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Underground Journey	By : DeviousInnocent Category: +S through Z > UnderTale Views: 26335 -:- Recommendations : 0 -:- Currently Reading : 0
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Chapter List
- 5
- 6
A/N: Sorry for long wait. I kinda finished college and it was busy. I'm back though. Anyway, hope you enjoy reading this.
Clair was honestly a pushover- she clearly was inexperienced, and awkward, and all it took was giving the pale monster some flirting, teasing, genuine honest compliments and a quick handjob- as well as a promise of a date. It was a little disturbing how utterly used to this Frisk was getting.

She hummed to herself as she made her way out of the snowy place into a pleasantly cool area- Waterfall. She had to hide in the grass from a scary armored figure, but once she had lost the mysterious stalker, Frisk took a moment to clean herself in the shallow water- stripping naked and scrubbing off the excess sticky semen that had been splattered on her chest and face and honestly her whole body. It felt nice to be clean, and she hummed, pulling herself out of the water, dripping, only to find a powerful looking monster girl playfully holding her clothes.

“Lookin for these?” She winked, in a rather familiar manner, not bothering to hide her enormous cock- the muscular monster approached, amazonian body showing off. She was massively tall, muscular, and decidedly equine in appearance- or was it more piscine? She had fins, and a fishlike tail. Mer-horse-monster-girl. “Well you can have them, but first, you need to do something for me.”

Frisk blushed, staring at the huge, horse-like cock, thick and long. She felt a bit frisky (pardon the pun) and decided to play the innocent victim. “Me? What could someone small and helpless like me do for you?”

“You can start by screaming for mercy~” The girl grinned, pouncing on Frisk. The horse-fish girl wasted no time, forcing her cock into Frisk’s pussy. She squealed, feeling the thick cock force itself in.

“A-ah~! Too big!” It wasn’t of course- Toriel’s had been a touch bigger, but it still was quite the impressive size. The monster girl seemed pleased that Frisk was playing along, and pulled back, before slamming her cock inside Frisk again.

“God, I love a tiny slut who can barely take it~!” The girl grinned, panting as she worked her cock in, feeling it throb in the human’s womb. Frisk shuddered at each thrust, rocking back and forth on the big cock, moaning.

“No~!” She moaned, trying not to giggle. The monster girl saw, but didn’t mind, simply giving Frisk a playful tug to show off her strength, before roughly slamming in again. Frisk squealed, gasping and panting as the cock twitched inside her. She quivered as the monster girl pulled back, again thrusting in deep. Frisk mewled and cried out as she was rutted- for how long, she had no idea. Eventually, the huge cock shuddered and unloaded inside the small girl. Frisk squealed and writhed as the thick load pumped rapidly inside her, ropes of cum flooding her. The horse girl whinnied a little, a cute noise from such a muscular powerful female, before heaving over, half collapsing on Frisk and puffing with exertion, spent.

Annoyed at the way she was trapped beneath the powerful girl, Frisk wriggled and squirmed herself free. She stood, legs shaking as semen dribbled down them, picking up her panties and tugging them on. Feeling a bit adventurous, she left her jeans where they were and grabbed her undershirt and sweater, tugging them on so she only had panties hiding her abused pussy.

She giggled and continued through Waterfall.

Frisk was surprised to find a small skirt tucked behind a waterfall. It was a bit dusty, but it fit her nicely. With a little giggle, she looked at how the tiny micro skirt barely hid anything- if she bent even slightly her sopping panties would be on full display. With a wicked smile, she continued through the caverns.

Frisk dove into the grass- The mysterious figure- Undyne, presumably, had been chasing her. Something about the eerie, silent way the armored monster was pursuing Frisk made her far more afraid than she had been before. She lay flat as she heard the heavy clanking and banging of armor echoing only a few feet to one side. Frisk held her breath.

A sudden squeal rang out and Frisk nearly jumped, twisting herself to squint. She could see Undyne holding a small monster by the rump, having lifted the girl up from the grass. The girl looked starstruck, but Undyne seemed nonplussed, setting the girl down and storming off.

The armless monster girl bounced a bit, landing ass-first on Frisk’s face. Frisk, for her part, managed to resist the urge to moan until Undyne was gone.

“Oh my god~!” She gushed. “Undyne just touched my butt~!” She shifted, realizing she was on Frisk’s face. “Oh sorry~!” She raised the sizable ass, and Frisk giggled,slightly deliriously.

“D-don’t be.” Frisk grinned, a bit lopsidedly. The monster kid wiggled and blushed at the look on Frisk’s face.

“Were you hoping Undyne would grab you too~? She’s soooo cool!” The girl bounced, her chest bobbing. Frisk tried to maintain eye contact and failed. “You sure were unlucky. Well don’t worry, I’m sure you’ll see her again!”

Before Frisk could get a last look at that lovely rear, the Monster girl darted off, tripping, then darting off again.

Perv. A soft voice hummed in Frisk’s head. Frisk jolted. Was that… Chara?

For a while,Waterfall was uneventful. Frisk had to admit, a break from the usual was nice, but the peaceful atmosphere was starting to turn creepy. There was writing etched into the walls.

Why did the humans attack?
Indeed, their assault was very sudden.

Frisk chewed the inside of her cheek thoughtfully. She had heard Chara’s voice earlier, but now she could lightly feel her presence too. It wasn’t obvious, just a soft weight on her shoulders, but it grew a bit when she read the history.

Human souls are unbelievably strong-
And give them the strength to best us with ease

But it has a weakness-
And that is, ironically, the strength of their soul.

When a human is brought to the greatest extremes of pleasure by a monster
Their soul can be taken over by that monster

A monster with a human Soul-
A horrible beast with unfathomable lusty power.

