As you and Mona walked away from Susie's room, you were just in time to catch Sarah emerging from her room after finishing her homework for the morning. Not noticing you with any of her three heads, she walked the other way down the hall before taking a left into the living room. Inside, she found eight of your other bodies having sex together in a mess of fair and lavender skin. Paying no mind to the various permutations of you kissing yourself, you kissing Mona, and Mona kissing Mona, Sarah began to undress herself. Now fully nude with her trio of three-foot long cocks standing at full mast, she asked, "Mind if I join in?" Speaking with one of her lipples, she added, "I could use a good screw after listening to all of you while writing that paper."
Disentangling yourself from your other clones, one of yourselves on the floor got up and replied with three voices in sync, """Why of course!""" Joining in, one of Mona's six heads added, "The more the merrier!" As you stepped forward and began working with your bodymate to stroke Sarah's dicks, finger her vaginas, massage her breasts and otherwise caress her every way possible with your collective eighteen hands, your body in the hall with the phone generated a new sentence about Sarah.
"The three-headed student is moaning from the conjoined hermaphrodite's relentless pleasuring."
Considering that you made the last couple changes, you offered, "Hey Mona, did you want to choose how to edit this one?"
Shaking a few of her heads, the succubus responded, "Nah, I really liked your last two choices, so I wanna see what you come up with this time too." Talking with a different mouth, she stated, "Maybe the next one."
Shrugging, you said, "Alright, I'll try." You thought of changing the verb to give Sarah some sort of new ability you hadn't given someone else yet, but for whatever reason you were suffering some mild "writer's block" at the moment. As you continued pondering how best to modify the statement, all of your bodies split into three copies each, thanks to the ministrations of Mary in a bedroom somewhere. Though your mind felt a little clearer afterward, you were still very distracted by the other acts that Erika and Mary were performing with you throughout the house. As you thought of the couple, you realized that both parents were monster girls, but both their daughters were still human. Deciding to roll with that train of thought, you changed the sentence to say:
"The three-headed kitsune is moaning from the conjoined hermaphrodite's relentless pleasuring."
Suddenly, you could feel several sources of warm, soft fluffiness caressing your body that was having sex with Sarah. Getting a better look at her with one of your other twenty-three selves in the room with her, you saw that all three of her heads now had attractive fox ears growing out from the top, and her original human ears were nowhere to be seen. More striking, however, were the nine big, fluffy fox tails growing out from her posterior, most of which were currently curling around to cradle your copulating duplicate. Each one was white at the tip while the rest of the fur matched her (and by extension, your) hair color, and felt incredibly comforting to touch. Once you finished ogling her foxy features, you noticed that the rest of her body got some upgrades too. Sarah's breasts had grown considerably, now sitting somewhere around a G- or H-cup, and she was about as tall as you now. Overall, she looked a bit older and sexier than before, with a pleasing hourglass figure and golden yellow eyes with fox-like pupils that betrayed a newfound bottomless lust.
Getting curious, you had one of your other clones take a peek inside Sarah's room to see if anything had changed in there too. Sure enough, the textbooks and notebooks were gone, replaced with a miniature model of a Japanese shrine with some incense lit in front of it. A glance at her open closet also revealed that part of her wardrobe had been replaced by kimonos and cocktail dresses. "Did that last change make her older...?" You quietly wondered.
Turning the tables on you, Sarah was now using her six hands to deftly pleasure your phalluses and pussies while her tail-tips teased your dicknipples and nipplecunts. Meanwhile, Mona interrupted your musings by saying, "Mmm, another great choice... She looks so hot like this, and those tails feel divine." Whispering in one of your ears, she asked, "But what if we try to make her even better?" Taking her hint, you kept the app focused on Sarah and generated a new statement.
"The seductive kitsune is pleasing the conjoined hermaphrodite with her tails while they have sex."
"Ooh, I think I have an idea for this one," Mona declared excitedly. With your permission, she continued, "Try changing 'pleasing' to 'converting'." Winking with another face, she explained, "Just trying to see what happens when we take a page out of my own book." Wondering just how the app would interpret the word, you entered in the modification with a feeling that was a blend of concern and exhilaration.
Reality shifted once more as you started feeling something strange happening to your body that was being stroked by Sarah's tails. Gradually, your ears started migrating up the sides of your heads as they reshaped themselves and sprouted short, soft hairs. Concurrently, you and Mona both felt pressure building up around your cock-tails until nine bushy tails began to grow out in a ring around each of your sets of prehensile appendages. Additionally, Mona's lavender skin started changing tint until it matched your own fair skin, her faces and hair changed to become duplicates of yours, and then you felt your breasts grow another cup size while your waist got a bit thinner. Finally, you felt your consciousness slip away from that clone as your other duplicates nearby observed her eyes turning golden and gaining vulpine pupils. After a few moments of standing motionless, you witnessed the new twenty-seven-tailed kitsune raise her numerous hands and start feeling herself up.
"Mmmmm, this new body feels positively amazing," one of "your" heads said before one of "Mona's" former heads remarked, "Thank you for your generous 'donation'. I must say, I never expected that I'd get to experience the power of having twenty-seven tails."
