At her chest

Robin chuckled nervously, shifting his aim from her lower to her thighs to her chest. The water jet hit her skin, splashing back slightly. "Okay, so clothes deflect water. That means they're effectively tangible to the outside world, even if we can't see them. But wait... Viki mentioned something about testing everything. Maybe if we bundle you up in something other than a shirt? Here, take the shirt off Soph."

He reached outside the tub and grabbed a large, fluffy washcloth. "Here. Wrap this around yourself. Like a sarong. Or... just over your chest. If you cover up, maybe the curse resets? Or maybe the water will show the cloth since it's an object, not clothes?"

Sophie took off her useless wet tshirt and snatched the washcloth from him, grateful for the offer. The shirt appeared immeadiately, startling Robin. But she quickly tucked the large square of fluffy white fabric under her arms, covering her breasts and stomach. "There. Covered. Can you see it?"

"Nope," Robin said, staring at the same patch of skin. "Still just you. But let's try the water."

He sprayed the washcloth. This time, he saw something interesting. The water didn't hit her skin immediately; it hit a layer of fluff, though the cloth itself was invisible. The water soaked in and then dripped out the bottom of the invisible fabric, creating a strange, dripping veil of liquid that hovered inches away from her skin before falling.

"Whoa," Robin breathed, stepping closer to inspect the phenomenon. "Sophie, look. The water is... pooling. I can't see the cloth, but I can see the water clinging to something."

"Really?" Sophie asked, looking down. To her, the washcloth was just a wet, white mess. "That's good, right? It means it's definately there! And im not crazy!!"

"It's amazing," Robin said, getting caught up in the curiosity. "Let me see... if I press on it..." He reached out with his free hand, intending to poke the wet, invisible mass to gauge its density.

He poked her right in her cleavage.

"EEP!" Sophie squeaked, jerking back at the sudden pressure on her breast. "Robin!"

"Sorry! Sorry!" Robin yelped, but his scientific curiosity was piqued. "Wait, Sophie, look at the water. When I touched it, the water squeezed out. It's acting like an invisible sponge, but i can see where the water holds. We need to see if the insulation holds up further."

He reached out with his free hand, still aiming tge shower head at her breasts, this time cupping the area where the washcloth should be. "I'm just going to... test the saturation levels. To see how much water it visibly holds before it dissapears onto your skin."

"I... okay?" Sophie bit her lip, trembling slightly as Robin's large hands hovered over her chest.

He brought his palm down onto her breasts. He fully expected to feel wet terrycloth. Instead, he felt the shocking give of soft, warm flesh, the washcloth apparently having slipped or shifted the moment she moved. His eyes bulged. He was cupping her bare breasts. They were soft, heavy, and slippery from the spray.

He tried to pull away, but his fingers had slid slightly into the wet skin, and the friction made his grip accidental and firm. "I... I don't feel the cloth," he whispered, his voice cracking.

"Check... check a little lower," Sophie stammered, her face on fire. She was paralyzed with embarrassment, and oddly, she didn't want him to stop touching her. It felt... grounding. "It slipped." It had, after all.

Robin, in a panic, tried to "find" the missing washcloth by sliding his hands lower, down the slope of her breasts. He inadvertently ended up massaging them, his thumbs brushing against her stiffened nipples in his frantic search. The sensation was electric for both of them.

"Robin!" Sophie gasped, her breath hitching. "Your hands!"

"I'm sorry!" Robin practically shouted, his face a mask of terror and arousal. "I can't find the washcloth! It's like it vanished! The water... the water is just running over everything!"

In his desperation to locate the missing towel, he squeezed slightly again, "testing the texture." Sophie let out a high-pitched whimper, her back arching involuntarily.

"The water!" Robin blurted out, realizing the showerhead was still spraying directly at her stiffened nipples. He had it pointed it at his own hand, which were currently kneading her chest. The water hit his hands and her skin, running through his fingers and over her breasts. Interestingly enough, his hand did block his view of her breast. It was the only thing so far. "See? My hand is covering you, and the water... It's not hitting a cloth anymore. It's just... us."

Sophie squeezed her eyes shut, her heart hammering against her ribs—or rather, against Robin's palms. "Okay! You've collected enough data! It's... it's definitely naked under there! Even if I can see the towel!"

Robin yanked his hands back as if he'd been burned. He stumbled backward, tripping over the bath mat and landing hard on his tailbone. He looked at his hands, then at Sophie, who sat there clutching her invisible washcloth, her chest heaving, droplets of water glittering on her pale skin in the harsh bathroom light.

"So," Robin wheezed, staring at the ceiling, "Conclusion: Water does not make invisible clothes visible. Also, invisible towels are hard to find."

Sophie peeked at him through her fingers, a small, hysterical giggle bubbling past her lips for the first time today. "Also," she added, her voice wavering, "you have very warm hands, Robin."

Robin groaned, covering his face with his hands. "I am never going to live this down. Viki is going to kill me."

"Viki is going to want a detailed report," Viki corrected him from the bedroom, wisely keeping her distance so the awkward virgins would have at least a little confidence together.

Sofie grabbed he showerhead from where it lay, turning it back on herself, needing to wash away the embarrassment—and the distracting sensation of Robin's touch. "Now turn around so I can wash my hair. And if you 'accidentally' check the saturation levels of my pubic hair, I will scream."

"Understood," Robin said, scrambling to his feet and turning to face the door, his heart racing a mile a minute. "Strictly monitoring the door. For safety."

He leaned his forehead against the cool wood, listening to the water splash behind him, the image of her wet, naked body burned permanently into his retinas. He knew he should be horrified, but as he stood there listening to her breathe softly in the shower, he couldn't help but feel like this was the weirdest, best morning of his entire college life.