Warnings: Monster-cest

AN, Leave a review with any monster pairings you'd like to see :)

Atop A Saddened Cyclops

Penny sighs as she approaches the door to Cabin 3, dreading the long clean-up for inspections tomorrow after a gruelling day of training. Her tight-fitting yoga pants accentuating the swell of her perfect butt as she walks up to the door. Her cropped camp shirt that riding up high enough to show bottom-boob of her large perky tits. Penny is exhausted, her long black hair tied up in a messy bun and her sweat coats her body, causing her curvy figure to glisten in the moonlight.

Opening the door to Cabin 3 and dumping her weapons and armor in a heap on the ground it takes Penny a moment for her eyes to adjust before she is greeted by a more than welcome sight. Looking around Penny notices that everything in the cabin is immaculately cleaned, dusted from floor to ceiling and all of Penny's various Trophies polished to a bright shine.

More welcome than any of that is the nearly two-meter-tall cyclops that stands in the centre of the room putting the finishing touches on polishing the bronze Hippocampi that hand from the ceilings.

"Tyson!" Penny shouts running towards her half-brother and leaping up at him as he turns around and enveloping him in a massive hug. "Sister!" Tyson shouts in return picking her up in his giant arms and bringing her in for a massive hug. Giggling as Tyson swings her around in a circle Penny is overjoyed at the return of her clumsy half-brother. "Set me down, set me down!" Penny laughs as Tyson lets go and looks down at her with a goofy grin.

"When did you get here big guy?" Penny says as she lightly punches the side of his arm. "Oh well…" Tyson look happy expression turns more than a little sad. "Ella… broke up with me" Tyson says as his single big eye begins to brim with tears. "Awww Tyson" Penny says reaching up towards the Cyclops and pulling her giant half-brother into her busty chest as he begins to softly cry.

Sometime later Penny extracts herself from the sniffling Tyson "Hey bud, I'll be one second okay, I'm just going to go get cleaned up okay?" Nodding Tyson responds shakily "okay." As Penny goes into the bathroom and strips out of her sweaty clothes and quickly steps into the hot shower.

The feeling of the hot water invigorates and relaxes Penny as it usually does. Her mind begins to wonder, as she thinks about Tyson and how hard he seems to be taking the break up. After thinking for a while a thought and a memory comes into Penny's mind seemingly from nowhere, something she hadn't she wouldn't have ever considered since the change, since she woke up with no memories in a woman's body and was chased halfway across the country to Camp Jupiter.

Going through, his memories, Penny remembers one-time Tyson came out of the shower and forgot to put any clothes on, it had freaked out Percy but looking back at the memory know as Penny, well she couldn't help but get a little horny remembering the sight of Tyson's massive half erect monster-dick. Well, it wouldn't hurt to distract the big guy… it might even make him feel better, Penny thinks a sly smile coming over her face as she begins to rub herself in the shower.

Hurriedly finishing her shower and wrapping a towel around her hourglass figure, Penny slams open the door, her faced flushed red with arousal, and struts over to where Tyson sits sulking on his bed. As Tyson looks up at Penny, without a word she drops the towel to the ground, exposing her naked body to her monstrous half-brother.

"Wha-wh…what?" Tyson stammers as Penny stands naked before him. Her body slick with water, her perfect tits glistening in the light, her nipples rock hard and her shaven pussy wet in a very different way. "Come on Tyson, I'm going to cheer you up" Penny states eyeing the involuntarily stiffening tent in Tyson's shorts.

"B…b…but" "No buts," Penny orders as she moves forwards and straddles Tyson's waist. "I don't like seeing you like this big guy, so I'm gonna make you feel good okay?" Penny says, lightly grinding her wet crotch into Tyson's erection.

"Think you can handle me big boy?" Penny says, her eyes daring the Cyclops to react.

"Hmpf," Tyson grunts, a slow smile spreading across his face. Startling Penny, Tyson grabs her off his waist and spins her around throwing her down onto the bed. "Let's see how well sister can handle the things I learned from Ella" Tyson says, causing Penny to shudder involuntarily as the cyclops moves his face towards her crotch and Penny feels his hot breath on her pussy.

Penny giggles as Tyson forcibly spreads her legs, then moans softly as his long, warm tongue runs across her thick thighs. Relaxing onto her back, pleased with how things turned out, Penny lets Tyson gently pull her closer to press his tongue against her pussy.

"You taste nice," Tyson murmurs.

"OoooOoo yeah that's it" Penny moans, clutching the sheets as Tyson strokes her dripping slit from bottom to top and presses at her clit with the tip of his tongue. "Nnnhh! Oh..." Each rhythmic trail Tyson traces along Penny's shivering, flexing pussy excites her further as she struggles against the bed, trying not to grunt like an animal.

