Mia stretched after her long night. It was difficult to find time for it anymore, with her libido always increasing alongside her body. Everyday, the warehouse felt tighter and tighter, not least because of the inflated girls that frequented her home. Annie was mostly emptied, just in time for classes, and Roshni had been called in for work that night, sparing her from carrying gallons of centaur seed. Though she made it clear she expected compensation for missing out.
"Looks like you only grew a couple feet today," Roshni yawned, rubbing at her eyes while she stepped around unconscious belly mountains.
"Only a couple feet?" Mia snorted and walked with her, eager to get a few litres of coffee into her system, "Pretty soon it'll be 'you only grew a mile, that's not so bad'."
"Was that an impression of me? If so, it sucked," Roshni said.
"I thought it sounded pretty close," Annie said, waddling over. Her belly wasn't her personal mountain anymore, but was still massive compared to the petite girl, whose ass was at least partly responsible for Mia's continuous decay into delinquency, "Come on, we need to hurry or we'll be late."
"Yeah, yeah. Just clean me off, then we'll go." Mia said and laid on her side as she drank, allowing the mobile girls to get at her trio of phalli, licking them clean of that nights various coatings. If they didn't, the musk would get around and dozens, possibly hundreds, more girls would come back with them. Half the campus already considered the warehouse a second home.
-Meanwhile, dozens of miles away... in another timeline-
Amy panted and held onto her balls for dear life. Several feet ahead of her, Amanda and Eliza were just visible beyond her cock, their hips pumping as they moaned above the lurid squelching of displaced pre-cum. The other sorority members only paid half attention to it, the occasion almost normal for them now, while they played in the pool. Ominous rumbling signalled the end.
"Maddy... Eliza..." Amy moaned, cock flexing as they hilted the massive head. So strong was its grip, that the sudden lurch lifted them both. To keep from falling, each futa jammed their balls in as well, locking themselves to the tight slit. Even so, pre-cum gushed by the litre and fell in the pool - not that anyone seemed to mind - until it was cut off. Tightness spread through Amy's shaft, veins standing out further, while her balls pulled taut against her body. Loose folds of her scrotum hung down to her feet.
"Gonna cum!" Amy cried and squeezed around her mammoth testicles with her thighs, jettisoning their payload with all the force of a fire hose. In tandem, Amanda and Eliza wrenched their members free, then latched onto the sides as the first of many ropes launched into the air. The Amazon strained her arms to keep it upright. Last thing they needed was her blasting a hole in another house. Or twelve.
Despite her orgasm, neither of her lovers stopped their ministrations. Eliza ground her whole body into the head, cock oozing its own passion as well, while Amanda slid all the way back down to wrap herself in Amy's sack. As the skin shifted against her sensitive testes, her shot was renewed, flying high. An airplane flew overhead and narrowly avoided a direct collision, instead only being glazed in Amazon-cum.
"Guess this means your formula's a success?" Amanda asked once the giant futa had calmed down, cock settling down and dozing on the ground, draped over her balls, the dregs of semen oozing out.
"I'd say so," Eliza said. Both the smaller futanari had moved to the pool, using the mostly untainted water to wash out the cum stuck in their hair, "I could definitely refine it more though. Up to twice as much volume."
"Make it happen," Amanda chuckled, looking around at the mess Amy was responsible for.
"And try not to make me grow this time," Amy added. Starting the day at just over thirteen feet, then drinking a random formula Eliza gave her and growing another three in minutes was exhausting. It'd be nicer to savour the present more.
"She's talking nonsense," Amanda said, waving a dismissive hand at the Amazon, "Bigger the better."
Amy rolled her eyes and stood up, "Come on, we need to clean up and go shopping. I don't know when my next gig is and I don't have anything to wear in the meantime."
"Why bother? No one seems to care," Eliza observed, all their eyes shooting to the fence, where Jade was organising a mile-long line of peepers, charging five bucks to look at Amy unobstructed. Ten if they wanted to sneak a feel, part of why Amy had a spontaneous threesome.
"I'd rather not have strangers constantly staring at me while I'm relaxing with my girlfriend," Amy said, "Privacy's a big deal you know."
"Yeah, I get it," Amanda climbed out, whipping her hair about and shaking loose the errant globs of jizz, "Well, let's go."
-simultaneously, across both timelines-
Mia and Amy, both accompanied by their closest lovers, walked into an intersection. As was common for futa of their size and libido, they were accosted by touchy people, eager to sample their enormity. This resulted in arousal, which led to haste. They stepped into an intersection, each eager to avoid a public scene beyond their control.
"Watch out!" Amanda, Eliza, Roshni and Annie all yelled to their respective giant as a truck ran a red light and hurdled toward them.
Both froze in place, then instinct kicked in and they braced for impact. Metal curled around their frames, shards flying loose and narrowly avoiding onlookers, while other cars screeched to a halt. A panel skidded across the asphalt, sparks flying and coming to a stop at the giants' feet reading; 'isekai trucks, bringing you to another world'.
It was a momentous situation, one that would likely never be witnessed again in anyone's lifetime, and only became far more extreme. A shadow fell across the land, blotting out most daylight, and brought everyone's collective gazes up. No bigger than a bus, but wreathed in flame and destruction, a sphere shot toward the earth in both timelines. Mia and Amy had the good sense to turn tail and run, grabbing their friends along the way.
Fragments broke away from the fiery ball and slammed into the ground. More and more separated, shrinking the death ball until it was no larger than a basketball. Like a giant seeking missile, it followed Amy and Mia. As it flew toward their heads, both ducked, causing it to land dead ahead with a deafening thud. The flames died down and all that was left was smoke.
"Phew," both sighed and wiped their brows, "Oh what now?!" They asked in response to the comet rising up, quivering as if in anger at missing its target. With a sound like an anime girl's scream, it split apart and blinding lights shot forth, enveloping Mia, Amy and their respective passengers. Strangely, it ignored everyone without connection to the two, leaving them dumbfounded at the disappearance of their respective world's giant futanari. But where did these two and their companions end up?
-Mia, Unknown Place-
Mia shot up with a gasp and struck her head on a low hanging wooden beam. Rubbing at the reddened area, she looked around for something familiar, even hoping for the comet or truck to be around, but nothing. Not even the architecture around her was known. Straw ceilings, hard floors only partly covered by wood, and what looked like duvets bundled up around her in a facsimile of a bed. Even the 'door' was just a pair of sheets hung up.
Even with her folded legs, she couldn't straighten up. Wherever she'd awoken, it was ill-equipped for a giant shemale centaur. Peculiar noises caught her attention; horses snorting and hooves clopping along. She leaned over and parted the curtains, peering outside. And jerked back, looking around for a camera. This has to be a prank, she thought and checked again.
It was the same as before. People walking around in traditional Japanese attire, lugging bags of rice, or leading horses that drew massive carriages filled with vegetables. Something had them on edge as they shouted to one another, gesturing toward something beyond Mia's view. She poked her head out a bit further and saw a massive table, decorated with enough food for several of her, and still more was piled on. Someone finally noticed her.
"Um, hi?" Mia said.
"Okite iru! Megami-Sama okite iru!"
"I... whoa!" At his call, the workers all stopped and flocked to her, clasping their hands together and bowing low, muttering words she couldn't understand. Their tone was one of reverence though. Did they think she was a god?
"Mia! You're awake, thank god!" Annie's voice broke through as the small girl shoved her way through, followed by Roshni. Both were dressed in yukata, though they were cut down the middle, allowing the air to play between their thighs. It was a cute look for them.