Chapter 1: White as snow, but Dark as coal

In a islandous land known as berk, human Vikings and fearsome dragons had been at war for centuries, until one day Hiccup, a small and weak viking boy befriended a dragon called a Night Fury he named toothless and brought peace to the two groups. But now the Vikings will meet a new creature, one of great wonder and deadliness, and it came from the stars, this creature, was a Xenomorph.

One night Hiccup and his girlfriend Astrid and her deadly nadder were sitting on the edge of a rock formation looking at the stars. Three years have passed since the war with the berserkers, and their most dangerous enemy, Dagger, behind bars.

"Wow, the sky sure is nice tonight." Hiccup said, looking up at the stars. His dragon, toothless purred while placing his head on his lap.

"It is." Astrid smiled while her dragon Stormfly purred while nuzzling against her.

Then there was a flash across the starry sky as something started streaking downward from above. Toothless was the first to notice this runaway meteor. He chirped a bit before nudging Hiccup's rib cage.

"What is it bud?" the boy asked. He then looked up and saw the approaching comet. "Oh gods…"

Astrid jumped on him. "Get down!" Their dragons tackled them down as the comet passed them. The four looked up as the rock from space passed the trees of the forest and crashed with a loud bang.

"What was that?" Astrid asked as the two vikings got up.

"I don't know, but we should check it out." Hiccup replied.

The two climbed on their dragons and flew off where the comet crashed. Trees were scorched into nothing but ashes and the ground held a deep path where the rock slid across.

As they walked around the area they saw a huge meteorite sitting in a huge crater. A few seconds later, something started tearing it's way out, then two odd looking creatures came out. Both were black, six foot tall, had long spine shaped tails, completely humanoid bodies, their heads were a small bent oval shape and they had almond shaped grey eyes, and they had devil shaped horns, finally they had spines on their backs with large clawed hands. One seemed to be a male while one was clearly a female. The two creatures looked around their new terrain before they hissed.

"What in Asgard are they?" Astrid gasped.

"Not sure, they don't seem to be anything I've ever seen before." Hiccup replied. "Maybe a new species of dragons perhaps." He got up. "Stay here, i'm gonna get a closer look." He jumped down and skid across the dirt crater as he slowly approached the new creatures.

"Be careful…" Astrid whispered while Toothless stood ready in case they might attack.

Hiccup slowly approached the creatures. His metal leg accidentally knocking a rock down and made a decently loud crack sound, causing the two creatures to dart their attention to the one legged viking. Hiccup froze as he bit his lip. "Oh thor…" He whispered.

The female sniffed the air and smelled the musky scent Hiccup gave off, it seemed to please her, even turn her on. She licked her lips and purred.

Hiccup blinked before the female started approaching. "Uh...hi?" he asked with a sheepish smile. The female creature purred as she advanced to him. Hiccup backed up a bit while gently holding his hand out. "Easy...easy now…"

The female walked up to him and with her hand, grabbed his arm and pulled him into her ample chest, then she slowly licked his cheek with her long tongue, tasting his flesh. The boy shuddered as she continued to lick him, long and slow, as if she was enjoying it.

"What is it doing to him?" Astrid asked before she skid down to the scene. "Hey, what are you doing to him!"

The female looked up and hissed, eyes narrowing as she sunk the boy deeper into her chest.

"That's my boyfriend you're clutching!" The viking girl snapped, now getting a bit fed up as she grabbed the handle of her axe. "Release him!"

Then the male creature walked up behind her and pressed his nose to her back, shuddering as he took in her sweet scent and grabbed her from behind.

"H-Hey! Let me go!" Astrid yelled, struggling in the creatures tight grip.

It only purred and started to copy the female's actions, as if it was trying to arouse her like his counterpart was doing to Hiccup.

Hiccup was able to free his head from the females bust as he breathed. "Okay, this is not the normal way or dragons to interact with vikings."

"You think?" Astrid asked while moving her head back when the male's large and slimy tongue licked her cheek. "Ewwww!"

"Hey watch where you're-" Hiccup tried to yelled before the female smothered his lips with hers, shoving her tongue in his mouth and down his throat.

