# Surviving in X-103 (Part 2/3)

By: TheDragonBoy

## Content

“He- hehehe- Star, cut it out… Stop teasing and let me get inside you already.” Marco opened his eyes and blinked a few times, a hazy smile on his face. It took him a couple seconds to register what he was looking at once he came to, but once he did his reaction was instant.

“Ah! What the heck!?” He pulled his manly, Neverzone-sculpted body into a ball, shielding the large tent in his pants from the two gigantic girls that loomed over him.

Mariposa and Meteora, both somehow many times larger than they were before, sat bent over him, staring down inquisitively. The half-monster teen had her hand outstretched with one finger pointing out just above him, and if his fading dream and the erection between his legs were any indication, she had just been poking at his penis.

“That was not for either of you to see! And definitely not to touch!” Marco scolded impulsively.

Trying to regain his composure, he looked around, hoping to get his bearings. His hands and feet were bound with some kind of rope, and everything was so much bigger than it should be. Or… was he smaller? Did they shrink him!? He slowly began to remember what had happened: the girls had tricked them into lowering their guard, then surprise attacked. Star had been going toe to toe with Meteora when he got knocked out.

“Where’s Star?” he asked, not seeing her anywhere nearby.

“You mean the magic girl who said she was my cousin or something? Phft, you won’t be seeing her again,” Meteora replied.

“Yeah, I ate her to absorb her magic,” Mariposa explained. “She was pretty tasty too.” *URP* A surge of gas escaped the girl’s belly, along with something else: a tiny trinket that bounced and rolled, landing on the stony ground next to Marco. It was Star’s horned headband, worn and faded from the cruel environment of the teen’s stomach. Marco stared at it.

“And since she apparently tasted so good, I thought I’d just do the same thing with you,” Meteora said, “That is until we noticed that thing you’re hiding. What’s so special that you’d decide to stash it in your pants?”

“You think it’s some kind of magic artifact?” Mariposa suggested excitedly.

“It did feel kinda like a wand,” Meteora agreed.

“Well, give it up dude,” Mariposa ordered.

Marco had never felt such an odd mix of despair and embarrassment. Tearing his eyes away from Star’s headband, he looked up at his younger sister, gazing down at him authoritatively with the intent that he remove his pants.

“Erm, no. I can’t do that,” Marco replied awkwardly.

“Come on, just hand it over quietly and I’ll make things quick,” Meteora offered with an irritated scowl.

“No, you don’t understand, it’s not what you think,” he muttered, but it was clear that they had no idea what he was talking about. To them it just sounded like the bad bluff of a desperate man.

“Ugh, fine!” the half-monster groaned, reaching out for him. For a moment, he almost hoped that she just intended to eat him and get it over with, but instead she used her hand to hold him down, flattening him against the earth while she reached over with her other hand and grabbed at his already tattered pants. Not pretending to care, she tore them clean off.

“You have more clothes underneath your clothes?” she complained, indicating his makeshift underwear, still bulging with his erection, only just keeping it from view.

“Please stop, I’ll do anything!” Marco pleaded.

“Oooh, you hear that, Bork? This thing must be powerful!” Meteora teased.

“Well come on already Grobb, I want to see what it is!” Mariposa replied excitedly. The teen pulled down Marco’s drawers.

“…What… is that?” Mariposa asked. It definitely didn’t look like a wand. And it seemed to be… attached to him between his legs somehow. Marco tried to cover himself, but his bindings wouldn’t let him.

“Stop looking at it!” Marco yelled.

“If you want us to stop, just tell us what this thing is and why you were so interested in hiding it from us,” Meteora insisted. She didn’t understand what was making him so uncomfortable, but she was more than happy to exploit that feeling to make him cooperate.

“It’s- it’s just a guy thing, alright? Please, just put my pants back on. Mariposa shouldn’t be seeing this.”

“Stop calling me that! My name is Bork! And what’s wrong with me seeing it?”

“You’re my little sister!” Marco insisted.

“‘A guy thing’, huh?” Meteora interrupted, “Do only dudes have these? Do all dudes have these?” She poked at it a couple times, watching it bob.

“Quit it!” Marco yelled.

“Well, definitely weird, but it doesn’t seem magic to me. Oh well,” Meteora said. She reached out for him again, no doubt to follow through with her threat of eating him, but Mariposa interrupted her.

“Wait,” she said. Meteora looked at her questioningly.

“What is it?”

“I don’t know, something’s… I feel weird,” Mariposa explained, “When I look at it… I just get this strange feeling… down here.” She reached a hand down and placed it over her crotch.

“Oh, is it time for the ritual again?”

“No, it’s not that, it’s something else. It’s that other feeling.”

