Cover of A Cum-nundrum

A Cum-nundrum

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Monster girls need the sperm from humans to survive. Joshua is a human who offers his sperm to various monster girls to help keep them fed. When he tries a new potion to increase his sperm production, but a side effect is his cum becomes addictive to monster girls. He is kind and wants to help the addicted monster girls, but quickly becomes overwhelmed by the demands for his sperm. His regular customers include a sperm vampire, a slime girl, a pair of Goblin twins, and a manticore

Chapter 1: Introduction

Joshua leaned back in his worn leather chair, the frosted glass of his office window casting a prismatic glow over the cluttered desk. The room was a chaotic symphony of beakers, vials, and scrolls, each item a testament to his peculiar brand of alchemy. The air was thick with the scent of incense, a faint underlying note of exotic spices, and the ever-present tang of his latest experiment—a potion intended to boost his libido.

He swirled the glass vial between his fingers, examining the shimmering liquid within.

He had been tinkering with the formula for weeks, and today, he had finally hit the jackpot. His sperm production was off the charts, and he could feel the difference—a constant, throbbing heat in his groin. He chuckled to himself, adjusting his pants to accommodate his growing arousal.

Suddenly, a sharp pain shot through his groin, and he doubled over in his chair. Panic surged through him as he looked down to see his balls had turned a slight shade of blue and swelled to the size of grapefruits. "What the fuck?" he gasped, his eyes wide with disbelief. The sudden shift in size caused a burning sensation, and he stumbled to his feet, knocking over a nearby beaker in the process. The shattered glass scattered across the floor, and he cursed under his breath, hopping around on one foot as he tried to avoid the sharp shards. He managed to hobble over to the sink, turning on the cold water and cupping his hands to splash his face. The shock of the cold water helped to ground him, and he took a deep breath, trying to calm his racing heart.

As he stood up, he noticed his phone buzzing on the edge of the sink. He grabbed it, wiping his damp hands on his shirt before checking for messages.

"Shit," he muttered, seeing a notification from one of his regular clients, a succubus named Lila. "Call me ASAP! I'm feeling... peckish," her message read. Joshua rolled his eyes, grimacing at the implication. He knew exactly what kind of 'peckish' she meant. Well, it was a chance to test out his new formula if nothing else . He quickly texted her back, trying to keep it casual. "Hey Lila, I'm just finishing up here. I'll swing by in a bit. Tell that beast of yours I said hi." He chuckled at his own joke, trying to ignore the discomfort in his groin.

He limped back to his desk, grabbing a nearby notebook to jot down some observations about his unexpected side effect. As he wrote, he couldn't shake the feeling of unease. His potion was supposed to increase his libido, not turn his balls into water balloons. He sighed, running a hand through his short brown hair. Maybe Lila would have some insight—she was, after all, a monster girl herself.

Joshua tucked the notebook into his back pocket, grabbed his keys, and headed for the door.

As he stepped out into the dimly lit alley behind his office, he was greeted by the familiar sight of a massive, shadowy figure leaning against the wall. "Lila," he acknowledged, nodding towards the towering form. "How's it going?"

Lila, a succubus with crimson skin, long black hair, and horns that curled around her ears, pushed off the wall and stretched languidly. "Not bad, Josh. Not bad at all. But I must say, you look a little...

uncomfortable," Lila purred, her eyes flicking down to the noticeable bulge in Joshua's pants. "Did something go awry in your little lab today?"

Joshua grimaced. "You could say that. I've been working on a new potion, and it seems to have had some... unexpected side effects." He shifted awkwardly, trying to hide his discomfort.

Lila laughed, a deep, throaty sound that sent shivers down Joshua's spine. "Well, don't worry, sweet cheeks. I might be able to help with that." She stepped closer, her eyes never leaving his. "Come on, let's get you sorted out.

I've got just the thing for that," Lila said, her voice dripping with innuendo. She took Joshua by the arm, leading him down the alley towards her lair, a converted warehouse that smelled of exotic flowers and incense.

As they walked, Joshua couldn't help but notice the way Lila's tail flicked out behind her, brushing against his leg occasionally. He swallowed hard, trying to ignore the heat building in his groin. "So, uh, what's your idea for fixing my... problem?" he asked, attempting to keep his voice light.

Lila's eyes gleamed with mischief.

"Oh, I think you know exactly what I have in mind," she said, her voice a low purr. She led Joshua into her warehouse lair, the interior bathed in a soft, warm glow from the hundreds of candles that lined the walls. The scent of jasmine and other exotic flowers hung heavy in the air, a stark contrast to the gritty alley outside.

Lila led Joshua to a plush, oversized chaise lounge in the center of the room, the stuffing worn but still inviting. She gestured for him to sit, and he complied, wincing at the sudden movement.