"Hiccup!" Astrid yelled. The male purred as his hands started scratching at her clothes, almost like he wanted her naked! "Hey! Stop!" She yelled when the male started yanking at her skirt.

The female purred as she started yanking on Hiccups pants as well. Having enough to the point they were forcing themselves on the couple, Hiccup ripped from the females tongue lip lock and coughed. "Toothless!"

The black dragon came bounding up towards them, using a plasma blast at the ground, growling. The creatures shrieked in alarm and dropped the two vikings and backed away as he and stormfly moved to their riders to protect them.

"Ha...thanks bud." The boy smiled while stroking Toothless's head, making him purr a bit, but remained glaring at the newcomers.

"They must be in some sort of heat." Astrid noted, adjusting her clothes.

"But why us? Can't they just mate with each other?" Hiccup mentioned.

"Their probably from the same brood." the blonde suggested. "It's pretty detrimental to breed with a close relative, genetically speaking."

The pair remained a good distance from them since they have allies that can attack long distances.

"So what do we do with them?" Hiccup asked while scratching his head.

"I dunno, catch them and bring them to berk? We could ask Gothie if she's seen things like them." Astrid said. Gothie was the village elder, if anyone would know what these things were, it's her.

Hiccup sighed. "Just hope my dad doesn't flip out on bringing something he never saw before back home." he whistled and waved to toothless. "Catch and release bud! Do your thing!"

Toothless blasted at the ground and made the two humanoids back up, until they were up against the meteor, then stormfly shot a wall of spines at them, trapping them, once they were trapped, Astrid and hiccup took their ball ropes and threw them at the two creatures. Once they were secure, they flew back to berk with the dragons carrying the meteor.

(Later…)

The elder eyes of Gothi examined the two humanoid creatures while they were trapped. Gobber was also there to translate for the couple while he too examined the two.

"So yer sayin these two things were tryin ta git very close to ya two?" The blacksmith asked.

"Yeah...something like that." the boy blushed.

The elder approached the two and started scribbling the ground.

"What's she saying?" Astrid asked Gobber.

The large viking looked at her scribbles. "She says these two creatures are not anything she has ever seen, but seem to be attracted to you two from your fence. Fence?"

Gothi hit him with her staff. "Ow! Scent! Sorry sorry." gobber said.

"Doesn't make it any less weird." Astrid growled, glaring at the two creatures.

Gothi scribbled again. "She says these two are acting on their natural lives and will not stop advancing till they mate with you two. It's apart of their Biscuits. They have Biscuits?" Gobber asked.

Gothi hit him again, this time harder. "Ow! Instincts. Instincts. You know, you're scribbling ain't as it used to be." The blacksmith said. The elder glared and prepared to hit him again. "But you're swings, strong as ever."

Gothi rolled her eyes and scribbled again. "She says go to stoick and see what he thinks, this is the best she can do for cow-now!" Gobber corrected himself, flinching.

The two vikings looked at each other before hiccup sighed. "I was afraid of this…"

(later again…)

"They want to do what!?" Stoick spoke loudly after the two vikings explained what happened when they encountered the two alien creatures with them inside of the house.

Hiccup flinched. "I know it sounds crazy dad, but it's the truth, and trust me i'm not exactly thrilled about it either."

"Neither am i." Astrid added, crossing her arms.

"Then we have an agreement." Hiccup's father nodded. "I want you and Astrid to take these…" He looked at the creatures trapped with a glare. "Things out of my village."

"Where do we take them?" Hiccup asked.

"Send them to an island far from here." Stoick answered. "The last thing I need are two things we don't know to advance on my son and my future daughter in law."

"That's going to be difficult." Astrid noted, looking at them, seeing that the restraints were struggling to hold. "Gods these things are strong."

Hiccup however wasn't too sure. "Dad, are you sure that's a good idea? We don't know anything about them, maybe they're friendly and we just don't realize it. I mean, i thought toothless was a crazy killing machine and look how good we turned out." he said while stroking his night fury.