“Oh no,” Marco blurted out as he realized what was going on. They both turned to look at him at once.

“Wait, do you know something about this?” his sister asked him.

“Er- no- well, not exactly- you’ll find out when you’re older,” he muttered.

“*gasp* That’s what the old women of the mountain used to say!” Meteora exclaimed. “Every time we’d ask them anything about the thing between our legs, they’d always just say ‘You’ll find out when you’re older’.” She looked to Mariposa excitedly. “He knows the secret!”

“Alright weirdo, start talking and maybe we’ll even let you live,” Mariposa commanded enthusiastically. Marco gave a long sigh. He was not happy about this line of questioning, but he also wasn’t about to die over it.

“Look, it’s a girl thing alright; boys have these,” he made a motion with his pelvis, “and girls have what you have. You know this is really a conversation you should be having with your mother back home.”

There was a moment of silence as the girls looked at each other, their expressions seemed to show that they accepted his explanation but still felt that there was more he wasn’t saying. Then Mariposa seemed to realize something.

“‘Girls have’… like ‘Star’?” she asked. Meteora looked at her friend/sister questioningly.

“You remember what he said before he woke up?” Mariposa asked.

“What did I say?” Marco asked nervously.

“Yeah, something about ‘going inside her’ or something,” Meteora replied, “Wait, you don’t think…”

“I call for another sister meeting,” the human girl announced. The two quickly turned their backs for a moment and began whispering amongst themselves, but they were close enough that Marco could still make out a couple of words.

“*whisper**whisper**whisper*… are you sure, Bork?”

“*whisper**whisper*… it just feels…*whisper**whisper*…so much…*whisper*”

“Yeah but…*whisper**whisper*…inside?”

“*whisper**whisper*…size…*whisper*…I think…*whisper**whisper*…it’ll feel really…*whisper*”

“*sigh**whisper*…really weird, but okay.”

They turned back around to face Marco.

“Well, since you won’t tell us what we want to know, we’ve decided you’ll just have to show us instead,” Mariposa declared.

“Um… ‘show you’?” Marco asked.

“That’s right,” she replied, “You’re gonna go ‘inside’. Grab him Grobb, let’s head back to the cave.”

…

“Over here should be fine,” Meteora suggested, indicating a relatively cozy corner of their cave, flickering in the dim glow of firelight.

“Yeah, alright,” Mariposa agreed. She walked over and let her sleeveless jacket nonchalantly slide off her shoulders, guiding it to fall by the cave wall. Then she reached behind her back and skillfully undid a latch, releasing the top of her dress and letting the shoulder straps slide off and down her arms. The furry garment quickly fell to her ankles, and she stepped out of the discarded outfit, her young body fully exposed.

“Mariposa!!” Marco exclaimed, shutting his eyes tight and turning his head away.

“What? You got a problem with the way I look?” she asked.

“No! I’m just not supposed to see my little sister naked like this!” Marco complained.

“Why not?” Meteora asked, “I see Bork without her clothes all the time, and we’re actually sisters- unlike some people in the cave who are lying.”

“But you’re both girls!” he replied, still keeping his eyes closed.

“Boys, girls, what’s the big difference?” the half-monster teen asked rhetorically. Marco didn’t answer, but he heard a dull thud followed by a gentle puff of air as his sister sat down in front of him.

“Well, looking or not, you’re still going inside,” she said. She sounded excited, almost impatient. Was his adult body really that attractive?

The shock of her hand suddenly wrapping around his body forced Marco to open his eyes. She carried him a short distance and then held him for a moment, face up in her palm with her hand resting between her two outstretched legs. Mariposa looked down at him with an expression of eager curiosity, her bare chest looming overhead as she thought about how to proceed. Little scars dotted her upper body and her sides; old wounds gained from growing up in such a dangerous dimension.

“Okay, get ready, cause here we go!”

He had told himself he wasn’t going to look. He had promised himself that he wouldn’t look. But when he felt his boots suddenly press against something soft and felt the heat radiating through his soles, his gaze snapped to his feet. His eyes went wide and his face turned red. She had his feet pressed right up against her outer lips, caressed by a few stray pubes that sprawled down from the wild tuft of hair atop her crotch.

Mariposa reached down with her other hand and placed one finger against herself on either side of Marco’s legs. Pushing gently, she spread herself before him, the supple skin brushing against his boots as she parted it to reveal the rosy-red tunnel within.

Marco took a tense breath as he began to accept the fact that he had no way out of this now. She was going to do whatever she wanted with him. He looked up at her.

“Mariposa… just be careful with yourself,” he said. It was an oddly sincere request coming from someone she considered was lying to her about pretty much everything he said; it almost seemed like he really cared that she might hurt herself somehow. She wasn’t really sure how to respond to that, so she chose to ignore it.