Clenching her bubble butt and moaning, Penny rolls her wide hips against Tyson's mouth and gazes up at the ceiling, crumpling the covers between her fingers as her first orgasm approaches. Shocked by the skill Tyson shows, try as she might, nothing stops Penny from panting in open-mouthed disbelief while she's brought to a colossal, back-arching climax by a bumbling, clumsy cyclops half-brother that has her clenching what feels like every single muscle in her body.

Nnn- nnngggh! GODS!" Penny screams, her thick thighs shaking violently as she rises off the bed. "You like?," Tyson mutters, pressing his tongue into Penny's clit. "Nnnh-" "OH-" Penny gasps, the breath escaping her lungs. She bucks and jerks in unbridled ecstasy, the sensation of blissful orgasm redoubling in on itself and leaving her shaking her hips in the air like a common whore.

"Nnnnmmmmmgh!" Penny falls back onto the bed with her head spinning and her eyes rolling, breath coming in short, shallow gulps of air that leave her feeling no less dizzy than she was before. Only the most primal part of her consciousness remains, the part that spurs her slowly wrap all four of your limbs around Tyson's giant muscular form, kissing him while admiring the thick musculature of the Cyclops' neck and back.

"Oh… Gods," now that she's pressing herself against Tyson, she can feel the hefty weight of a massive, swollen cock pushed against her belly.

"Everything okay Penny?" Tyson enquires, a look of concern on his face.

"Just hold me down and fuck me, Tyson." Penny pleads.

"Oh," Tyson grunts, shifting as he aligns a thick, manly finger with Penny's slit, "Like this?"

"Oh, Tyyyyyson," Penny moans loudly when he slips it inside her. "Nnnoohhh, fuck!" Penny hisses through her teeth, biting down on her bottom lip as she instinctively draws her thighs together in pleasure only to find them forced with superhuman strength.

Penny gives in to Tyson, panting in need with her legs spread for her half-brother. A monumental shiver runs through her entire body from bottom to top as Tyson strokes, her walls flexing and clenching around his thick digit while Penny's eyes roll back in her head, a guttural moan spilling from her lips.

As Penny's opens her mouth to moan Tyson inserts another finger between her lips. A hot breath escapes Penny's nose as she starts to suckle Tyson's finger while he pumps her with the other from below, a wild, erratic rhythm that has Penny almost dancing in the palm of his massive hand. Pleasure begins to well up within Penny as another orgasm approaches, filling her loins with a burning lust that sets her fucking herself on Tyson's finger while she sucks the other and lets out a low, feral moan of rapturous joy.

"Oh, god, Tyson..." Penny mumbles around his finger, her back arching while your vagina clamps down on the Cyclops' invading finger. "Please, by posiden, give me your cock Tyson." "Oh, by Daddy?" Tyson says, "Please!" Penny cries out, grabbing his back and digging her fingers into his tough, monster skin.

"Nnnggh, fuck! I need your fat cyclops cock!" Tyson looks down slightly confused at Penny as she desperately grinds herself against the meat of his giant cock through his shorts. "Please, gods, just fuck me Tyson!" Penny begs him, a flash of realisations goes across the Cyclops face, as Tyson grins down at Penny in her lust. "Oh, goooddd, I can't take it!"

"Poor Sister," Tyson chuckles, withdrawing his finger from Penny's pussy and leaving her painfully empty. "Was this you wanted?" Tyson takes Penny by the hips and turns her over, planting her on her knees and while she's busy gasping in surprise. "Yes," Penny hisses, watching Tyson align his thick, powerful monster-cock with her wet slit, trembling with anticipation. "Yes, yes, yes yes YES YES —" Penny's breath catches in her throat as Tyson thrusts inside her, as she is suddenly knocked forward and her mind goes blank while it tries to process what just happened.

A massive, colossal fucking cyclops-cock rams almost balls-deep in Penny's tiny little pussy. Her mouth gapes open, a silent scream of pleasure going unheard by her lover and brother. The pressure forces Penny to squirt all down his stiff, veiny shaft, coating his heavy, hanging balls in her juices as Penny throws her head back, celebrating her impalement upon this monstrous Cyclops tool.

"You stopped making sounds, you okay?" Tyson says, patting Penny's back. "U-uhhnn," Penny moans, head lolling forward. A happy smile settling on Penny's face as Tyson begins sliding her down his fat, throbbing dick one-handedly, like she's little more than a toy.

"Oouuhhh, fuuuck..." Penny moans as Tyson works her over with a maddeningly pleasurable rhythm, slowly pumping his iron-hard length in and out of her dripping cunt, caving her soft walls inwards with every thrust of his manhood in Penny's quivering lips and his heavy, monster-seed-filled balls swinging between her thighs.

Penny grunts and moans like an animal as Tyson fucks her, clutching the wrinkled bedsheets and bunching them up in her hands, her massive tits shaking with every soft impact against her big, bubble-butt. An erotic gasp escapes Penny's mouth accompanied by the gentle slaps of two enormous nuts against her stomach.

