Oh hey, I wrote something for this story at last. So it probably sucks.

-HTTYD-

Astrid grinned to herself as she showered, mapping a few faint marks on her thigh from where Hiccup's hand had tightened so fiercely in the heat of the moment. She ached, but that was a small price to pay after spending a long, messy night with her brothers.

She didn't need to bring her own bathroom stuff, really - the sandalwood was a little distinctive, sure, but Astrid had brought a bottle and put it in her bathroom so Heather would just think she liked the smell, and not many other people routinely got close enough to smell what she washed in. And between Eret and Hiccup both loving their hair, their shampoo and conditoner were more than up to caring for Astrid's hair. They even owned a hairdryer.

So far, they'd been getting away with it a while, and getting better at it. She no longer had a mild panic whenever anyone asked where she was going, though Astrid was obviously still careful, mindful not to get overconfident about it. They still couldn't drop sibling comments in to conversation with others, Astrid still had to dodge questions if she wasn't obviously out for a run or a jaunt to the nearby shops.

And then there were the few times one of the twins had stolen into her room at night, leaving Astrid with memories of Hiccup pressing her into the wall, Eret beneath her on her bed, quick and hot and dirty as she tried not to make too much sound lest someone hear through the paper thin walls. Then they'd be gone, leaving through the darkened halls as Astrid melted into her sheets like goo. They both had far too potent an effect on her, and she was hooked.

Astrid had something of an audience when she dried her hair, both Hiccup and Eret shamelessly watching her - she didn't bother dressing until the blonde mess on her head was dry, else it dripped down her top.

"Don't get ideas."

"Who, us?"

"Too late."

She rolled her eyes, turned her back and dried her hair in relative peace. Relative in that she could still hear Eret and Hiccup discussing how much they each liked her ass. When she turned back, both were very unsubtly hiding her clothes.

"If I have to take your clothes, people will know where I was, now give them back."

"Spoilsport."

Wriggling into her clothes, Astrid grabbed her phone off of Hiccup's charger and headed for the door. She knew they'd follow, and was proved right as Hiccup grabbed her from behind, pulling her back against his chest to murmur in her ear.

"You weren't going to leave without saying goodbye now were you?"

Eret moved too, their perfectly synchronous movements able to pin Astrid between them and honestly, she wasn't complaining. By the time they'd taken turns kissing her goodbye, Astrid was weak in the knees and wanted to drag them back to bed. Or the sofa. The sofa would work too.

"Guys, I have a lecture to go to!"

"Then go."

"We're not stopping you."

She'd gotten up early especially to be less likely to be spotted jogging across campus and still have time for that desperately needed shower, but being late sounded increasingly appealing with them both having hands on her, her lips tingling.

As she was getting ready to head over a couple of days later - because none of them had the strength for a sensible amount of encounters, like once a week or maybe never fucking her brothers in the first place... Astrid shivered remembering Hiccup's fierce grip, the bruising touch and hard thrusts. She wholly intended on getting a good, proper fuck tonight. Or two. Or four... damn, she needed to get over there.

It took a little convincing - that damned protective streak both had getting in the way at first - but Astrid was nothing if not persistent. Eret didn't take much convincing to join her on the sofa, bare chest warm under her hands as she explored him, his mouth hungry against her own and she let herself get a little sidetracked by it for a while, fingers toying idly with Eret's loose hair. Hiccup had their mothers thick reddish-brown mop, while Eret had their fathers fine dark hair. Astrid loved burying her hands in the strands of both mens hair equally.

Eret peeled off her shorts, mouth sliding over her inked hip; both brothers liked her tattoo, though Astrid suspected they liked the excuse of making their way in that direction anyway. She twisted her hands in his hair, hauling Eret back up to her mouth and sliding her mouth along his jaw to whisper in his ear.

"I want it rough."

Astrid certainly knew Eret was capable of hard, powerful thrusts, of teasing her to madness and gripping her tight - and she'd seen him fuck Hiccup (oh Hel yes…) pretty damn hard too, but when she asked for it rough, he actually frowned.

"I don't wanna hurt you."

"Then don't. But you can be rough without hurting me" Astrid remembered something they'd said before, that they'd spoken in secret moments of how they'd have her if they could "are you telling me you never thought about pushing me down and fucking me, watching me bite the pillow to try not to scream?"

The sound he made was utterly obscene, and Astrid wanted to hear it again. It seemed to hit the mark, Eret looking to her with questioning eyes, seeking her consent first. Astrid nodded, mewling happily when Eret turned her on her front, underwear joining her shorts on the floor and his thick fingers probing her. He groaned when he found her wet, the sound of fabric and his breathy panting sounds enough for Astrid to know he was pulling down his own shorts, hot cock brushing her inner thigh as her legs parted willingly.

"Are you sure?"

"Fuck yes!"

Eret groaned as he pressed into her, thick and heavy as he filled her inch by inch and gods he felt so big from that angle Astrid almost wept. His broad frame settled hot and firm against her back, one hand coming up to twist her head so he could kiss her sloppily. Astrid had no leverage but to wriggle needily, and Eret only hesitated for a beat or two before he pinned her with a hand between her shoulder blades.

"Stay. You asked for it like this."

She did, oh gods yes she did. Eret rolled his hips in a few steady, testing thrusts first, finding the angle that made her shudder and whimper beneath him. His hand was as rough and hot as his pace when he pushed her down and fucked her properly, grunting obscenely against her ear. Astrid thrilled in it, the feral energy she knew Eret had but felt he held back on, aware beneath all the sensations flooding her body that Eret would never truly hurt her.

