Manticum

Calypso ran her fingers over the petals of the sunflower next to where she was sitting on the grass. She always enjoyed relaxing at parks during her and Leo's downtime from traveling across the country on the back of the giant metal dragon Festus. Currently they were somewhere in Missouri. She thought she saw a sign for Columbia a few miles back when they flew in, but she couldn't be sure.

They had planned to go visit the Gateway Arch (to which Percy had laughed and told them to watch out for fat old ladies with evil chihuahuas) in St. Louis before heading to Camp Jupiter. However, Leo had dropped his toolbelt while flying, and so Calypso had him drop her off in the town, and while he went back over their path and looked for his belt, she would get them set up for the night here. She'd already checked into a motel for them and now was just wandering the small town while she waited for Leo to return. The sun had already begun setting, meaning he'd likely been gone for almost 2 hours already.

She knew he was capable of handling himself, but she was still glad he had Festus with him. Even though monsters typically didn't attack adult demigods (because if they'd survived this long they're usually pretty skilled in combat), she still worried about him. Monsters never really came near her, as she still had the faint smell of an immortal, and not to mention that of a titan (at least her father was good for something).

This wasn't always the case however, as unbeknownst to Calypso, a figure watched her from the underbrush of the nearby tree. The figure stalked around the girl on all fours, managing to conceal it's large body in the shadows, biding its time before striking. The modified scorpion tail it boasted expanded and contracted, as it prepared.

Calypso stood up and dusted off her dress, preparing to go grab from a local pizza place she saw a ways back. Two boys, probably a year or so younger than Leo were walking by, and one of them let out a very audible catcall whistle. The two laughed and scurried off when she glared their way.

She rolled her eyes as they turned the corner away from the park. It wasn't the first time guys had ogled her. Hell, she was dating Leo. He catcalled her at least once a week (although it wasn't necessarily received negatively when he did it). And here she was, alone in a park, wearing a tight but comfortable black long sleeve crop top that happened to emphasize her ample chest, with a loose flowing white skirt with a wide belt across her midsection. Tasteful, but bold. She wasn't surprised mortal men found her alluring. Leo certainly appreciated her new found taste in more modern fashion.

As she turned back towards the entrance of the park, the feeling of hundreds of needles pricking her all at once from behind overcame her, and knocked her onto all fours. Calypso turned to look behind her and saw dozens of spike-like objects, barely bigger than her pinky, all over her back, from her legs to her ass and she was sure all the way up to the back of her head.

She grit her teeth as they started to glow a faint pink, her body beginning to feel like it weighed tons, preventing her from screaming out for help. She watched as the needles seemed to be absorbed into her body, giving her a slight pink glow before fading. Her eyes rolled back as she felt a warm fuzzy sensation begin to overcome her mind. She was panting as her brain was rewritten, feeling like it was melting into goo. She felt surges of pleasure through her body at every point that made contact with the ground.

After a few moments the melting feeling in Calypso's brain dissipated, but a warm fog remained. She flexed her hand in the grass, clenching and unclenching it, letting out a soft coo as she felt a pleasurable buzz pass through her body as the grass contacted her skin.

As she continued her experiment with the grass, the large beast strode over towards its prey, a grin splitting it's humanoid face. The 'poison' the master had modified the tail with had been administered, and now the girl would be putty in his hands.

The scorpion/lion/human hybrid strode up to the prone brown haired beauty, who was still marveling at the grass, not noticing his presence. With her distracted, he reached his lion paws up under her skirt and grabbed her ass, gripping it roughly with his claws as he did so.

The demititan let out a gasp as a shock of arousal shot through her at the sensation of large hands grasping her butt. She giggled, and looked over her shoulder at her molester, seemingly unphased at seeing a manticore behind her.

"Mmm, I guess you like my ass huh. Well that feels reeeeeaaallly goood, so don't stop okaaayy" Calypso moaned to the beast, pushing her rear back into his paws, trying to increase the sensations of pleasure shooting through her. Somewhere a corner of her mind tried to scream this was wrong, but the comforting haze in her mind drowned it out. This all felt right.

The manticore just leered wider, knowing the girl was now his to do what he pleased with. And there were many, many things he had planned.

His grip on her ass tightened slightly, as his claws unsheathed, and he ripped straight through her spandex shorts, exposing her leaking pussy to the cool night air, eliciting another gasp from the wriggling girl before him.