She pressed him gently into her folds. The inexperienced teen gasped, her eyes widening and her mouth falling open. Marco felt her insides tighten around his ankles.

“What’s wrong!?” Meteora asked.

“You know how sometimes you touch down there and it feels kinda good?” She turned her head to look at her friend/sister, an exhilarated smile quickly growing across her face. “This is like a million times better!”

Marco shut his eyes again as he felt his sister push him in a bit further, letting out a long, shuttering breath as she felt the miniature man slide in up to his knees. Waves of pleasure pulsed around his legs as the sensitive flesh was stimulated in new ways for the first time. She relished in the experience, turning him back and forth a bit, brushing him across every modicum of her inner folds and getting his legs thoroughly slick before slipping him even further inside.

At this point, Marco was getting painfully aware of just how close his exposed member was getting to the entrance of his younger sister’s privates. Siblings or not, it’s kind of hard to hold back an erection when you’re soaking nearly waist-deep in a girl’s crotch. He could feel her heat bathing his throbbing manhood as the glistening slit approached.

“Mariposa, you’ve gotta stop before-” *SHOVE* “Oooh, there it goes,” Marco groaned, trying hard to control himself as his entire lower body was swallowed up by her loins. Meteora watched with a somewhat confused look as Marco began to grow an expression vaguely similar to Mariposa’s.

“You guys are acting weird,” she pointed out. “You sure you’re okay, Bork? You’re starting to sweat.”

“I’m better than okay. This feels great!” she moaned.

“If it feels so good, then why don’t you just push him in all the way?”

“That- *pant*- that would be too much.”

“Too much feeling great? How does that make any sense?”

“I don’t know,” she admitted. “Just… let me take my time.”

She pushed him in a little further, taking him up to his abs. Instinctually, she started gently sliding him around, in and out as fluids began to leak out around him onto the cave floor. Marco could feel her inner walls pulsing in time as his lower body- and more urgently his Little Marco- was dragged across her slick folds. Her hand grasped his shoulders with unnecessary force, but thankfully also cut off his view. Of course he could still hear her moaning with pleasure, grunting as she grinded herself against his chiseled midriff.

Eventually she had to change her grip, pressing his chest and back between her thumb and forefinger and letting her fingers slide in with him as she began to dunk him almost up to his neck, letting him reach depths she hardly knew existed.

Getting more accustomed to the sensation, she started to pick up speed. That is until she accidentally brushed against her clitoris for the first time.

“*GASP*!!”

Marco felt her body clench around him like- well, an eager vagina- pressing against him tightly and sending a small spray of her juices spurting out onto the hard ground. At the same time, she reflexively shoved her hand against her sensitive slit, as if trying to hold the explosion of pleasure inside. In doing so, she finally shoved poor Marco all the way past her lips, his feet pushing up against her furthest reaches.

There was a final, violent shudder, and then everything relaxed and went still. He felt Mariposa collapse onto her back, her heartbeat pounding around him, but gradually fading out as her body recovered. He waited in the blazing confines of her snatch, hoping that she would eventually remember he was in there and try to take him out.

That’s when he heard it. It was faint, almost inaudible over the girl’s heartbeat, but he heard it. A scream, defiant, but muffled and distant. It didn’t sound like Meteora and it definitely wasn’t Mariposa.

Suddenly a pair of fingers appeared from behind him, grabbing him at shoulder level and dragging him toward his sister’s opening. He heard her wince slightly as she pulled his head from her folds.

“Careful taking me out, you’re probably still pretty tender,” he cautioned.

“You’re telling me? What did I even just do!?” she asked.

“I’m pretty sure you just finished,” Marco breathed with a hint of relief. Deciding to follow his advice, Mariposa tugged at him gently, taking a sharp breath as she felt him brush against the freshly spent muscles inside her.

“What exactly was all that?” Meteora asked, a bit bewildered by what she had just watched.

“That, is something no amount of therapy or breakfast burrito buffets is ever going to make okay,” he said. He used his last bit of strength to awkwardly pull his underwear back up, despite his bindings, before letting himself go limp on the cave floor.

“Wait, what did you just say?” Mariposa asked, suddenly looking down at him with renewed interest.

“What, ‘therapy’?”

“No, the other thing!”

“‘Breakfast burritos’? It’s a food we have back on Earth,” he explained.

“But… but I’ve heard that before… when I was little…” Her face suddenly took on the most shockingly guilty expression anyone had ever seen. She put her hand over her mouth in disbelief.

“What is it now?” Meteora asked.

“Grobb, he is my brother…”

Originally Published: 30-Jun-2019