgodsohgods..."

He slumped to the chair limply, panting the only sound any of the three made for what felt like hours. Hiccup's dazed brain didn't quite kick in, but instinctive protest left his lips as Valka stood quite suddenly, jostling him. She turned toward him, covering her open mouth with one hand and trying to tug down her shirt with the other to cover her exposed lower half. Leaning down to grab her skirt, she fled.

Still stunned, Hiccup stared after her, mingled fluids drying on his lap and the fabric of what he realised was his mothers discarded underwear brushing against his foot. Turning to his still-nude girlfriend, Hiccup could only stare dumbly for a minute as his brain tried to process what had just happened.

"What are you sitting there for you muttonhead? Go after her!"

Hiccup snapped upright, realising Astrid was right. He had no idea what he was going to say, but he leapt from the seat, righting his clothes a little and hastening to locate his mother. He found her in the bathroom... well, he found the bathroom door locked, but he could hear running water and the creak of moving human. Rapping his knuckles against the door, Hiccup called out to her.

"Mom?"

-HTTYD-

Well... that happened!

There's a part two I have notes down for... I don't think it'll be a surprise what's in it! But idk when I'll get around to writing it.