He moved his body above the girl, his front paws placed on her shoulders and shoving her upper body into the solid ground beneath her. The extra contact bringing forth another moan from Calypso's rosy lips, as her pussy juices drenched the ground beneath her.

The manticore chuckled. He watched as his thick, black beastcock began to grow, and prodded at the entrance to the slut's nether regions. "Ooooo fuucccckk," Calypso threw her head back and moaned, her boobs and stomach still pressed into the ground. She'd never felt this aroused before. This all consuming heat that begged for that mighty beastcock to absolutely ruin her. All thoughts of resistance had been snuffed out.

She grinded her soaked little pussy back against the manticore, trying her best to entice him to just fuck her already. She heard the monster growl above her, and then bring his mouth next to her ear, causing her to shiver in pleasure as his breath tickled her ear. "Now now slut. I'm the one in control here," he whispered to her, pressing her down harder into the ground.

"P-please sir" she whimpered, desperate for the emptiness in her cunt to be filled.

"Please...what, little slut? What could it be" he dragged the tip of his cock up and down her entrance, eliciting another moan and more whimpers from the girl, "that you need so desperately, that you're going to beg me to give to you."

Calypso gulped, her arousal spiking the more he whispered into her ears and she imagined how amazing his cock would feel once it's inside her soaked cunt. How it'd feel smashing up against her womb, the ridges along it forcibly rubbing along the insides of her fuckhole. The thought of his virile seed emptying into her body, reducing her to nothing but a cum depository. She squeezed her thighs together at the tantalizing thoughts. She needed this, more than anything. "Please, please fuck me. Pound my horny little pussy so much I can't walk again. Fill me up till I can't hold any more of your cum. Breed me like a dog breeds its bitch. Just fuucckk meee" she begged, her voice full of desperate need that served to excite the manticore further.

"Now that's what I wanted to hear."

Without anymore delay the monstrous shaft began pushing its way into the demititan. For a moment, it feels like it's too big to fit inside, but then the pressure gives, and the manticore's pussy-breaking cock is splitting her inner walls. She can't hold back her screams of delight as her sopping cunt is absolutely brutalized. The monster rears back, tensing before ramming back into the moaning mess of a girl below him.

The manticore straightens up, so he's now almost using Calypso as a stool while he fucks her. She's pressed so far into the ground now that every thrust rubs her tits and nipples against the grass and dirt, causing more moans as her eyes cross. As the rough treatment continued, her top and bra were slowly shredded by the rocks and dirt in the ground, until she's only left tatters of a top and her skirt.

Each violent thrust of the monster's hips sends shockwaves across Calypso's body, as she's forcibly pounded into the ground and used like the cocksleeve she is to this domineering beast. Her mind completely broken, she's only able to let out lustful moans and thrust her hips back into the brutal cock destroying her.

Faster and faster the beast pounds away into her. She can feel his balls clenching every time he sheathes himself into her body, promising to soon fill her cunt with a massive load of cum. The thought causes her eyes to roll back as she cums once again.

The manticore pants through his exertions. His thrusts speed up at a blistering pace as he tries to cram every last inch he can into the daughter of Atlas, his climax approaching. He plans to ruin her.

"There we go slut," he growls, slamming once. "This is what you wanted you whore." He slams again. "Now, take it," he finishes, shoving his cock as far as he can up her ruined pussy, and unloads.

Shot after shot after shot of monster semen shoots into Calypso's pussy, as she can only scream in ecstasy. Yes, this was what she wanted. To be bred by this fantastic monster. To take all the nutslop he offered and have it crammed into her until she was bursting. Her eyes roll back so far only her whites can be seen. Her tongue lolls out of her mouth, a wide, loopy grin plastered on her face. She laid convulsing on the ground as orgasm after orgasm rolled through her petite frame. So overwhelmed by pleasure she didn't even remember having a boyfriend named Leo. All there was in her mind was this manticore and his perfect cock.

But the manticore wasn't done yet. He removed his cock from her tight fuckhole, causing a hush of semen to start flowing from her pussy onto the ground. Now, for the real fun. He mounted Calypso once again, and this time, aimed his cock towards her unused asshole.