Stoick sighed. "Hiccup, this is a totally different situation. These things are not dragons, and they tried to rape you and Astrid. We don't know what they're capable of or what they will do if they even advance on you two. We have to think of what is best for you and Astrid, for the good of our people on Berk."

Hiccup sighed. "Alright. Come on bud let's get these guys outta-here?" he turned and saw that the creatures were gone, and the ropes were melted like butter.

"How did they?" Astrid gasped in surprise.

Then the male dropped from the ceiling, a corrosive green liquid dripping from his maw.

"They can melt stuff with that green ooze." Stoick spoke in shock.

"Stay behind me Astrid." Hiccup ordered while Toothless stood ready while snarling as his mouth glowed purple.

The male stood upright and spat on the ground, then started to clear its throat. "No….fight…." it said in broken words.

The three vikings and dragon went wide eyed. "It talks!?" Astrid gasped.

It gestured to itself. "Xenomorph."

"Xenomorph…" Hiccup spoke, now knowing the name of the creature. It approached slowly before toothless was about to fire. "Toothless wait!"

The Xenomorph hissed before the female dropped in front of him. "No." she said in a silkier voice.

Stoick moved the viking children aside while glaring. "Why are you trying to advance on my son and future daughter in law?"

The woman tapped her head. "Instincts. Can't control."

Hiccup shook his head before holding Astrid by her waist. "I'm sorry, but I'm with Astrid."

The female shrugged. "Why...not...share?"

This caught the three completely by surprise. Sharing? As in...a harem?

"It not...uncommon...for Xenomorph...to have...multiple mates." the male said.

"At least we don't try to sexually advance on others with force." Astrid spoke with a glare at the male xeno.

"In hindsight...it was...not good idea." they both said.

The five remained silent for a time being before the female spoke weakly. "We...sorry...we want...to help...we...strong...swim...fast...high scenses...hunting...instincts…"

Hiccup looked at his father. "Dad?" then at his girlfriend. "Astrid? What do you think?"

Both vikings thought for a few minutes before they sighed until Astrid approach the two. "Okay, let's get something straight, I will comply to this, since I feel bad for you two that you're not familiar around here. I will allow this...harem nonsense," She turned to the female. "But if you try to hog hiccup, I will make you wish you never suggested this idea." She turned to the male. "If you try advancing on me like that again without my permission, I will gladly take away what makes you a male."

"And if you two try to harm my people on Berk or hurt my son, you both will pay the ultimate price." Stoick warned.

The two bowed slightly. "We...understand." they said.

Stoick sighed. "Well, glad we got that settled. It's late, you both get some rest." He said to the two.

"Mind if I stay for the night?" Astrid asked.

"Of course." he smiled with a nod. He gave the two a hug and started to leave but not before giving the Xenomorphs one final warning glare as he went to his room.

The two shuddered at that. "So...what...now?" they asked.

"I guess go with the flow." Hiccup spoke.

"But if you two plan to...mate with us, you two will have to wait, cause if any of us will be losing our virginities, I will lose mine to Hiccup." Astrid spoke.

The male huffed in disappointment but just crossed his arms. "Fine…"

"You two will wait outside the door until we are done." She spoke. "Come on Hiccup." She grabbed her boyfriends hand and took him to his room. When they were inside, she closed the door and sighed while placing a hand on her face. "I can't believe this…"

"Trust me i'm surprised my brain hasn't malfunctioned by now." Hiccup said.

"Still Hiccup...we have to…" Astrid started.

"I understand." he nodded while embracing her. "Believe me, i'm not fond to this idea either, but we have to, if anyone were to take them, bad things will happen...and better than to have them be with Snotlout or the twins."

"Yeah...especially them." Astrid nodded. The two chuckled a bit before they breathed. "I just hope we don't regret this Hiccup."

"Me too." Hiccup nodded before kissing her head gently.

"But i know i won't regret this." she said as she kissed him deeply. Hiccup blushed but he relaxed fell into Astrid's kiss. They embraced tightly as their mouths opened and their tongues danced. Their feet moved on their own before they collapsed on the bed.