She was safe to let him rut against her hard and quick, to squirm and writhe under him pleading for more, harder, deeper… and Eret delivered, beautifully. Astrid dug her nails into the sofa, pushing back as best she could and was rewarded by Eret cursing colourfully.

He got what he wanted, Astrid biting down hard on the nearest cushion to muffle her screams rather than alarm the neighbours - though undoubtedly, they heard plenty of noise. Her body quaked, Eret's body heat at her back the only anchor she had as her mind blanked completely, reality a spinning daze that didn't really seem to touch her for several minutes.

"Are you alright Astrid?"

Eret brushed her hair from her cheek, leant down to press a kiss there and Astrid hummed happily.

"I am great. That was awesome. See. Rough can be good too."

The sound of keys against the door had both looking up in concern; from the angle she was pinned beneath Eret, any guest Hiccup might have brought back with him would see her tattoo, not to mention her and Eret clearly freshly post-coital.

Thankfully, Hiccup was quite alone.

"Did I miss the show?"

"A little."

"Damnit."

Astrid sighed lightly, stretching once Eret moved from directly over her back.

"Get me something to clean up with? Unless Hiccup wants to jump in right now and you can tell him what he missed."

"You sure? That wasn't gentle."

"And? You think I can't take it?"

Eret rolled his eyes, but he was grinning.

"Fair point. Have fun H."

Hiccup took no time at all to replace Eret behind her, but he reached down and pulled her up by her hips until she was on all fours, surprising Astrid with a filthy thrill as he lowered his head and dragged his tongue up slowly, undoubtedly tasting Eret and her at once.

"Holy Hel H, that probably shouldn't be as hot as it is."

Chuckling low in his throat, Hiccup ceased for a minute to answer Eret.

"What can I say? My two favourite tastes together."

Astrid shuddered as he continued, talented tongue simultaneously seeking more of Eret's come and driving Astrid mad, shamelessly pushing back against him. Hiccup groaned, working harder until Astrid was shaking, keening, pleading. Hiccup hadn't even undressed, unbuckling his belt and unzipping one handed while the other slipped under her to play with her clit before he was brushing against her, hot and thick and tempting.

"W-what are you waiting for?"

She was almost breathless with sheer need, but still he held out on her.

"Hey" he repeated Eret's earlier motion, brushing hair off her cheek until Astrid twisted her head to look at him "I just wanted to check if you need me to be gentle. Eret said he wasn't, and I don't want to hurt you."

His concern was lovely and everything, but Astrid was increasingly tempted to just turn around and mount him herself if he wasn't going to get a move on.

"Oh gods, just fuck me now!"

Astrid was too hot and needy to go slow, a whimpering mess before Hiccup even got inside her. She trembled with that knowledge that Eret's come was still there, that Hiccup would be sticky with them both as soon as he bottomed out in his wanton little sister. Clutching at the fabric beneath her, Astrid pressed her face into the cushions but Hiccup gripped her hair, tugged until she lifted her head.

"I wanna hear you."

Well, Hiccup got his wish. Astrid couldn't stay quiet as he fucked her, moans stuttering and breaking into the next as Hiccup's thrusts picked up speed, forced Astrid to brace her arms against the sofa so the push didn't have her hitting her head on the arm of the sofa. She could feel his jeans each time his hips met her ass, having clearly just undressed as much as necessary to get into the demanding blonde. The rare times she managed to open her eyes, to even see straight, Eret was knelt nearby, watching them both with rapturous eyes and the added rush of his gaze on them almost broke Astrid completely.

"F-fuck! Hiccup!"

He grunted, fingers tightening on her hips and that fierce grip, those deep, reaching thrusts and Eret's eyes on her as she twisted and writhed... Astrid couldn't take it any longer. She buckled, body spasming violently as Hiccup pressed deep, his cock swelling and spilling into her with a low groan. Astrid mewled as she felt him come, feeling debauched and satiated at last as she slumped to the sofa with a happy sigh.

"You weren't kidding about wanting it rough, huh Astrid?"

"Nope. Gods, that was awesome. We must do this again sometime. But first I need to get my legs to work and Hiccup needs to feed me."

"Well you'll have to give me a couple of minut- ow!"

Astrid might have been doped on happy hormones, but she could still reach back and thump Hiccup in the leg for his wisecrack. Eventually getting her legs to respond to her brain, Astrid wobbled up off of the sofa, grimacing at the sticky mess that slid down her thigh before she ambled off to the bathroom to clean up, detouring into Hiccup's room to steal a t-shirt and boxers to wear around their flat.

"Movie, food and bed?"

"Sounds good."

They shared dinner, watching cheesy DVDs until they were too tired to stay up, although the term 'second wind' soon applied as they got to bed, Hiccup pressing Eret down on his front and taking full advantage of his knowledge that Astrid found watching them fuck obscenely hot. Then they were taking turns on her, eager hands and hungry mouths on her body... Astrid could barely even move when they were done, but thankfully she didn't have to, burrowing under the rumpled covers and feeling their body heat either side of her. It was generally accepted Astrid got middle when she stayed over, since Hiccup and Eret could cuddle each other whenever they wanted.

A last thrilling, terrifying thought drifted through Astrid's mind as she succumbed to sleep.

How was she ever supposed to give this up?

-HTTYD-

This chapter was meant to tell more but then my mood just sorta swan-dived so rather than fuck it up I finished it sooner? If that makes sense. Will attempt to make up for lame chapter next time.