He pulls her skirt down

"Sophie, can you let Robin take your jacket off? We need to see how and when your clothing reacts." She shook her head furiously. "No, im not going to keep flashing you two by moving my arms! Youve already seen enough." She said with a quiver in her voice, gripping her ample bosom tightly with one arm, the other covering her exposed pink lips.

"Fine, fine, no moving your arms." Harvey said, a hint of frustration in his voice. "We can certainly work around that." And with that, he yanked the fingers he had tucked into the hem of her skirt, pulling the fabric to her ankles where it suddenly appeared. Sophie yelped, bending over like she had just been exposed a second time. "Sophie, you look the same!" Harvey tried to communicate.

"My... mmy skirt!" She stuttered, gasping in shock.

"This way you dont need to move your arms, but it lets us see what's happening to your clothes. Look... its visible to us now. Im going to pull it back up slowly." With that he skowly slid it back up, noting when it dissapeared again. She didnt protest this time, so he experimented several more times sliding her skirt up, then down; dressing, then undressing the shy girl's attractive legs. She kept her skinny arms glued to her body, an act that almost amplified the tantalizing effect of her nudity. She tried very hard not to squirm as they discussed her skirt. But she was painfully aware of her own embarassment and the humiliation. Her ass was fully on display, and she was also paranoid thar her arms werent really covering what they should through the many layers.

"Right here Robin," Harvy said, kneeling in front of the blushing beauty. "Its not just while it touches her skin, but while enveloping more than an inch or so of her calf or thigh. Thats where it dissapears. See?" With that he pulled her skirt all the way up again, watching it dissappear around her breathtakingly gorgeous thighs. "Touching my shirt to her while im wearing it doesnt do anything either. Its only while something envelops her." He continued, tucking his fingers into her hem once again.

"Right, but how would her body know when the right conditions are met?" Said Robin. "If we could trick it to believe the item isnt being worn, we could possibly have visible clothes again!" He shifted, standing further to the side and behind her. He couldnt help takeing in the mesmerizing effect of the dissapearing clothing on his Roomie's bare backside. They way she bent over slightly made him hot under the collar. Her plump bottom had the tightest, smoothest curves rising and dissapearing into all the sexiest places. He had never looked at her in this way before, but he couldnt control his mind right now.

"That's why youre an engineer!" Harvey interjected, glancing back at Robin and tugging the skirt down to her ankles again. "Do you think you could make something that would do just that?"

He was interrupted by another shriek and outcry from Sophie, louder than before. She danced her feet back and forth like a child before backing away a ways from the boys. Harvey and Robin looked her and then each other quizzically. Her jaw was hanging open and her bright beautiful eyes shone with a ****, pleading embaressment. "Soph, what's wrong?" Robin asked, unable to see anything wrong.

"You cant see??!" She squeaked, her high pitch voice cracking in an adorable tone. Harvey and Robin both moved toward her, looking confused. "No, behind you!" She squealed again, breaking her hand away from her chest instinctively to point behind them. Robin looked, but Harvey kept his eyes glued on her once-again naked curves and breasts. She was so lovely and beautiful. He was half tempted to just sweep her into his arms and kiss her soft delicate nipples untill she squealed so loudly the neighbors could hear! His overactive imagination was cut short as Robin tapped his shoulder, getting him to look behind them at the skirt bunched up on the floor. Lined up perfectly with the hem was a bright pink pair of lacey silk panties. Her panties. How? Had he? Oh... he'd accidentally stripped her? So she was bottomless? On second thought, did that even matter as much in a situation like this?

"Uh! My bad. I mean... uh, if it makes you feel any better, you look exactly the same still!" Harvey tried to offer, blushing himself now.

Sophie did not find this reasuring as she let out another gasp of embarassment. Her thighs twitched back and forth involuntarily. Both of her hands were now clamped in front of her pussy, leaving her glorious bosom on display. She tried to speak, looking between the two of them, but nothing came out. Just the cutestest microexpressions of shyness, her mouth open, bright red lower lip extendeding into the tiniest pout, and her perky nips... was that... arousal? Harvey went over and picked up her pink panties, examining them. Then he glanced at the feminine lips of hers, barely covered by her shaking fingertips. Her hips betrayed another slight quiver and shift. No wonder the poor girl was at such a loss for words. She had been getting drenched while they were inspecting her!