Luckily for Catherine, the rabbit-taur quickly got bored of fucking her over and over with nothing happening and hopped off in a huff to look for more people to fuck. This gave the un-mutated woman a chance to escape, even if her stomach and womb were stuffed so full of cum that she looked well into the second trimester. She took a moment to adjust her skirt, glad that she chose one long enough to hide her mother beneath it, before slipping out into the hall.
"Honey, I appreciate the sentiment but there's no way they will let you on one of the lifeboats with me."
"I'm not going to leave you here Mom, who knows whether or not the response team will find you if I just left you there. Besides there's a pretty good chance that if I take you off I'll instantly mutate from all of this cum inside me."
"I guess those are fair points…"
With Jane's worries settled for the moment, the pair set off towards the upper decks in hopes of catching a lifeboat to shore. Fortunately most of the mutants were in the areas with more uninfected people, and those that remained were mostly too absorbed in their own pleasure to care about Catherine. They were approached a few times by mutants wanting to infect Catherine but most of them were tricked simply by Catherine lifting her skirt to reveal part of Jane's shaft. This tactic only backfired once when a three-headed cow-woman bent over and begged for Catherine to fuck her in the ass, but that only cost them a few minutes and they were soon running past the milky mess the had caused.
Soon they were back in the passenger levels, having been chased down to the lower decks originally, and were making good time up to the closest spot where the map said lifeboats were. As they ran they came across the first uninfected person they had seen since hiding in the engine room. She was a taller white woman wearing the uniform of one of the restaurant's waitresses, the name-tag on her chest had "Sasha" printed on it in a bold font. Her red hair was in a mess and her makeup was streaking. She almost collided with Catherine as she rounded the corner, stopping just short before suddenly dragging the other woman into the closest cabin. Once in the cabin, She took Catherine over to the closet and closed them both inside.
"Sorry about that," began Sasha as she turned around to peer out of the slats in the door, "I was being chased by a group of mutants so there was no time to explain. We should stay put for a few minutes to make sure they’re gone. My name’s Sasha by the way."
“I’m Catherine”
Unfortunately for Catherine, the closet they were hiding in was fairly small; barely big enough to hold a couple's luggage, let alone two adult women. This meant that when Sasha turned around her butt was dangerously close to the other woman’s crotch, right in view of Jane’s eyes just beneath her daughter’s skirt.
“You know, most of the mutants chasing me were my co-workers. It was surreal seeing them turn into mutants, people I had known for years now almost unrecognizable. I know that a side effect of the liquid is that you want to spread it, but I still feel like it might be awkward to go back to work after this all blows over and everyone is vaccinated after they’ve chased me down and tried to fuck me. You probably didn’t come here alone, anyone you know got mutated?
“Y-yeah,” stammered Catherine, her lust being ignited through her connection to Jane, “My father and m-mother were both mutated.” Her sentence was punctuated with a twitch from Jane, the living strap-on biting her lip to prevent a moan from escaping.
“Your parents? What about your spouse?” Sasha pointed to Catherine’s bloated belly to make the reasoning for her assumption clear.
“OH, I’m, uh, not-” stammered the very not pregnant woman, trying to come up with an excuse...
“Don’t worry about it, I didn’t mean to pry.” ...only for Sasha to throw her an easy out. An easy out that was immediately squandered when Jane’s shaft began to grow hard, the sight of the other woman’s behind too much for a woman whose body became ninety-percent horsecock less than an hour ago. Eventually her shaft lifted up Catherine's skirt and slipped between Sasha’s legs. The sudden feeling of something between her thighs immediately caught her attention and she glanced down to see a flared cock head poking out from behind her.
"Eh? What’s thi-" Sasha's question was cut off when Jane came, her cum splattering against the door and flying up to coat the waitress's front half. She coughed as her mouth was filled with ejaculate in an attempt to prevent infection but her changes had already begun.
"You were a mutant?" Exclaimed Sasha, more surprised than angry. Her head was now level with the previously shorter Catherine, Jane's shaft now pressing into her crotch.
"I'm not a mutant! But my mother is, she got turned into a strap-on and I couldn't bring myself to abandon her, especially since I think she's somehow making me immune to being infected myself."
"Sorry about all this," apologized Jane, "I just couldn't control myself."
"It's fine, with how things are turning out chances were I was gonna get hit anyways. Plus now I have something to hold over the heads of the jerks chasing me, might even get them to give me half their tips for a week!" By this point Sasha had shrunk to nearly half her size, needing to stand on her tip-toes to prevent her body from being lifted by Jane's equine pillar. "That is if I can even still work after this…" The shrinking woman reluctantly took off her clothes, not wanting to be trapped in them should she shrink much further.
Just as Sasha shrunk to the point that her feet no longer touched the ground the second part of her mutation kicked in with eleven bulges appearing on her body, two on her forehead, four on her upper back, one on either side of her torso, two on below her breasts, and one on her crotch. Even as she continued to shrink these bulges grew. The ones on her head popped out into a pair of feathered antennae, like those of a moth. From the ones on her back, two pairs of translucent gossamer wings emerged. An additional pair of arms were formed from the ones on her sides, while the ones on her chest formed into two breasts identical to her now upper set. Finally the one on her crotch became the mushroom-shaped head of a penis, with a soft that continued to grow even as the woman it was attached to shrank.