This is part of the power humans feared.
But it is only the beginning.

Below was a drawing, faded with time. It had… tentacles. And wings, perhaps? It was hard to tell. Frisk sighed. Seems the history lesson ended for the moment. There was no more writing.

Frisk heard singing. It was very, very quiet- barely audible, even. But it was pretty, and Frisk, feeling adventurous, decided to hunt down the source. It didn’t take long. A slender-looking monster, with green-blue skin and a long mop of hair hiding her face. She was singing very softly, not much more than a hum.

Frisk tentatively approached her, and the girl shrank back a bit. Frisk paused, then, after listening to the timid girl’s soft humming, hummed few notes of her own. It just barely matched, but it was close enough that the Shyren perked up a little, her face visible. She began to sing, voice lilting oddly. Frisk felt a rush of warmth run through her. Was this girl’s voice… turning her on?

Yes. Of course it was.

Frisk shuddered, legs quaking a bit as she looked at the girl- it seemed that her own humming was encouraging the monster-girl’s, and her song grew louder and more confident- a beautiful, soft melody. The Shyren’s little nervous grin grew an inch or two, and she began to draw Frisk close, her song wavering but not once giving in.

Frisk on the other hand was submitting already. Shyren had barely touched her, and Frisk was dripping. Frisk shyly reached up and touched Shyren’s chest, squeezing playfully. Shyren gave a low, musical moan- even her noises of pleasure were lovely to hear.

Shyren continued to make soft singing sounds, her own hands beginning to roam Frisk, sliding into her clothes, massaging her plump tits and leaning in to nibble and suck on Frisk’s neck. Frisk shuddered and moaned softly, Shyren’s talented fingers swiftly relieving the girl of her clothes. Frisk smiled as Shyren gently pushed her back, feeling the monster’s cock gently grinding against her.

Frisk shuddered and grinned. “Mm… Your voice is lovely.” She flirted. The compliment seemed to encourage the Shyren further, and she rolled her hips, thrusting her cock deep inside Frisk, another melodic moan filling the air. She was much gentler than most monsters, even as she buried herself balls-deep in Frisk’s pussy.

The two moaned in tandem- Frisk almost rolled her eyes when she realized they were in harmony with one another- She was too busy having a shuddery climax though, brought on by Shyren’s hypnotic voice. Frisk shuddered, cumming again in a matter of moments. It was wild, but it seemed every monster girl made Frisk cum in a different way- and every time it felt just as good. She’d briefly wondered if she’d get used to this, but it was clear that that wasn’t something to worry about.

With a few more deep, powerful thrusts, Shyren uttered a high, keening note, the long, drawn-out cry followed by a powerful spurt of cum. The hot seed was pumped steadily into Frisk, filling her to the brim.

The Shyren kissed her cheek, before slowly dragging her cock out of Frisk’s pussy, cum dribbling out.

The human panted, nuzzling the musical monster for a few more minutes before she was released from the soft embrace and allowed to go on her way. She blew a kiss towards Shyren as she left, giggling at the incredibly meek blush. She continued, further into the depths...

Frisk shivered a bit. Undyne had knocked her far below, into a garbage-strewn pit. There were a lot of empty sex toy boxes laying around, and not much else. She wandered, until finding what looked like a mannequin. Its features were somewhat damaged, but in a way it still looked kind of cute.

Until it started laughing maniacally and attacking Frisk clumsily. She was eager, but the mannequin the ghost was possessing had no cock or anything to use, so she was forced to resort to awkwardly humping at Frisk. Frisk was amused but now was getting a little bored. The mad-equin (Frisk could sense Chara’s exasperation at the pun) cursed softly.

“Fuck… This body… So stupid…” She slapped at Frisk’s ass, angrily. “I’ll be back one day! With a new body! Then I’ll break your mind!”

Frisk rolled her eyes. Sure.

On a more pleasant note, the cute ghost girl Napstie’s house was here! She was shy, and apologized a lot. Before long though, Frisk got her to possess her again, to repeat their first encounter.

The pair were merged together on the floor, laying on their back, and working the cock with both hands, moaning in tandem. They stroked the cock slowly at first, before rapidly gaining speed.

“Hhn, yes…” Napstie murmured. Suddenly, she forced Frisk’s head forward, gently helping her body bend flexibly, until her mouth was wrapped around the cock they were temporarily sharing. Frisk was amazed, and delighted. It seemed that both her time here and Napstie’s possession was making her more flexible. Frisk and Napstie moaned, their voices mingling as the cock throbbed in their mouth, Frisk pushing to go further. She couldn’t believe it, but soon she was deepthroating the entire cock, bent tightly close. She shuddered, eyes rolling back a little in pleasure.

Frisk shuddered, and she could feel Napstie do the same. Sharing a body like this was even weirder than sharing with Chara. Nasptie’s moans sent vibrations down the cock and into Frisk’s pussy, and Frisk’s moans returned the favor. It was a wild feeling, one that was temporary. Soon, Napstie’s cock began unloading down their throats, filling them with a warm, satisfied feeling. Frisk and Napstie popped free from one another, panting.

“After a good fuck…” Napstie breathed, shyly. “I-I like to, lay on the floor and feel like garbage… want to join me?”

Frisk hesitated, before shrugging.

“O-okay.” She mumbled, a little puzzled. Still, she lay next to Napstie who nuzzled her.

“Okay, just lie there as long as you want…”

Frisk lay still. She stared at the ceiling.

Her body felt like it was drifting into the sky. She felt as if every inch of her exposed skin was being caressed and fondled and touched so right…

Apparently, garbage felt awesome.
- 5
- 6
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Underground Journey