When he prodded her, she only whimpered and clenched her asshole tighter. He thrust again and he couldn't penetrate her. He growled, he wouldn't fit if she didn't relax. Slowly, he lined up his monstrous shaft with her tight anus, and slowly tried to push inside.

The slow movement resulted in just enough for the head of his cock to enter, but she needed to relax more to fit his whole monstercock.

The manticore leaned his human head down towards the writhing slut beneath him, whispering in her ear. "That's a good girl. Just like that. Relaaaaxx, and just let it all go. This is what you're meant for, what you're made for." She whimpered, before letting out a long guttural moan as her body complied with his commands. She relaxed as his thick, juicy meat pole plunged past her virgin ring, and skewered her tight little asshole, just like it was meant to do.

The manticore slowly rutted in and out of her freshly opened asshole, adjusting her to the size of his cock. Calypso grit her teeth as the ribbed shaft rubbed painfully along her sensitive insides, bringing tears to her eyes. After a minute or so the manticore began rapidly speeding up so with every thrust Calypso let out a high pitched squeal of ecstasy. Every slap of Calypso's luscious ass against the manticore's pelvis added a slight tinge of red to her ass cheeks and sent blazing fires of passion through her brain.

Each slamming of his cock into her pliable asshole was accompanied by the smacking of the beast's steaming nutsack against her pussy. Her brain overloaded in pleasure, she could only moan and squeal as this dominating force remolded her asshole. The pain she'd felt at the beginning no longer bothered her, but rather added to her pleasure. It had been bestowed upon her by this magnificent beast, and her tears were only of joy to be receiving such pleasure. A lowly cocksleeve like her didn't deserve this state of ecstasy, and yet her beautiful and generous mate had seen it fit to fuck her beyond oblivion.

Her senses were utterly dominated. Every bead of sweat, whiff of cum, smacking of skin, combined to just overwrite everything around her. There was no park in Missouri. There were no gods or titans. There was no Leo, or Festus. There was just the manticore mounting her like the bitch she was and using her like the fucktoy she was meant to be.

Once again the manticore's thrusts increased in pressure and speed. "Yes, fuck your little slut. I'm just a whore for you to dump all your cum into. Fill my ass so I can't walk for days. Pleeeeaaase," Calypso squealed, her mind completely broken.

With one final thrust the manticore buried himself balls deep into the demititan's tight little asshole, and proceeded to blast her bowels with another huge load of cum. Calypso could only moan as she felt the thick, veiny cock pulsating in her ass as she finally received the load she'd been begging for.

However, her asshole couldn't contain as much as her pussy, and so the final blasts of the manticore's load streaked across her now cherry red ass, saliva covered back, and her utterly mangled hair.

The manticore looked down at his handiwork. Cum was leaking out of both the beautiful girl's asshole and cunt, barely covered by her now brownish-yellow skirt. Both holes noticeably wider after taking such a gigantic beast. Her ass was a nice vibrant shade of red from the brutal pounding it'd received. Across her back and in her hair was a mixture of cum and sweat. And to top it all off her face was pressed into a sloppy puddle of drool, her eyes rolled back, tongue lolled out, and a gigantic loopy smile on her pretty face. She looked like a brutally used whore.

The manticore leaned over the almost comatose girl and whispered one more time in her ear.

"You're not done yet slut. Your time will come, when the master decides."

When Calypso regained her senses enough to gather her torn up top and bra, a half hour later, the monster was gone. And she clenched her thighs as her pussy throbbed when she thought of his last words.

—

Eros grinned as he watched the beautiful daughter of Atlas stagger away from where she'd just been fucked out of her mind. His monsters were very effective, and his plans were shaping up quite wonderfully.

He turned back towards the ritual room, and grabbed his next item with which to create his depraved and lewd form of life.

He just hoped they could adjust to the cold of where they'd be going.

——

Hey sorry this took so long I got lazy at writing the ending. Anyway, the way I have everything laid out is this: 1. Everything is girl(s) x monster/creature basically. 2. Every girl is gonna have 2 chapters most likely. Originally I was gonna do Piper's 2nd chapter first before doing anyone else, but I was having some issues uh, writing her partner's scene, if that makes any sense. So yeah, that's the plan.

Also someone asked for Fem!percy. I didn't plan to include fem Percy, but I came up with an idea or two that I could work with. If more people want it than I'll write it.