Penny's continually cumming all over Tyson's monster cock well before he lays a warm hand on the back of her head and coerces her downwards, pushing her face into the bed and angling himself to fuck her from above. Penny's screams of joy are muffled by bed, so enraptured, Penny doesn't even notice Tyson's loud grunting until she feels him begin to pulse deep within her spasming pussy, the giant head of his oversized cock spreading you wide as it begins to swell, spurting precum deep into Penny's womb.

Reaching down, Tyson grabs Penny's nipples and caresses them right as he forces himself all the way to the hilt, driving Penny to another explosive orgasm. "Peanut Butter!" Tyson shouts, grabbing Penny's hair and pulling her upwards, his engorged cuck beating against her silken walls.

The orgasms feel so incredibly good Penny can't even think, a scream of bliss working its way up from her lungs and finally spilling from her mouth as she's hoisted into the air and slides right down to the hilt of Tyson's enormous cock. "Ugh," Tyson grunts, grasping Penny around the waist.

"Oohhh gods I love you brother," Penny gasps, trembling in Tyson's grip as an orgasm wracks her body. "Oh, fuck, don't stop!" "All I'm doing is carrying you," Tyson huffs, shifting his hands to squeeze Penny's ass. "That's all I need," Penny moans, leaning forward to grab his bulging shoulders. "Just slide me up and down that b-big, thick Cyclops cock and I'm going to cum all over you, Tyson."

"You're the boss sister," Tyson says, Penny can feel pure pleasure as she's guided back down to the base of Tyson's overlarge cock. Just feeling of the tip of his fat dick in her tiny pussy is worth an orgasm, but nothing truly matches the impossible sensation of his thick, monster-dick sliding against her pussy lips.

Gods, just the knowledge that Tyson's balls-deep in her cunt sends tremors down Penny's spine, arching her back and thrusting her large breasts out towards him. Tyson spears her slick, clenching slit with his engorged monster-cock over and over, her juices dribbling and spurting down his iron-stiff length to drip from his swinging balls.

Tyson's grunts of effort grow louder, at first drowned out by Penny's lustful cries but now taking the fore as he bounces her up and down on the end of his big dick. Penny begins to feel hot, sticky precum, and a lot of it. "Oh, yes, Tyson baby, cum in me," Penny breathes between moans, tightening her grip on his shoulders as he strains, muscles standing out in his arms.

"Oh, gods! Tyson! Just let it all out inside!" Penny screams, losing control over her own body. "Peanut Butter!" Tyson shouts, and Penny lest out an appreciative moan when she feels his pumping dick begin to thicken and swell inside you, preparing for what's to come. Penny throws her head back in ecstasy as a titanic load splatters against her womb. Juices spurt down Tyson's throbbing shaft, forced outwards from the sudden pressure as Penny's vaginal canal is flooded by thick, pumping monster-sperm. The heat of it makes Penny's mind go white, her limp form supported only by the Cyclops' massive hand and the titanic tree-trunk of a cock impaling her cunt.

Penny's womb is splattered with wave after wave of Cyclops semen, coating her insides in white spunk before it spurts back out of her thoroughly used body. The two of siblings grind their sweaty bodies together, panting and grunting, Tyson carrying Penny down onto the bed to continue to fill her overstuffed pussy with cock and cum.

Leaning over, Tyson stretches Penny out, laying her prone and then sheathing himself so deep it feels like he's north of her belly button. All Penny can do is gasp and cum, her pussy wholly defeated by the enormous monster cock jammed inside her unloading two pulsating cum-tanks' worth of seed into her body. Tyson groans, drowning out Penny's whimpering moans of ecstatic release, sending rivulets of warm spunk jetting up into her cunt and back out onto the bed. Penny wraps her legs around Tyson's back and lets him plow her into the sheets, It feels like minutes before Tyson's done, it feels liters of minotaur cum have coursed through Penny's little pussy.

"Uunnhh... gods, yes," Penny moans, laying flat on the bed. "I don't think I'll be walking quite right for a little while." "Hah," Tyson grunts in amusement from above her. "Sorry, I think I went too hard?" Neither of them can go any further and they collapse side by side, gazing at the ceiling while they catch their breath.

"Mm, didn't know you had that in you little brother," Penny murmurs, running her hands up his forearm to stroke his bulging biceps. "Hey, while I'm already dirty... how about I clean you up." "What do you mean?" Tyson mutters, out of breath, as Penny climbs atop him, kneeling on his stomach and bending to her task.

Penny cheeks hollow wrapping her mouth around his massive cock as it fills with excess seed. "Uuuuhhnn... peanut butter... peanut butt…" By the time Penny's done, Tyson's already passed out and snoring on the bed. Smiling Penny snuggles in beside him, and blissfully falls asleep.