They try covering her ASSets

"I have an idea! But first, what have you tried wearing so far?" Asked Robin.

"Everything." Sophie said, frustrated. "Robe, pants, skirt, shirts, sweater, jacket, shoes, socks, a towel, a blanket, and even jewelry."

"Any underwear?" Piped up Harvey, curiously. He didnt know if it was relevant, but he still wanted to know.

"Yes, im wearing uh... a white underwire bra and um, pink cotton panties under my shirt and skirt right now." Sophie said shyly. She was painfully aware that Robin might have a visual of where her panties should be, hugging her knees as much as she was. She wanted to remind him that she was not indeed naked down there, even if it looked like it.

"Okay. Great!" Robin tried to say encouragingly. Lets try everyday objects and materials. Maybe we will find something quickly that we can use to cover you, then worry about your clothes after that."

"Okay!" Sophie said, sounding hopeful for the first time. "What do you need me to do?"

"Go ahead and stand up." said Robin "Harvey, you bring over different things and we'll try seeing how they react."

Sophie stood up, covering her privates again with her hands. She blushed as Robin came closer, looking her over with his big brown eyes. Why had she never noticed how attractive his eyes were before? Why did she suddenly have butterflies when he looked her up and down. It didnt feel creepy at all, just tingley. Both of the guys made her feel that way when they looked at her. She'd felt it before from Harveys past advances, but she'd never noticed it with Robin. Everything with him had always been so platonic. But now both of them made her feel a touch more aroused each time they looked at her. Hopefully this wouldnt continue. She needed to calm down!

"Ok, now turn around and face the wall." She heard Robin saying. "We can test covering your posterior if thats less embarrassing."

Sophie's jaw dropped as she started to turn but froze instead, a little too embarassed. "My what? My ass? But youll see it all naked if i turn around!" She cried.

"Well we'd be happy to try testing items on your boobs... or your snatch... all youd have to do is lower your arms." Harvey said with a smirk.

Sophie scoffed, her face wrinkling for a second. "Fine, just... try not to look." she finally said. She turned around and faced the wall, her naked back, legs, and ass facing the smiling boys. She did not appear as fine as she claimed, however. Her legs were trembling with the humiliation. She felt like a little girl again, about to be punished.

"Dont worry, Soph. Its dark. We cant see much with the lights off." Robin affirmed. This wasnt very true and Sophie knew it. But she appreciated the positive thought all the same.

They grabbed a few things and tried lining it up against her skirt covered bottom. These either failed to stay visible, or failed to cover much. "Hey." Robin said. "Do you think we could pull down your skirt just a few inches? It wouldnt look any diffetent to us, but the tests should be performed against bare skin if we want to cover you up quickly." Sophie sighed. She knew it shouldn't matter, but it felt like it did. Maybe a few inches wouldnt hurt. She was drawn in by the 'cover you up quickly' part. So she agreed with a shy nod. A nervous "whoosh" later and Harvey hooked his thumbs into her waistbands and tugged both skirt and panties down to her trembling thighs. She yelped!

"Eeeeek! Guys, my skirt!" She squealed, instinctively spreading her legs apart just enough to keep it from falling any further.

"Sorry!" Harvey said. "I cant really see where they are at all. Let me help." With that he lifted the hem upto the top of her thighs, stopping as his fingers brushed the soft undersides of her butt cheeks.

She squealed again, more softly this time. She had to spread her legs a few more inches to pin her clothes to the higher position on her thighs. "Please hurry, guys!" she pleaded.

"Perfect! Said Robin, both in reference to her position and her gorgeous ass. He almost pinched himself at his good fortune. "Okay, lets try a textbook." He said, taking one from Harvey and pressing it in various ways against her ass. Anytime it had any significant coverage, it dissapeared. But if he tried lining up the book spine against her crack, for instance, it stayed visible (though the contact made the virgin squirm adorably. He made sure to test each item along the crack at least once, just to see her cute little bottom squirm.). On the flip side, if he opened it up and pressed the open pages against her bottom, the whole book dissapeared.

Next he tried aluminum foil, but that didnt work. Then he tried a clipboard, a hat, a laptop, and even some fruit. Everytime something would get pressed against her in a way that would provide any coverage, it would dissapear. But the imprint could still be seen moulding her butt cheeks while it touched her, much to the delight of the boys. They were very thorough, and she was very patient. She would certainly squirm and whimper, periodically begging them to please not look between her legs. But she stayed pressed against the wall and let then experimennt.

Holding the skirt up with a spread of her thighs left her in the most compromising posotion. And while the boys honored her with some level of gentlemanly restraint, she still stuck her hand between her legs so that her mound would be mostly covered by her fingers. Of course Harvey found this to be all the more adorable. She looked like a real life pin-up, but so much prettier.

They had one idea that gave them all hope at first. Harvey gently pressed a layer of plastic food wrap against her cheeks (this was his favorite part. He adored hearing her muffled breaths and embarassed gasps while he pressed the thin layer of plastic over her curves). Though the wrap was clear, it did not vanish! However as he added more layers with more opaqueness it eventually dissapeared, leaving her to appear bottomless before them once again. They found this very discouraging.

Finally, after a few more quick tests, Robin tried one last organic 'material.' Gingerly placeing his flat palm above her butt crack, he slowly lowered it onto her skin untill his hand pressed into her, covering the most intimate curves of her ass directly. It did not dissapear! Not even slightly. Sophie's perception, however, of being a little girl, facing the wall, about to be punished, had now come full circle. It was like the slowest slo-mo spanking in the world on her naked bottom. She sucked in a long deep breath, her fingers trembled, her hips tightened up. She shook and squirmed under his touch until she couldnt take it any longer. With a squeal she spun around, breaking contact, and backing up against the wall.

"Im sorry Soph!" Robin said grimly. "We tried, but its almost like your body is alergic to being covered up. As soon as anything other than a human touch starts to provide coverage, it reacts, turning that thing invisible.

Red faced Sophie was still trying to catch her breath. Her breasts were heaving so much that her arm-bra wasnt quite on top of her nips. They peeked out playfully. She also hadn't pulled up her skirt, not with her hand still between her legs gripping her own mound in a **** grip. "Mmm... mhm... ok!" She said, oddly. It looked like pure terror was in her eyes but she sweetly said, "Thats fine. thanks."

Sophie watched Harvey and Robin glance at each other in confusion. She had become soaking wet from the last 15 minutes of pure bottomless embarassment. She cursed herself for not being more smooth about it! As moisture began to seep around her fingers and trickle down her thigh, she prayed that they wouldnt notice. This was her worst wet teen nightmare, and she had nowhere to hide. She instinctively closed her legs a little tighter. This caused her skirt and panties to pop into the boys view on the floor. That seemed to momentarily distract them. As long as they didnt notice her arousal, she would be fine. Totally fine. Everything else would be fine, fine, fine...