Eventually Sasha's transformation ended. The ten-inch tall woman was now straddling Jane with her newly grown cock laid out before her. The shaft was nearly as thick and tall as she was, she couldn't even reach its tip no matter how far forward she leaned. Despite the huge weight between her legs, when she attempted to flap her wings she found them more than capable of lifting her body into the air.
"Well, this could have been worse I guess" the fairy’s comment was accompanied by her rubbing her hands along the erect pillar that now took up most of her vision "This girl is going to be very inconvenient however."
"I'm going to need to calm mom down before we can leave anyways, so if you want I…" Catherine's offer trailed off to an inaudible mumble, but Sasha understood it all the same. The fairy flew up to the only remaining human of the three and put the tip of her cock right next to her mouth. Wasting no time, Catherine took the tiny woman’s cock into her mouth and at the same time began to jack off her mother's cock. Despite her inexperience Sasha found the sensation of another woman’s mouth around her cock incredible and she quickly deposited her first load, an amount of cum that was somehow nearly her body's entire volume, onto the still digesting pile of rabbit-taur cum. It took a little longer, but Catherine soon managed to bring her and her mother to yet another climax, a feeling that both women were quickly getting addicted to.
After taking a quick moment to wash some of the cum stains out of her clothes in the sink, Catherine stepped out of the cabin into the—thankfully empty—hallway, Sasha now standing on Jane's flare with her arms wrapped around the shaft. Catherine soon reached the final flight of stairs before she and her two passengers were on the same deck as the lifeboats, only to be stopped by a curious sight: an elderly lady struggling to climb the steps.
"Excuse me miss, Do you need some help?"
"Oh yes, that would be appreciated dear."
Catherine hooked her arm with the old woman's and helped her climb the stairs. As they ascended the woman—who introduced herself as Lei—told Catherine about how she had ended up on this cruise ship. She and her husband Tai had immigrated here from China back when they were still young and had raised a family from their home on the outskirts of town. Their sixtieth anniversary had been last week and their grandchildren had all pitched in to buy them tickets to the cruise. Unfortunately she and her husband had been separated when the chaos broke out but she is hoping that he turns up on one of the lifeboats.
"...Or at the very least it turns out he mutated into something handsome" She adds to the end of her tale with a chuckle. By that point they were at the top of the stairs, the lifeboats just a through the outside doors at the end of the corridor.
"Thanks dear, feel free to run off ahead if you want I can make it from here." Despite Lei's words, Catherine was about to offer to walk the elderly lady the rest of the way but before she could, the woman’s eyes locked onto a spot on her face. "Oh you have something on your cheek, let me get that for you." With speed that only a doting grandma could have she rubbed her thumb across Catherine's cheek, a glob of thick, white fluid coming off on it. "What is this, frosting?" Before Catherine could stop her, Lei licked the drop of Jane's semen off of her finger, sealing her fate.
Catherine jumped back in surprise as Lei began to mutate, the old woman letting out a moan of pleasure as her body rapidly de-aged until she looked at most fourth years old. Her hair, filled with streaks of grey returned to the lustrous black of her youth. Her hair tie burst, to unleashing a waterfall of raven locks that cascaded to the floor below. From beneath her newly restored bangs a pair of long, segmented antennae grew, covered in amber-coloured chitin. This same shade of amber also overtook the brown of her irises. Her tongue then stretched out of her mouth as it grew stiff and round. Its tip morphed into what was unquestionably the tip of a penis before beginning to fork. As the two tips of her tongue pulled further apart the rest of the appendage became more cock-like until they pulled completely apart, becoming two, six-inch cock-tongues.
The changes continued to spread down Lei's body as two more pairs of arms grew in directly below her original pair, tearing her shirt off completely. The fingernails on all three sets of arms proceeded to grow long and sharp, their colour shifting to match her eyes and antennae. Her breasts then expanded into basketball sized orbs alongside a second pair that formed below the first. Her chest was then lifted higher as a second set of shoulders grew in between her original set and her stomach, complete with six arms and four tits. Each of these arms began to grope and rub any remotely sensitive spots they could reach as her changes continued.
Lei's stomach retained its chub, contributing to her MILF-y look that was further enhanced when her hips flared out as wide as her shoulders, her thighs and ass growing to accommodate her new figure and ripping her pants to the point they fell to the floor. Her legs then began to fuse together from about mid-thigh down, leaving a small thigh gap with her pussy—which has shifted forwards ever so slightly—nestled inside. The transforming woman fell to the floor as her feet were absorbed by the lump of flesh that had been her legs, which continued to grow longer even without more mass to absorb. Right at where her thighs connect to this mass an approximately foot long section of skin hardens into a dark-brown chitinous plate that encircles the entire circumference of the mass with a thin seam on its lightly coloured front. From the sides of this plate a pair of amber-coloured, segmented legs grow. Another of these plates forms directly below the first one, and then another below that. This continues until the entire tube of flesh—which now reached the bottom of the stairs at an incredible forty feet long. The final of the woman, now a centipede-taur's, segments had an additional pair of backwards facing legs that were tipped with two, foot-long horsecocks.
With Lei's transformation concluded, Catherine snapped out of her trance and immediately turned and ran to the outer deck. Luckily some lifeboats are still around, with the captain and a few of the remaining crew members organizing the escape. However, just as Catherine closed on the crowd of escaping passengers, one final obstacle to the escape presented itself.