Hiccup slowly moved his hands up her body, feeling every inch of her as much as he could. She felt so perfect, she was indeed the girl of his dreams.

"Mmmmm." Astrid moaned softly at his gentle touch, vikings normally would be rough when it came to sex for the first time, but Hiccup was so gentle, she loved his gentle nature.

"You're so beautiful." he whispered to her.

"And you're so handsome." She whispered back, her nerves melted in his touch, one of her legs wrapped around his waist. "I'm ready for you Hiccup. Make me yours."

The boy nodded as he started to undress her and himself. Astrid was not your typical viking woman, especially given that she was from clan Hofferson, her family was known for being curvy, but her? She was more on the slim side, but she did have good bits of curves here and there.

Hiccup, being the son of the chief of Berk, he was not like his father, no chest hair and not packing with muscle, but makes up for his amazing built body, relaying on both speed, maneuvers and slight strength.

Astrid unconsciously covered her C-cup chest, she had developed over the years, but she was still small by viking standards.

Hiccup gave a small smile to her shyness and lack of part size, but he gently stroked her cheek. "Don't be scared Astrid, I want to see your beauty completely. Your body is perfect to me."

Blushing she slowly uncovered her chest, then rose her hands to the bedpost to hold on. "Okay, go ahead, i'm ready."

Hiccup gave her a soft kiss on her lips while his gentle yet strong hands groped her small breasts, his fingers kneaded her jiggly bust while a few gently pinched her erect nipples.

The girl bit her lip, she had heard of foreplay but never experienced it, and it was driving her senses crazy. "Hiccup...please…"

The viking male chuckled softly as his erect dick that stood at a nice 9 inches rubbed her soaked pussy. "You ready?" he whispered.

She whimpered. "Please." before gripping the bedpost tightly.

Her boyfriend nodded as he slowly entered her pussy, both gasped at the new sensation roaring in their bodies, Hiccup's cock stretching her tight pussy out. The girl yelped and whimpered when she felt pain coursing through her as small dribbles of blood leaked her cunt.

"Shhhh, shhh, I'm here Astrid." The boy hushed, while embracing her while stroking her hair.

"Oh it's so big!" she silently groaned.

"Take your time, we'll continue when you're ready." He cooed, gently kissing her neck, massaging her breasts and rear to ease the pain.

After a few minutes she started to gasp and moan. "Go, i want more." she said, wrapping her legs around his waist.

"Alright." Hiccup smiled before starting to thrust. He was gentle as the soft sounds of their thighs slapping together with his dick massaging her inner walls.

"So good…" Astrid moaned, biting her lip as she held him close. "So this is what it's like to make love."

"It feels wonderful." Hiccup groaned, kneading her ass in his palms. "And I'm glad it is you that I make love to Astrid, you mean the whole archipelago to me."

"You really are sweet Hiccup." she smiled, kissing his nose before gasping again. "Oh! You just touched my womb! Yeah, right there!"

Hiccup loved the feeling Astrid gave him, his dick kissing the entrance of her womb with each of his thrusts, sensing she was now comfortable, he held her close as his thrusts increased in speed.

The girl tried to muffle her blissful cries as she held herself to him. "Yes yes yes! Make love to me!"

Outside of the room, the two Xenomorphs were waiting while listening to the moans of the vikings, the male pacing while growling impatiently, he was upset this boy took her virginity first and not him, and his hormones raging out of control to get in there and rip Hiccup away and take Astrid now.

"I can't wait anymore...I'm going in." He growled as he was about to bash the door down, before the female gripped him with her tail and yanked him back.

"You will wait." She hissed dangerously. "We...agreed to...their conditions...you want to...be banished...from this island..away from her?"

The male looked at her, then sighed angrily. "Fine." he simply sat down, then his sister went on all fours in front of him.

"You can use me to relieve yourself." she told him.

At this rate, the male didn't care if he can't impregnate her or that she's his sister, he needed relief, now. Quickly, he mounted her as his massive cock at 15 inches long sprouted and shoved down her tight pussy. "Nnnngh! You're tight!" He growled lustfully, gripping her luscious hips and bashed against her with loud slapping sounds.