"So, what's the plan?" Joshua asked, trying to keep his voice steady despite the throbbing sensation in his groin.

Lila sat down beside him, her tail curling around his thigh. "First, let's take a look at the damage," she said, her voice as smooth as velvet. She reached out, her fingers brushing against the bulge in his pants.

Joshua's breath hitched as she unzipped his fly, the cool air hitting his heated skin. He looked down, watching as she carefully extracted his now bright blue, swollen balls. She cradled them gently in her palm, her eyes widening as she felt their size.

"Whoa, Josh, these are... impressive," Lila said, a hint of admiration in her voice. "I've never seen anything like it."

Joshua tried to laugh, but it came out more like a groan. "Yeah, well, they're also incredibly pent-up. I feel like I haven't cum in a month!" Joshua exclaimed, his voice a mix of discomfort and arousal. He squirmed on the chaise lounge, trying to find a position that wasn't agonizing.

Lila chuckled, her tail stroking his thigh in a soothing motion. "Well, first things first, let's get these babies relieved," she said, her voice dropping to a sultry purr. "But fair warning, once I start, I might not be able to stop."

Joshua gulped, his heart racing at the thought. "I... I think I can handle it," he stammered, his body already on edge.

Lila smirked, her tail slithering up his thigh, brushing against his balls. "Alright, but remember, you asked for it." She shifted on the chaise, turning her body slightly to give him a better view. With a flick of her tail, she exposed her tail orifice, a glistening, wet hole with red lips that mirrored her mouth, and inner folds that quivered enticingly, like a tight pussy.

Joshua's breath caught in his throat, his mouth going dry at the sight. "Holy shit, Lila," he murmured, his hands twitching with the urge to touch her. "That's... that's insane."

Lila chuckled, a low, throaty sound. "You like what you see, sweet cheeks?" she purred, wiggling her tail seductively. "Go on, touch it.

It won't bite," Lila cooed, her tail slithering up Joshua's chest until the glistening orifice hovered inches from his face. "Kiss it, Josh. Let me feel your tongue." At the same time, she leaned down, her warm, wet mouth enveloping his swollen balls, sending shockwaves of pleasure coursing through his body.

Joshua hesitated for a moment, his breath hitching in his chest as he stared at the tantalizing sight before him. Lila's tail hole was mere inches from his face, glistening and inviting, but he had never done anything like this before. He felt a rush of heat to his cheeks, a mix of embarrassment and arousal. "Lila, I... I'm not sure I know what to do," he admitted, his voice barely above a whisper.

He felt a strange mixture of excitement and apprehension coursing through his veins.

Lila's tail flicked gently against his cheek, the wetness leaving a trail of warm, sticky pre-cum. "Just go with it, sweet cheeks," she purred, her voice muffled slightly by his balls still in her mouth. "Lick it like you would a sweet treat, and trust me, it'll be a pleasure for both of us."

Joshua took a deep breath, steeling himself for the task at hand. He leaned forward, his tongue tentatively darting out to lick Lila's tail. The texture was soft and velvety, with a taste that was slightly sweet and musky at the same time. The heat radiating from her tail sent shivers down his spine, and he tentatively lapped at it again, his tongue swirling around the glistening hole.

Lila moaned around his balls, the vibrations sending jolts of pleasure straight to his groin. As Joshua's tongue delved deeper, exploring the tantalizing texture, Lila's mouth suddenly tightened around his swollen testicles, her lips sealing shut. Joshua gasped, the sudden sensation causing him to pull back slightly, his hips involuntarily thrusting forward. To his shock, his balls were sucked into Lila's mouth, disappearing entirely into the warm, wet depths. He let out a strangled cry, his eyes wide with disbelief. "Fuck, Lila! What are you doing?" he exclaimed, his hands gripping the edge of the chaise, knuckles white with tension. Lila released his balls for a moment, her mouth making a wet popping sound as they emerged, shimmering with saliva.

"Don't worry, sweet cheeks," she purred, her voice thick with lust. "My succubus saliva is a natural aphrodisiac. It's stimulating your balls even more, making them extra full and sensitive. You're going to feel things you've never felt before."

Joshua stared at his glistening, swollen testicles, his breath coming in ragged gasps. The sensation was unlike anything he had ever experienced—a mix of immense pressure and intense pleasure that made his entire body tingle. He could feel the blood rushing to his groin, his cock rock-hard and throbbing with need. He looked up at Lila, his eyes wide with a mix of awe and apprehension. "Fuck, Lila, that's... that's intense," he stammered, his body trembling with the effort of not cumming on the spot.

"I don't know if I can take much more of this."

