Psimimic

Sue stays, trapped by the invisible shackles holding her for... a time. To be completely honest, the second in command of the Fantastic Four isn't sure how long she has been held here. It is difficult to keep track of time when she is in a place as static as this.

It couldn't have been even a single day, but anything more concrete than that is beyond the woman's ability to deduce.

However, all of that changes when a section of the far wall of her cell gives a hiss, before slowly retracting, sliding to one side. There, floating at about the height of her head was a shimmering pink gemstone, roughly the size of an apple. Each of the twenty sides of the prism is a perfect equilateral triangle. A pink Icosahedron, or... As Johnny would refer to it, a D20.

The gem is held aloft in the air by a shimmering mist of pink that sparkles in the harsh light of Sue's cell. Slowly, the slowly spinning gemstone floats into the room, beginning to make it's way across towards the girl. Sue Storm is a scientist, just like her husband, and she is more than experienced with documenting even the most minuet of changes, so she easily notices that with each passing moment as the gem comes closer that the mist coming off of it slowly condenses and changes with each moment.

By the time that the Gem has managed to make it's way a quarter of the way across the room, the mist has already condensed to the point that it had a clearly humanoid form, with two misty legs that seem to stutter and lag as it tries to walk, and arms that move without any grace.

Reaching the halfway point, Sue is faced with a prospect that is more than a little worrying, but truly fascinating. The figure is not just humanoid, but feminine, and the things silhouette makes the Superheroine think of her own form.

Once it has reached the last quarter of the massive cell, the gem has sunken down from the height of Sue's head, rest down in the center of the mist, right where the girl's own heart would be. Even more fascinating was the fact that portions of the mist were beginning to thicken at different rates, and there surrounding the gemstone was mist that looked... almost like bones.

Then, once it is just ten paces away from Sue, the mist has thickened to the point that she is looking at something almost like a doppleganger, a perfect reflection of herself, with one glaring flaw. The creature is a monochrome pink.

Step, step, step. The creature begins to walk, and with each step blotches of color begin to form on the creature. First the blonde of her hair, then the blue of her eyes, and finally the white of her sclera and her teeth. Step, step, step, more and more color fills in the creature, until she stands right before the captured Sue Storm, a soft smile on her naked duplicate's face.

The replica of Sue slowly reaches up, running a hand through the trapped woman's hair, before making an amused sound. The touches continue down across the sides of her face, and further down still. The feather light touches follow down the sides of the woman, before the creature kneels down, sliding the girl's legs apart. The Invisible Woman strains to look past her breasts, trying to see what the her replica will do to the woman.

Sue hears the replica take a deep breath, before she feel something cold and wet press against the outside of her pussy. Slowly, the cold moves, first all around the woman's lower lips, before they slowly press in. Little by little the wet cold expands, reaching deeper and as well as widening, like the thing was modeling every detail of the girl's pussy, doing it's best not to miss even the slightest detail of how her reproductive organs act. All the while, the wet cold continues deeper and deeper into the girl. She tries to struggle, she tries to squirm from the horrifyingly erotic feelings as her pussy starts to get wet. Finally, the wet cold presses up against the deepest part of the girl, probing against her cervix. For all the many many words that a scientist like Sue knows, there are none that can explain the absolutely strange feeling of wet cold that somehow seeps through the entrance, rolling back across her womb, then up, spreading out as it feels it's way up her Fallopian tubes, and into her ovaries.

"Hmmm..." The replica hums, and then the whole of the wet and cold shivers. The pleasure is more than anything that Sue has ever experienced. On an entirely different level of sexual euphoria. Sue's body clenches, every inch of her cunt collapsing tight as she full on squirts. Something that the woman has never done before. "Hmmm..." The replica hums again, but the wet and cold does not shiver, instead the feeling begins to fade. The superheroine breaths a sigh of relief, so happy that the overwhelming sensation is gone.

The sigh turns into a silent cough when the woman feels a pair of fingers pressing up against her sphincter. No! The girl silently cries out, trying to demand that the doppelganger stops whatever it is doing. Her silent cries are for nothing however, as the fingers continue to press against her rear end. However it is not a steady pressure, but instead something almost more like... rubbing. Up and down and up and down, ever as the sensation of pressing against her back entrance never truly fades.

Maybe it is all the things that the Doppelganger has done, but Sue starts to feel a strange warmth on her backside. A warmth sinking into her body, slowly extending up her backside and into her guts. It is not a pleasant feeling, but it is also not an unpleasant feeling. Neither good not bad, just... is.

Even as the warmth continues to run it's way up the girl's insides, there is a hot and wet feeling that is running up the front of her body. Finally, the doppelganger comes into sight, slowly licking her way up the girl's body. All the while, a pair of hands continue to run feather light touches up and down the girl's body. That realization gives Sue pause, as she can see the fake version of her. Two arms, two legs, a pussy deep between her legs, and a head that is licking it's way up her body.

So what then, is the thing continuing to press against her ass. And... as if the very thought had been enough, she feels the two impossibly smooth fingers slip past the barrier of her rear end. Yet... somehow, the feeling of those two impossibly smooth fingers pumping in and out of her ass is gloriously good to Sue.