Sue Storm Stretches Herself Beyond What She Thought Was Possible

The Invisible Woman had given birth. Twice. A woman's ass was not made to pass a child, yet she knew that the muscle was elastic. That her body could do things beyond what she expected.

It was difficult to think, with Porkum's heady musk in the air. Sue Storm focused on the invisible tube in her ass. Slowly—achingly slowly—she increased the diameter. The frictionless **** spread her anal ring, and Sue had to fight against her urge to clench tight, to strain. Her colon convulsed, her stomach lurched and knotted. The blonde heroine pressed her face into the floor, face burning with shame. Yet she held the **** field in place and, minute degree by degree, in between gasping breaths, the tube grew wider.

In a moment, it was as wide as a finger. After a few moments, it was spread as wide as a normal-sized cock. Porkum watched with fascination, one pink paw stroking his massive manhood as he watched as more and more of Sue Storm's pink insides became visible. He had seen women gaped before, sometimes spread their assholes with their fingers and hands, sometimes with speculums or sex toys. Many of the heroines in his home dimension had a bizarre fascination with their buttholes, stretching and spreading them to inhuman levels.

Porkum considered that one of their more endearing traits.

Sue Storm, however, wasn't grabbing her asshole with both hands and stretching her asshole like a rubber band. There was no thrusting in and out. Her hole, virgin until moments ago, had not been trained and conditions, had never prolapsed and been reset. Her teeth were set in a grimace of primal discomfort as her asshole spread to two inches in diameter, big enough to handle any normal man's cock, and most dildos and toys. Yet Porkum's two feet of porcine prick demanded more, if he wasn't to tear her apart.

"Keep spreadin'" he said, "dark eyes glinting, unconsciously increasing the pheromonal cloud that surrounded him."

It wasn't pain, exactly. It was pressure. Strain. The focus required to stretch her ass wider actually helped keep her mind clear. While she was still definitely under the effects of Porkum's powers, her brain was able to at least think a little. Sweat dripped down her face as her ass spread large enough to accept a normal human fist, yet she wasn't done yet.

A plan formed. A terrible, stupid, dangerous plan...but it was all she had left.

All she had to do was spread her ass about four inches wide.