Lila's eyes flashed with mischief, her tail flicking playfully against his thigh. "Oh, sweet cheeks, you're just getting started," she whispered, her voice a husky purr. "Look at you, so eager and ready. Your balls are so full, so sensitive, it's almost cruel not to give them the release they crave. Don't worry, though, I've got just the thing to help with that." She winked, her tail curling up and around, framing her glistening tail hole perfectly. "Are you ready for my tail to pump those balls dry, sweet cheeks? To feel my hot, wet tail milking every last drop of cum from you?"

Joshua's eyes widened at her words, his body responding instantly to the promise in her voice.

He felt a drop of pre-cum bead at the tip of his cock, his balls aching with the need for release.

Lila released his mouth, a string of saliva connecting their lips before snapping with a seductive pop. She brought her tail up to his cock head, the glistening tip brushing gently against him. Joshua let out a shuddering breath, his entire body tensing in anticipation. Lila's tail began to move, giving his cock head gentle, sucking kisses, her tail tip wrapping around him like a wet, warm mouth.

The sensation was unlike anything Joshua had ever felt. The mix of Lila's succubus saliva and the rhythmic suction of her tail sent electric shocks of pleasure coursing through his body. He could feel his balls tighten even more, the pressure building to almost unbearable levels.

Lila's tail continued its relentless assault on his cock, the suction so intense that it felt like his entire body was being pulled towards the source of pleasure. Joshua's cock twitched, ready to explode at any moment. He let out a low, guttural moan, his hips bucking instinctively as he tried to match the rhythm of Lila's tail.

"Fuck, Lila, I'm close," he gasped, his fingers digging into the fabric of the chaise. "So fucking close."

Lila chuckled, a low, purring sound that vibrated through her tail and sent waves of pleasure coursing through Joshua's body. "I know, sweet cheeks," she murmured, her tail picking up speed. "Let go. Give me everything you've got."

Joshua's body tensed, his muscles coiling like a spring ready to release.

With a final, desperate thrust, his cock pulsed, exploding with a force that left him breathless. Hot streams of cum erupted from him, filling Lila's tail entirely, threatening to spill out onto the chaise. Joshua's vision swam, his body convulsing with the intensity of his orgasm.

Lila moaned deeply, her tail milking every last drop from him, the sensation of his cum filling her tail sending shivers down her body. She could feel the heat of his release, the power of it resonating through her like a drug, igniting her own pleasure.

Joshua collapsed back onto the chaise, his body drenched in sweat, his chest heaving with ragged breaths. His cock twitched weakly, still nestled in the warm, wet embrace of Lila's tail, but his balls felt lighter, less full.

Lila's tail vibrated gently, a subtle pulse that sent a wave of aftershocks through Joshua's body, milking him dry with a soft, suckling rhythm. He let out a soft moan, his body relaxing into the chaise, the tension that had built up inside him finally easing.

"Fuck, Lila, that was... intense," he murmured, his voice hoarse from the exertion and pleasure. He looked down at his cock, no longer the angry, purple shade of arousal, but soft and spent. A satisfied smile spread across his face as he turned his gaze back to Lila. "You weren't kidding when you said you could help with my... problem."

Lila's tail slowly withdrew from his cock, leaving it glistening and coated with a mixture of her saliva and his cum.

She let out a long, low groan, her body arching as waves of pleasure rippled through her. The sensation of Joshua's cum flooding her system was intoxicating, sending shivers up her tail and deep into her pussy. Her fingers dug into the chaise, her back bowing as she rode out the wave of pleasure that threatened to consume her.

Joshua watched in awe as Lila's body convulsed with her own orgasm, her tail writhing and twitching as if it had a mind of its own. He could see the raw power of her pleasure, the sheer intensity of it, and he felt a primal thrill at having been the one to bring her to this state. "Lila," he breathed, his voice barely above a whisper, his own body still tingling with the aftershocks of his own release.

He reached out, his hand cupping her face, drawing her in for a deep, passionate kiss. Her mouth tasted of him, of their combined essences, and he reveled in the intimacy of the moment.

As their kiss deepened, Lila pulled away suddenly, her eyes glinting with a hunger that was both primal and insatiable. "More, Joshua," she commanded, her voice a low growl. "I need more of your cum. Feed me."

Joshua's body responded instantly to her demand, his cock stirring to life once again, despite the intense orgasm he had just experienced. He looked at her, his brows furrowing in confusion and surprise. I don't know if I can. I've never been able to go again so quickly before."

Lila's tail wrapped around his thigh, the pressure firm and insistent. "You can, and you will," she insisted, her voice brooking no argument. "Your potion has made your cum addictive, hasn't it? My body craves it, Joshua.

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