Figuring out how the app interpreted the word "convert", you asked her with another nearby body, "Sarah?"
"""Of course, do you see any other kitsune around here?""" the converted clone answered with one head on each of "your" torsos in tandem. "Well, besides my original body, anyway," the three-headed version of Sarah added. For whatever reason, the thought of having your body taken over by this sexy kitsune was turning you on, and she definitely took notice of your rapidly hardening penises. Speaking with seven heads across both bodies in sultry, hypnotic harmony, Sarah requested, """""""Surely you wouldn't mind partaking some more in the spread of my beauty, would you?"""""""
Before you could even reply in the affirmative, Mona jumped at the opportunity, "Oh, yes please!" Well, at least you were in agreement.
"Then by all means..." the kitsune started.
"Come." "Come." "Come."
"Come." "Come." "Come."
"Come." "Come." "Come."
"Come." "Come." "Come."
As if you were in a trance, you felt unable to resist her invitation as five of your bodies slowly walked towards the pair of foxgirls. While you started to gently stimulate both of her, she eagerly reciprocated not only with her hands and mouths, but also with her numerous new cock-tails. Before long, she started caressing all of you with her many fox tails, allowing the conversion process to start anew. Halfway through the incredibly pleasurable affair, you heard a door open as one of Mary's clones scuttled in.
"Ah, I was wondering where you got off to," she commented, unphased by the transformation going on in front of her. "Have you seen your sister around?"
Replying with one of her newly converted duplicates, Sarah responded, "No, I think she's still 'doing it' with her girlfriends in her room."
"Oh good, I just wanted to make sure she was getting along with Julie," Mary stated warmly, "I won't disturb them then." Smiling lecherously, she turned toward one of your copies and asked, "Got room for one more?" A moment later, she started undergoing mitosis, leading her to revise her statement, "Well, I guess two more, haha."
Climaxing yourself with some far off bodies, all of you multiplied by thirty-two, causing you to fill the room and spill out into several adjacent bedrooms and hallways as well. Noticing that you must have had two dozen clones in contact with the seven-bodied kitsune's many tails without anything happening, you asked, "So, you don't automatically transform anyone who touches your tails?"
"No, of course not," Sarah answered in a matter-of-fact tone, "If I did, I would have accidentally converted one of my mothers long ago."
"I suppose you have a point there," Mona agreed next to you.
"Though now that you mention it, don't mind if I do," the vixen declared with a mischievous grin as she started taking over all twenty-four of your bodies that were touching her.
Clearly getting turned on from the sight, one of the Marys present asked, "Does it... feel good?"
"Mmm, it feels incredible," one of her Mona-lipples spoke up, to which you nodded in agreement.
A bit hesitantly, the mother stated, "I've always kinda wondered, especially since Sarah hasn't converted anyone before now, so I had nobody to ask." Wriggling up to one of the nine-headed Sarahs, she tepidly stroked one of her tails with two tentacles, saying, "You know... there are more than enough Marys running around, so I wouldn't mind offering myself to you just to see what it feels like."
Surprised, her daughter replied, "But there's no coming back from that, you know..."
"I know, but at least the rest of my clones will have gotten to experience it," the scylla said, raising a third tentacle to pet another fluffy tail. "Please?"
"As you wish, and I'm sorry," the kitsune acquiesced quietly.
"Don't apologize, I- we've wanted to know for a long time," Mary said as her voice warbled and overlapped with itself as every copy of her started another round of mitosis.
Hesitating, Sarah asked, "Should I wait til you finish dividing before I start?"
Shaking her now doubled head, her mother responded, "No, do it, then it will feel twice as good for both of us."
Nodding with four heads, the foxgirl started the process. Even while Mary continued to subdivide, her hair started changing to match Sarah's color while her ears transformed into fox ears. Like when you got converted, the scylla gained nine tails in a circle around the lavender cock-tails from her merge with Mona, and the purple tint on her lower six arms faded to Sarah's skin color along with the rest of Mary's upper body. As her eyes and both pairs of what were Mona's eyes turned a familiar yellow color, you could tell that the body transfer was now complete.
Immediately beginning another round of mitosis from how aroused she was, the two other Marys in the room remarked, "Wow, you weren't lying! Thank you for that wonderful experience."
Meanwhile, Sarah was experimentally moving around her new tentacles, getting used to the foreign limbs rather quickly. Unable to help herselves, she turned both scylla bodies towards each other and began three kisses between all six heads. As her tentacles coiled around her cocks and massaged her tits, you noticed creases appearing along her heads and limbs, signifying that she was about to undergo mitosis. Only after she fully split into four did she realize what happened. Smiling widely with twelve mouths and lipples each, she commented, "Ooh, this is going to be fun."
Masturbating while you watched with Mona, three of your bodies ejaculated, causing all of yourselves to triplicate. Inspired by the sight, Sarah softly questioned, "Hmm, I wonder..." Immediately, she had four of the bodies she stole from you start screwing each other. With her skill, it wasn't long before all four of her came together. To your surprise, all thirty of the bodies she converted from you began to split into four while her original body and her scylla copies were unaffected.
"I'm *really* going to have some fun..." all one hundred and twenty-five of Sarah's bodies declared in unison.