Eldritch Goddess Zoe

"Okay, Zoe, just remain calm throughout all of this, and we'll have you beginning your rebirth in no time!" You sounded quite chipper for someone who was about to transform their creator from one monstrous being to another, but you were having fun. You felt Zoe on the inside, who had been quiet for some time as you roamed in her form, finally stir.

"Let's do it," she finally said in your ear. Zoe normally had this air of confidence, where even as someone moved her body, she seemed perfectly in control of everything. After you found a way to penetrate that barrier, she'd been sort of awestruck the whole while, including now.

You nodded, and looked to Chloe. "This is going to look... very strange. I promise I won't hurt Zoe, but it's going to be pretty intense. But just keep a little distance, in case things happen a little too quickly at times." Chloe had no plans to argue with whatever you were about to accomplish, and took a few steps back. She pulled out her phone, setting the video to record. You noticed, but didn't mind. Of course she would want video evidence of whatever you were about to do!

You fell to your knees, putting your hands on the ground as you braced yourself. Zoe's back opened up, splaying out widely as you opened up a doorway to the other dimension, in a sense, moving muscles that Zoe didn't even realize were under her control it seemed! Or, likely, she may have never known, if it wasn't for your snooping around in her body. You felt a rush from Zoe's nervous system, moaning a little as you did all this--it was all that pleasurable fiery feeling again, swelling up inside her that you were linked to. "Haaaaahhhhh..." you breathed deeply as a long, slick black tendril began to slide out of your back, followed by another, than another... these tentacles looked to be the diameter of tree trunks, their texture looking like tar. Along their lengths were glowing spots, colored amber, creating a mesmerizing pattern as more of the tendrils came into view. They grew thicker, and bigger... stretching out of Zoe's back in impossible ways! It seemed they were also able to deform easily, like how an octopus might be able to slip its body through a hole the size of a coin if it wanted, despite a seemingly larger form.

Chloe took another few steps back, her hands shaking a little. "This is... a bit more than I expected, to be honest..!" It was probably quite frightening to an outside observer, but there was still no pain. Rather, as the tendrils came into contact with air, you began to feel Zoe's true size come into perspective, and it only send new pleasurable waves shuddering through you.

Soon, dozens of tentacles were sprawling out from Zoe's back, spreading outward to grip onto metal beams, construction equipment, anything that seemed massive and heavy. You wanted to use their leverage to help pull the rest of the body out... these tentacles were already a significant new mass, writhing behind you, but as you began to pull out the true 'body' of Zoe, you started to scream. It sounded like pain, but it felt so, so amazing to bring this whole form out into the open! On its own, this body did resemble that of some sort of massive cuttlefish, itself the size of a semi truck, jutting from your back. Chloe had to sit down to be able to process what she was seeing, it was beyond what she might have ever imagined. Zoe's proper body had the same sort of amber lights, and remnants of eyes on either side of its head, though you could tell they only barely detected light, having been in a dimension where things like light and air and such were probably not available without creating 'pockets' of the current 3D space in them, sort of like how Zoe's internal body worked. So those eyes never had to see anything before.

Once the main body was out, one final tendril began to extend, a long, slender one that extended from the rest of the tentacles, but this one served a different purpose. Once most of it was out, Zoe's human-shaped body closed up, once again regaining a normal human shape, save for the tendril that extended from roughly between her shoulderblades. As you calmed down, gasping for air, you turned her human head toward Chloe, with a smile. "Phase one worked fine. Two more to go! This next one's more like... making hand puppets. It'll be easier if I don't have to try to think about a disorganized mess of tentacles."

Chloe just stared, wide-eyed, without offering any words about what she just saw. Zoe was likewise stunned, so you continued, briefly realizing how casually you went about everything you were doing. With dozens of tentacles, you had a hard time understanding how to move more than a couple at a time, though they felt a lot like long fingers. They were rather flexible, both in terms of how you could bend them but also you seemed to be able to flatten them in places, creating shapes more like ribbons than cylinders as you stretched these new limbs of yours out. To help you focus, you moved Zoe's human body with what to you seemed like complementary movements to help you organize your thoughts, but to someone else it might look like Tai Chi, or some ancient ritual.