"So big! Yes brother fuck your bitch of a sister!" she moaned.

"You turn me on." He purred, yanking her face to his before slamming his lips on hers in a deep kiss.

She kissed him back and moaned. "Oh how i wish you could impregnate me brother."

"As I wish to impregnate you sister." He purred, gripping her massive G-cup tits in his hands and kneaded them roughly.

"If we could our babies would be a perfect breed, don't you think?" she purred.

"Yes, and I can have my sons fuck my girl and you." He cooed, tongue grazing her face.

"And you could fuck our daughters with my man." she added. "Oh if only it were possible."

"Maybe our chosen mates might give us what we need if we mate them." The male grinned. "We could repopulate with them, and our harem will grow fast."

"Maybe i could combine my genes and become different, then you could impregnate me." she purred.

"Or maybe drink some of the girl's fluids and gain her Chromosomes and DNA, which would make you reproduce with me." The male purred.

"That sounds wonderful." she purred.

The male purred before grabbing her tightly, pounding her savagely with his massive cock. "Rrrrrrrrr! Yes! Take my cock you little slut! Take it!"

"Yeeeeeesssss!" she moaned as he came inside her, pulling out as cum dripped out of her cunt. "I love having cum injected in me…"

"As I love cumming in you." The male purred as they made out. They soon heard a cry of bliss by the two vikings in the room.

"I think they finished." she said.

"Indeed." The male nodded.

The two approached the door, the female giving a small knock. "Hello?"

"Are you finished?" the male asked.

"Yeah, come in." They heard Astrid.

As they walked in each of them saw the other's naked form. The male gazing at astrid as his hormones were acting up again.

Almost about to jump on her to fuck her, Astrid held a hand up to him. "Ah ah, what did we just discuss?"

"Fine." he growled.

The viking girl stood and breathed. "Okay, we will hold up the end of our bargain of the deal, but remember our agreement, got it?"

"Of course." The female nodded.

"Okay…" The male nodded slightly.

Hiccup stood as well. "You know, we should give you two names instead of referring you two as Xenomorphs…" He thought for a moment before pointing at the female. "Your name will be Ebony…"

"And your name will be Shadow." Astrid said, pointing at the male.

The two looked at each other. "Alright." they shrugged.

Knowing that they just want to mate with the two, Astrid breathed before sitting at the edge of the bed. "Alright, come here Shadow."

Shadow walked over to her and slowly reached for her and kissed her, tasting her and starting to extract some of her DNA, morphing into a more human likeness. Astrid shivered a bit, his kisses were a bit different to Hiccups, but held passion and love like hiccup does. Maybe perhaps, this won't be as bad as she first believed.

"Mmmmmm…" She gave a soft moan before her hand reached down and softly stroked Shadow's cock.

"I'm ready if you are." he told her.

The viking girl laid back, spreading her legs. "Gently first."

The male alien slowly pushed in as best he could, going as slowly as possible. He panted heavily to prevent ravaging her. "Mmm..you're...tight…" he groaned as his cock stretched her pussy out.

"You're...huge!" she moaned.

While the two were bonding, Hiccup watched from the side, he can't believe how huge Shadow was compared to him. 'How does he walk with that thing?' he thought.

"Are you ready for me?" Ebony asked.

Hiccup blinked as Ebony was crawling on his lap. "Oh, uh yeah. Yeah, i'm ready."

She slowly lowered herself down and sunk herself onto his cock purring as it was a nice fit. "Mmmmmm, perfect."

"Nnngh, wow, how are you this..silky inside?" The viking groaned, laying back on the bed.

"You." she purred as she morphed into her own human likeness, which took a little bit after hiccup, with brown hair and dark green eyes. Placing her hands behind her head, she started bouncing on his lap.

The boy moaned while gazing at her form. "Ebony…"

"I like the fact we can look human, we can go inconspicuously." she smiled.

The two vikings moaning under the Xenomorphs as they gazed to each other. "You know hiccup...this might not be so bad.." Astrid breathed.

"I...agree." He replied. His girlfriend smiled as they both shared another deep kiss.