The sun was setting when Mina felt it; a churning inside her stomach and womb that filtered through her limbs. She slumped in the saddle, her eyelids drooped, exhaustion tugged at her consciousness, but she had momentum. One down, only six to go. It could be nearby. Maybe just a little further.
Then she was on the floor, having slipped from the stirrups. Breaths shallow and quick, the ground cool against her body, which itself burned from the bones outward. Jackson stared down at her. She tried extending a hand to pat his snout, however none of her muscles responded. Colours of fire spread across the sky. Or was it just her vision burning up? No, the light was fading. Shadows extended and coated the world, dimming until darkness engulfed it all.
"My head..." Mina groaned once consciousness returned. Her arms were lead as she rubbed her temples, even the fingers ached, although a strange tingling permeated her body, like energy crackling beneath the skin. A shudder passed down her back, followed by strange twitches. Jackson snorted nearby, calling her attention, but when she checked the horse was several metres away, drinking from a stream. She swore he was much closer.
Just need a drink, she thought and got to her feet. Though every muscle felt numb, she kept her balance with incredible ease, even as she walked to the stream on quivering legs. Mina knelt down and froze at the shimmering reflection in the water. She blinked, rubbed at her eyes, even splashed the deceitful water in them, yet the sight remained.
"Jules said something about this, didn't she?" Mina muttered and touched a cat ear atop her head. It sprouted from a mess of ginger hair, sharing the colour, while its sibling was brown with the same tone surrounding it. Most of her blonde locks remained though, just with the stray colours highlighted against them. Somehow, the eyes were more disconcerting. One eye retained its blue splendour, but the other was now a vivid green, like Neku's had been. Neku...
"Oh no," Mina said as the memory swelled her womanhood to fullness, and brought attention to a sweeping sensation behind her, limbs gliding through the grass. She checked and paled; two tails, one nubile like a cat and other a dog. Their cum must've done it to her. Jules warned her about that, but she could've been more specific.
Despite that, her cock tested her trousers to their limits. Strange, because she'd modified them to accommodate her member even when erect, yet the cloth struggled, clinging to dear life. Its hold broke with a surge through her shaft, tearing through into the open. She had hope it escaped any changes at first glance, then she noticed the needle-like protrusions spiralling down toward a dense layer of foreskin, like a sheath. Worse, her cock bulged where the two met in an approximation of a knot.
Most of her features remained human, however. Good thing she brought a cloak with her, she thought and retrieved it from Jackson, then pulled it on. Mere seconds later and she was fidgeting in discomfort, desperate to let her ears and tail into the open, but she restrained herself. After ten minutes, it became too much and she removed the choking garment. Hopefully she wouldn't need to be around humans for much longer than that.
What about Samuel? She lowered her face in dismay, reaching up to pull on her ears, hoping they might be removable, to no effect. They twitched in agitation at her attempts, then flicked toward a flurry of hooves striking the dirt. Mina pulled the hood back on and hunched over, to avoid being noticed. The horses and their riders trotted away, none even mentioning her presence.
"At least they'll be good for something," Mina sighed and took a long drink, pausing to stare at her face. Nothing about its shape had changed, though her lips might be plumper. Jules should've warned her this could happen. Wait, Jules could fix it! If a cock could be removed, then surely the same applied to these changes. A smile graced her lips, then disappeared with a wince as her canine bit into her skin. They'd lengthened as well.
She set all that aside, certain it would be fine once she returned, and set about her quest for cum once more. Along the way, she got better acquainted with her new form, including its capabilities. Mina had grown up stronger than most, though now she'd stepped into the realm of abnormality. A stray deer came bounding at them, seemingly startled, but she bashed it aside without difficulty or fear. When camping, her ears caught the sound of predators stalking them. And her tails, surprisingly, improved her balance such that she found herself perching on tree branches when surveying her camping grounds.
It was while she snacked on the last of her rations, that she realised the drawbacks to such a powerful form; the hunger for one. In little over a week since her transformation, with enough supplies that should've lasted two more after, the sack of food had emptied. She'd need to find a town soon, or hunt for her meals, a prospect that didn't worry her as it should have. What did concern her was the constant throbbing between her legs.
Not just her cock, but her pussy constantly begged for attention. Not half a day's ride and she'd pull Jackson to the side, while she scrambled into some bushes and pulled her pants down. Her production had increased as well, leaving any plant in reach covered in strands of sticky cum. Wet dreams kept cropping up as well.
The two mornings after were races to remove her trousers in time. She failed the first, forcing her to wake up to soggy bottoms, semen still fresh as it squelched against her skin and dribbled across her balls and pussy. On the second, she was in time for the spurts to go across her chest and face. On the third, she slept naked and cleaned up the emissions afterwards. Every morning, without fail, she'd be covered in cum.
And it did nothing to stop her libido either. If the roads were unstable, causing Jackson's muscles to work against her crotch, then she be off and masturbating in minutes. Even a week later, she was behind a tree, tails curled around her thighs and tickling her pussy, while her fist slammed against her sheath. As she'd suspected, the bulb at the base was a knot. She neared her orgasm, the fifth before midday, and it bulged to life.
"Oh fuck, here it comes," Mina moaned and groped at her breasts, pinching the nipple in time with her pumping fist. Pre-cum gushed from her slit to coat her hand and speed up the action. Her hand met the knot, which enlarged further every time, squeezing another moan from her lips. She stared at her surroundings, latching onto anything that reminded her of a pussy or cock, spurring her imagination to recreate Neku and Ino. Though the pleasure didn't compare, it sufficed.
That look Neku had given her before Ino mounted her returned. Her eyes had pleaded to be bred, to have Mina's cock buried deep, held in place as she flooded the womb to bursting with semen. As she was now, Mina would knot the cat-girl, stretching her tight, so not a single drop would escape.
She constricted her cock in what she thought a pussy would feel like. Mina clapped a hand over her mouth, tails at attention, while cum bloated her shaft and launched from the tip. Her envious pussy gushed as well, dousing the insides of her legs and the ground in her scent. Beneath her lurid pleasure, Mina took pride in marking another spot. When the last drop fell from both sexes, she collapsed in the puddle she'd made.
"Please behave," Mina said and got dressed, leaving the mess behind. Her softened cock strained her underwear. Its boosted size formed a slight bulge in her trousers, but the cloak concealed that. Back with Jackson, she checked the compass; still the same direction she'd been on for the past week. Either they'd reach a town or the next Monster before long. She hoped.
She stopped at the metallic, coppery scent of blood in the air. Curiosity and worry nagged in her ears, but the former won out, aided by concern for whatever was injured. Following the scent, she came to tree line and found a figure collapsed against a tree. Their face was obscured by a hood, much like Mina's. A sword laid by their side and a dagger was sheathed on their belt.
"Hey, are you alright?" Mina asked.
"I'm fine," a feminine voice said, which grunted as they tried moving. Mina dismounted and steadied them.
"What happened?"
"A Monster," the figure said and gestured beyond the trees. It was faint at such a distance, but a small house stood not too far off. Mina stood and checked the compass again, comparing its needle to the house; a perfect match. With a final check on the person, she mounted Jackson.