Dr. Stone Gives Sue A Practical Demonstration

They were naked. Again. Sitting across from one another. Sue Storm couldn't help but feel a strange feel at this, even though the sensation of sitting on her chair, a towel placed beneath her, was ultimately very natural. Maybe it was the fact that Dr. Stone could see her, and she could see all of Dr. Stone.

"Now, Susan," Dr. Stone said, as she spread her shapely gams. "Let's begin with a refresher of anatomy, shall we?"

The heroine's gaze was drawn to Dr. Stone's smooth-shaven crotch as two fingers pulled aside her labia, like the curtains parting as the opera began. The pink flesh within glistened slightly in the light from the window. The Invisible Woman found her gaze locked on the pussy, utterly unaware of the corona of light that hovered around Dr. Stone's head as the psychiatrist carefully pointed out the features of her vagina. Anatomical features Sue was already well aware of, but which she had never studied so...intimately.

"Now, for this next part, I'll need you to turn part of my vagina invisible," Dr. Stone said. "You can do that, can't you, Susan?"

She could, and did. Before her eyes, the pale skin disappeared. Layer after layer vanished, muscle, fat, integument, arteries and veins...until Sue could see the pink tube of the pussy, leading up into Dr. Stone's body.

"Good. Stop there, let me show you..."

Two slender fingers slid inside of Dr. Stone's pussy. Sue's heart hammered in her chest as she saw them poke at the pink sock inside of the psychiatrist's body, watched the muscles clench around the digits. The doctor's words slid past her...G-spots, tightness, penetration...they seemed to sink into Sue's brain without registering with her conscious mind.

"Now my labia, please," Dr. Stone ordered. "I want to demonstrate the extent of the clitoris."

Sue replied without a thought. She focused her gaze on the little pink nub of Dr. Stone's clit. Then she made the hood vanish. As it disappeared, it uncovered more of the exquisitely sensitive organ. The Invisible Woman was rapt in fascination as she slowly uncovered more and more of it. The buried parts of the clitoris that flanked the labia, that she so rarely saw except in odd medical diagrams, but here were living...real.

"Very good," Dr. Stone said, and Sue did not see the blood that began to leak from the psychiatrist's nose. "Now watch c-carefully as I show you how t-to stimulate the c-clitoris. W-watch and r-remember...you'll...want to do this yourself...s-someday..."

Dr. Stone's voice was thick as her hands worked on her pussy. With most of her crotch transparent, the doctor had to work largely by touch. She showed how to manipulate more of the clitoris than just the small, exposed portion. How to combine penetration with other forms of stimulation. To find the sweet spots in her anatomy.

At some point, Dr. Stone's voice failed, and became simply heavy breathing. Soft moans as her fingers worked her half-invisible cunny. The shapely thighs trembled as her movements became faster, more forceful. Sue Storm saw her little pert asshole clench, the muscles in her buttocks shifted back and forth as unconsciously Dr. Stone picked up the rhythm. Blood flowed faster into the vessels around Dr. Stone's labia, visible through the invisible walls of flesh.

The moans grew softly, both in speed and volume. Dr. Stone's hips bucked on her chair, her back arched. Sue Storm leaned forward, unable to look away, her own thighs tightly together as she leaked into her towel. Anticipation grew and grew in both of them, Sue's heart hammered as she watched the other woman almost lose herself, heedless of the blood that oozed down from both of Dr. Stone's nostrils.

"W-w-witness me!" Dr. Stone ordered, a moment before her body erupted. Hot wet splashes splattered against Sue's face.

There was a flash of light that momentarily blinded Sue. She blinked, strange afterimages in her vision, and when her eyes cleared she saw Dr. Stone limp in her chair, breasts heaving as she sucked in air, her pussy fully visible once more and glistening.

The doctor sniffed and grabbed a handkerchief, covered her face to hide the blood.

"Did you...did you get all that?" Dr. Stone asked.

"Y-yes, doctor," Sue said, and realized how hot her face was, how hard her nipples were.

"Call me Karla," the psychiatrist said. "And...and I want you to practice, every night. Even if you can't make yourself cum, at least try. And next week...we can...review your work."

"Of course...Karla," Sue Storm blinked, as if it was the most natural thing in the world. She rubbed her knees together, her pussy burned with need.