Tentacles began to organize into groups, swirling and twisting, bending and flattening, twisting and braiding to add strength to their shapes. There was a lot of mass to this body, but you recognized that it was surprisingly light, especially since there was quite a bit of hollow cavities within it. You'd formed five groups of tendrils, and their shape was starting to come into focus--two groups looked like long, shapely legs, down to the tips of tendrils that were intertwined acting like toes. The same was true of the arms, patterned with those strange amber glowing spots along their length. You formed a torso from the largest tendril group and part of the main body, sculpting an hourglass shape from the patterns of the tendrils you used. flattened ends of tendrils cupped around extra masses of tentacles, creating the appearance of massive breasts, also lit up with the amber pattern. Most of the tips of tendrils from this group condensed at the neck, and then expanded outward to create a sort of cabbage-like head with tendrils spilling out of the back like hair, with the largest two flattened tendril tips holding it all together, like hands covering a face. These tendrils seemed particularly special, with three large amber spots on each, creating this illusion that your newly-designed body had six glowing eyes!

As for Zoe's regular-sized human shape attached to a leash like an anglerfish's lure, you began to slowly retract it into the head, just to protect it for the moment. You left just enough of a gap that you could lean the upper half of Zoe's smaller body out between the flat tentacles that formed her face, looking much like the pilot of a giant mecha suit in the process.

Now with everything organized into makeshift limbs, you had a better sense of how to move this form. With the massive tar-colored arms, you began to prop this body up, kneeling in this massive form, before slowly standing fully upright. The cavernous opening was roughly five stories in height, and you could almost reach the top if you extended your arms fully upward. You did so, like you were stretching out, and then gave Chloe on the ground a cute little wave from your massive, cosmic horror form. "Uh, hey down there!" You spoke with your human-sized head, not really sure yet how to make the big body speak. Zoe's full, frightening glory was on display as she stood--these limbs approximated the correct shape of a shapely woman, four stories tall, with tendrils overlapping each other to try to create a consistent, unbroken shape where possible, but it looked like your body was still made up of different sections, particularly at the hips and shoulders where the groups of tentacles only seemed to rest against one another, not trying to form a seamless continuity. It created a strange effect where your torso almost looked like it was floating with these gaps between the limbs... Even with much of the main body residing at the position of your stomach, some of it extended out behind you, like the abdomen of an insect. It wasn't very large compared to the rest of you, but that was where the reproductive chamber was contained, so it was going to get a lot bigger in the near future...

Chloe silently waved back, mouth hanging open. She was clearly stunned by what you were able to accomplish without a hint of difficulty. And that how much of Zoe had been hidden this whole time, all these features and organs and structures to support the regular-sized woman she knew with a very strange set of abilities.

Phase three was undoubtedly the trickiest part--but despite where one might think a brain might reside in the humanoid shape you'd made, the 'head' was really just a protective encasement for Zoe's normal-sized body. All the action was taking place at your large body's waist and abdomen, as your elastomer went to work. The taffy-like structure did its job, pulling in a significant mass of it from this extra-dimensional space when you had done the same for the rest of Zoe's body, as you ferried your own human form around inside her internal structures. The elastomer reached Zoe's center of her nervous system, a massive structure that was much like a brain inside a protective shell, connected to this larger body. With enough of your elastomer material, you were able to swarm over her entire nervous system encasement, creating a new 'shell' of elastomer material that seemed to intercept all of the signals going to and from her mind. You could feel Zoe's unbridled excitement, and fear, at what you were about to do...

The elastomer severed the connection Zoe's mind had to her body, right as your human form entered the new elastomer shell. While the body, this towering eldritch abomination that briefly stumbled at this switch, was still once Zoe, there was no doubt that you fully commanded it now. Zoe's future was entirely in your hands. You felt this connection to your new massive body in ways you hadn't been able to comprehend until now, truly feeling like you were one with it, every movement and process was totally defined by your mind alone!

The remaining elastomer ferried Zoe's brain out of the portion of your body where it had been kept, bringing it into the reproduction chamber. With everything ordered in 3D space, it was laid out far differently than when you were able to adjust Zoe's internals to match however you'd liked with her upper-dimensional tricks, where your bodysuit-controlling organs and everything else previously seemed adjacent to each other, even though now they were far apart by the length of a massive tendril. But that didn't matter, it made her body easier to understand at the moment.

You felt the elastomer latch on in your abdomen, bracing yourself for the rush of pleasure you felt as the sensitive area responded in kind, condensing around the elastomer and Zoe's brain within it, creating a warm, ideal environment to begin the conversion process. Had you simply absorbed Zoe's mind into your elastomer you could have done this overnight, but you were going to give birth to a new being, and it was going to be worth the wait... as long as there are no unforeseen intrusions into your privacy.